CVE-2023-46445

Published: Nov 14, 2023Modified: Jun 17, 2026

5.9

Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Exploitability: 2.2 / Impact: 3.6

Source: NVD

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."

Affected (1)

Products: Asyncssh Project: Asyncssh

Asyncssh Project

1 product

Asyncssh

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Asyncssh Project Asyncssh	Before 2.14.1

Related CWEs

CWE-345

Insufficient Verification of Data Authenticity

The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.

References (15)

http://packetstormsecurity.com/files/176280/Terrapin-SSH-Connection-Weakening.html

Source: cve@mitre.org

https://github.com/advisories/GHSA-cfc2-wr2v-gxm5

Source: cve@mitre.org

https://github.com/ronf/asyncssh/blob/develop/docs/changes.rst

Source: cve@mitre.org

https://github.com/ronf/asyncssh/security/advisories/GHSA-cfc2-wr2v-gxm5

Source: cve@mitre.org

Third Party Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ME34ROZWMDK5KLMZKTSA422XVJZ7IMTE/

Source: cve@mitre.org

https://security.netapp.com/advisory/ntap-20231222-0001/

Source: cve@mitre.org

https://www.terrapin-attack.com

Source: cve@mitre.org

http://packetstormsecurity.com/files/176280/Terrapin-SSH-Connection-Weakening.html