CVE-2024-42367

MEDIUM EPSS 46.3%
Published Aug 12, 20241y ago · Modified Jun 17, 20262w ago
4.8 CVSS 3.1
Medium
Find Similar
Published Aug 12, 2024 1y ago
Last Modified Jun 17, 2026 2w ago

Description

aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. In versions on the 3.10 branch prior to version 3.10.2, static routes which contain files with compressed variants (`.gz` or `.br` extension) are vulnerable to path traversal outside the root directory if those variants are symbolic links. The server protects static routes from path traversal outside the root directory when `follow_symlinks=False` (default). It does this by resolving the requested URL to an absolute path and then checking that path relative to the root. However, these checks are not performed when looking for compressed variants in the `FileResponse` class, and symbolic links are then automatically followed when performing the `Path.stat()` and `Path.open()` to send the file. Version 3.10.2 contains a patch for the issue.

CVSS Details

Base Score
4.8
Exploitability
2.2
Impact
2.5
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
46.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-61

Affected Products 1

VendorProductVersionRange
aiohttpaiohttp*≥3.10.0  –  <3.10.2

References 5

  • github.com https://github.com/aio-libs/aiohttp/blob/e0ff5246e1d29b7710ab1a2bbc972b48169f1c05/aiohttp/web_fileresponse.py#L177
    Product
  • github.com https://github.com/aio-libs/aiohttp/blob/e0ff5246e1d29b7710ab1a2bbc972b48169f1c05/aiohttp/web_urldispatcher.py#L674
    Product
  • github.com https://github.com/aio-libs/aiohttp/commit/ce2e9758814527589b10759a20783fb03b98339f
    Patch
  • github.com https://github.com/aio-libs/aiohttp/pull/8653
    Issue Tracking
  • github.com https://github.com/aio-libs/aiohttp/security/advisories/GHSA-jwhx-xcg6-8xhj
    Vendor Advisory

Remediation

  • github.com https://github.com/aio-libs/aiohttp/commit/ce2e9758814527589b10759a20783fb03b98339f
    Patch