Description (CNA)
AsyncSSH is a Python package which provides an asynchronous client and server implementation of the SSHv2 protocol on top of the Python asyncio framework. Prior to 2.23.1, a malicious SSH server can write arbitrary files on the asyncssh SCP client's filesystem by sending filenames containing ../ traversal sequences because _parse_cd_args in scp.py returns server-provided names verbatim and _recv_files joins them to the destination path without enforcing the target directory boundary. This issue is fixed in version 2.23.1.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| ronf / asyncssh | affected < 2.23.1 |
CWE
CWE-22
References
- https://github.com/ronf/asyncssh/security/advisories/GHSA-2wxc-x7rj-hg8f
- https://github.com/ronf/asyncssh/commit/d730803b8e4e94c20c7580d90f94d1e05f9f58de
- https://github.com/ronf/asyncssh/releases/tag/v2.23.1
ADP enrichment
No English description supplied.
No references supplied.