Lack of data validation - Path Traversal In aiohttp
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.
Mitigation
Update Impact
Minimal update. May introduce new vulnerabilities or breaking changes.
Ecosystem | Package | Affected version | Patched versions |
|---|---|---|---|
 pypi | 3.9.2 | ||
 debian 11 | 3.7.4-1+deb11u1 | ||
debian 14 | 3.9.5-1 | ||
debian 12 | 3.8.4-1+deb12u1 | ||
debian 13 | 3.9.5-1 |
Aliases
References