CVE-2023-46445 AsyncSSH Rogue Extension Negotiation
Attackers can bypass SSH extension negotiation security checks via man-in-the-middle attacks in AsyncSSH, requiring library upgrades.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-46445?
CVE-2023-46445 is a medium-severity vulnerability in n/a, published on 14 Nov 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue in AsyncSSH before 2.14.1 allows attackers to control the extension info message (RFC 8308) via a man-in-the-middle attack, aka a "Rogue Extension Negotiation."
Weakness: CWE-345
Which versions are affected by CVE-2023-46445?
3 open source packages ship an affected version, including asyncssh. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
asyncssh PyPI | All versions | 2.14.1 |
asyncssh PyPI | All versions | 2.14.1 |
asyncssh PyPI | All versions | 2.14.1 |
Products include Asyncssh Project Asyncssh.
How do I fix CVE-2023-46445?
Upgrade asyncssh to 2.14.1 or later.
Is CVE-2023-46445 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-46445 exists.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2023-46445, GHSA-cfc2-wr2v-gxm5, PYSEC-2023-237, UBUNTU-CVE-2023-46445, openSUSE-SU-2024:13417-1.