An issue was discovered in Dropbear through 2020.81. Due to a non-RFC-compliant check of the available authentication methods in the client-side SSH code, it is possible for an SSH server to change the login process in its favor. This attack can bypass additional security measures such as FIDO2 tokens or SSH-Askpass. Thus, it allows an attacker to abuse a forwarded agent for logging on to another server unnoticed.
History

Thu, 15 May 2025 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2025-05-15T18:45:40.651Z

Reserved: 2021-07-09T00:00:00.000Z

Link: CVE-2021-36369

cve-icon Vulnrichment

Updated: 2024-08-04T00:54:51.421Z

cve-icon NVD

Status : Modified

Published: 2022-10-12T21:15:09.493

Modified: 2025-05-15T19:15:53.450

Link: CVE-2021-36369

cve-icon Redhat

No data.