An issue has been discovered in GitLab EE affecting all versions starting from 14.2 before 15.9.6, all versions starting from 15.10 before 15.10.5, all versions starting from 15.11 before 15.11.1. Lack of verification on RelayState parameter allowed a maliciously crafted URL to obtain access tokens granted for 3rd party Group SAML SSO logins. This feature isn't enabled by default.
The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.
Link | Tags |
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https://gitlab.com/gitlab-org/gitlab/-/issues/406235 | broken link |
https://hackerone.com/reports/1923672 | permissions required |
https://gitlab.com/gitlab-org/cves/-/blob/master/2023/CVE-2023-1965.json | third party advisory |