CVE-2023-46445

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2023-46445
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."

5.9 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
http://packetstormsecurity.com/files/176280/Terrapin-SSH-Connection-Weakening.html
https://github.com/advisories/GHSA-cfc2-wr2v-gxm5
https://github.com/ronf/asyncssh/blob/develop/docs/changes.rst
https://github.com/ronf/asyncssh/security/advisories/GHSA-cfc2-wr2v-gxm5 Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ME34ROZWMDK5KLMZKTSA422XVJZ7IMTE/
https://security.netapp.com/advisory/ntap-20231222-0001/
https://www.terrapin-attack.com
http://packetstormsecurity.com/files/176280/Terrapin-SSH-Connection-Weakening.html
https://github.com/advisories/GHSA-cfc2-wr2v-gxm5
https://github.com/ronf/asyncssh/blob/develop/docs/changes.rst
https://github.com/ronf/asyncssh/security/advisories/GHSA-cfc2-wr2v-gxm5 Third Party Advisory
https://lists.debian.org/debian-lts-announce/2024/09/msg00042.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ME34ROZWMDK5KLMZKTSA422XVJZ7IMTE/
https://security.netapp.com/advisory/ntap-20231222-0001/
https://www.terrapin-attack.com
Configurations

Configuration 1 (hide)

cpe:2.3:a:asyncssh_project:asyncssh:*:*:*:*:*:*:*:*
History

03 Nov 2025, 22:16

Type Values Removed Values Added
References
  • () https://lists.debian.org/debian-lts-announce/2024/09/msg00042.html -

21 Nov 2024, 08:28

Type Values Removed Values Added
References () http://packetstormsecurity.com/files/176280/Terrapin-SSH-Connection-Weakening.html - () http://packetstormsecurity.com/files/176280/Terrapin-SSH-Connection-Weakening.html -
References () https://github.com/advisories/GHSA-cfc2-wr2v-gxm5 - () https://github.com/advisories/GHSA-cfc2-wr2v-gxm5 -
References () https://github.com/ronf/asyncssh/blob/develop/docs/changes.rst - () https://github.com/ronf/asyncssh/blob/develop/docs/changes.rst -
References () https://github.com/ronf/asyncssh/security/advisories/GHSA-cfc2-wr2v-gxm5 - Third Party Advisory () https://github.com/ronf/asyncssh/security/advisories/GHSA-cfc2-wr2v-gxm5 - Third Party Advisory
References () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ME34ROZWMDK5KLMZKTSA422XVJZ7IMTE/ - () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ME34ROZWMDK5KLMZKTSA422XVJZ7IMTE/ -
References () https://security.netapp.com/advisory/ntap-20231222-0001/ - () https://security.netapp.com/advisory/ntap-20231222-0001/ -
References () https://www.terrapin-attack.com - () https://www.terrapin-attack.com -

22 Dec 2023, 20:15

Type Values Removed Values Added
References
  • () https://security.netapp.com/advisory/ntap-20231222-0001/ -

21 Dec 2023, 14:15

Type Values Removed Values Added
References
  • () http://packetstormsecurity.com/files/176280/Terrapin-SSH-Connection-Weakening.html -

18 Dec 2023, 16:15

Type Values Removed Values Added
References
  • () https://www.terrapin-attack.com -
  • () https://github.com/advisories/GHSA-cfc2-wr2v-gxm5 -
  • () https://github.com/ronf/asyncssh/blob/develop/docs/changes.rst -
Summary An issue in AsyncSSH v2.14.0 and earlier allows attackers to control the extension info message (RFC 8308) via a man-in-the-middle attack. 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."

26 Nov 2023, 03:15

Type Values Removed Values Added
References
  • () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ME34ROZWMDK5KLMZKTSA422XVJZ7IMTE/ -

17 Nov 2023, 16:05

Type Values Removed Values Added
References () https://github.com/ronf/asyncssh/security/advisories/GHSA-cfc2-wr2v-gxm5 - () https://github.com/ronf/asyncssh/security/advisories/GHSA-cfc2-wr2v-gxm5 - Third Party Advisory
CPE cpe:2.3:a:asyncssh_project:asyncssh:*:*:*:*:*:*:*:*
First Time Asyncssh Project asyncssh
Asyncssh Project
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.9
CWE CWE-345

14 Nov 2023, 03:15

Type Values Removed Values Added
New CVE
Information

Published : 2023-11-14 03:15

Updated : 2025-11-03 22:16

NVD link : CVE-2023-46445

Mitre link : CVE-2023-46445

CVE.ORG link : CVE-2023-46445

JSON object : View

Products Affected

asyncssh_project

  • asyncssh
CWE
CWE-345

Insufficient Verification of Data Authenticity