CVE - CVE-2021-36368

CVE-ID
CVE-2021-36368	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
DISPUTED An issue was discovered in OpenSSH before 8.9. If a client is using public-key authentication with agent forwarding but without -oLogLevel=verbose, and an attacker has silently modified the server to support the None authentication option, then the user cannot determine whether FIDO authentication is going to confirm that the user wishes to connect to that server, or that the user wishes to allow that server to connect to a different server on the user's behalf. NOTE: the vendor's position is "this is not an authentication bypass, since nothing is being bypassed."
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
CONFIRM:https://bugzilla.mindrot.org/show_bug.cgi?id=3316 MISC:https://docs.ssh-mitm.at/trivialauth.html MISC:https://github.com/openssh/openssh-portable/pull/258 MISC:https://security-tracker.debian.org/tracker/CVE-2021-36368 MISC:https://www.openssh.com/security.html
Assigning CNA
MITRE Corporation
Date Record Created
20210709	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20210709)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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