Vulnerability · Published Nov 14, 2023 · Assigned by mitre
CVE-2023-46446
Medium 6.8
In plain English
A medium-severity authorization bypass via user-controlled key in the python-asyncssh package (Debian). Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 59% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.8Medium
Exploit odds (30 days)0.9%top 41.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
An issue in AsyncSSH before 2.14.1 allows attackers to control the remote end of an SSH client session via packet injection/removal and shell emulation, aka a "Rogue Session Attack."
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | python-asyncssh | 2.10.1-2+deb12u2 | DEBIAN-CVE-2023-46446 |
| Debian:13 | python-asyncssh | 2.15.0-1 | DEBIAN-CVE-2023-46446 |
| Debian:14 | python-asyncssh | 2.15.0-1 | DEBIAN-CVE-2023-46446 |
| PyPI | asyncssh | 2.14.1 | GHSA-c35q-ffpf-5qpm |
| PyPI | asyncssh | 2.14.1 | PYSEC-2023-239 |
| Ubuntu:22.04:LTS | python-asyncssh | 2.5.0-1ubuntu0.1 | USN-7108-1 |
| Ubuntu:22.04:LTS | python-asyncssh | 2.5.0-1ubuntu0.1 | UBUNTU-CVE-2023-46446 |
Affected products (as reported)
Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
References
- https://github.com/ronf/asyncssh/security/advisories/GHSA-c35q-ffpf-5qpm
- FEDORA-2023-d2956318e4 vendor-advisory
- https://www.terrapin-attack.com
- https://github.com/ronf/asyncssh/blob/develop/docs/changes.rst
- https://github.com/advisories/GHSA-c35q-ffpf-5qpm
- http://packetstormsecurity.com/files/176280/Terrapin-SSH-Connection-Weakening.html
- https://security.netapp.com/advisory/ntap-20231222-0001/
- https://lists.debian.org/debian-lts-announce/2024/09/msg00042.html