CVE-2023-46445

medium

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."

References

Advisories
More

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

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

https://github.com/krlabs/openssh-vulnerabilities

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

https://www.terrapin-attack.com

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

https://lists.debian.org/debian-lts-announce/2024/09/msg00042.html

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

https://euvd.enisa.europa.eu/vulnerability/EUVD-2023-0045

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

Details

Source: Mitre, NVD

Published: 2023-11-14

Updated: 2026-02-25

Named Vulnerability: Terrapin Attack

Risk Information

CVSS v2

Base Score: 5.4

Vector: CVSS2#AV:N/AC:H/Au:N/C:N/I:C/A:N

Severity: Medium

CVSS v3

Base Score: 5.9

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