CVE-2023-6680

Published: 15 December 2023

An improper certificate validation issue in Smartcard authentication in GitLab EE affecting all versions from 11.6 prior to 16.4.4, 16.5 prior to 16.5.4, and 16.6 prior to 16.6.2 allows an attacker to authenticate as another user given their public key if they use Smartcard authentication. Smartcard authentication is an experimental feature and has to be manually enabled by an administrator.

Priority

Cvss 3 Severity Score

8.1

Score breakdown

Status

Package	Release	Status
gitlab Launchpad, Ubuntu, Debian	bionic	Ignored (end of standard support)
	focal	Does not exist
	jammy	Does not exist
	lunar	Does not exist
	mantic	Does not exist
	trusty	Ignored (end of standard support)
	upstream	Not vulnerable (debian: Specific to EE)
	xenial	Needs triage

Severity score breakdown

Parameter	Value
Base score	8.1
Attack vector	Network
Attack complexity	High
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References

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