CVE-2021-36369
Vulnerability from cvelistv5
Published
2022-10-12 00:00
Modified
2024-08-04 00:54
Severity ?
Summary
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.
References
cve@mitre.orghttps://github.com/mkj/dropbear/pull/128Third Party Advisory
cve@mitre.orghttps://github.com/mkj/dropbear/releasesRelease Notes, Third Party Advisory
cve@mitre.orghttps://github.com/mkj/dropbear/releases/tag/DROPBEAR_2022.82Release Notes, Third Party Advisory
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2022/11/msg00015.htmlMailing List, Third Party Advisory
Impacted products
n/an/a
Show details on NVD website

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