Unauthenticated 2FA-status disclosure via member-page serialization
Published Jul 1, 2022 · Updated Aug 3, 2024
Information exposure in GitLab CE/EE 13.4 through 14.10.4, 15.0 through 15.0.3, and 15.1.0 allows remote attackers to read users' 2FA status. The public group members page serializes each listed user's two_factor_enabled value into the server-rendered data-members-data HTML attribute without enforcing the owner or maintainer visibility restriction. A signed-out request to any public group's members page is sufficient, exposing which accounts lack 2FA but not credentials or account control.
Summary
What happened
Information exposure in GitLab CE/EE 13.4 through 14.10.4, 15.0 through 15.0.3, and 15.1.0 allows remote attackers to read users' 2FA status. The public group members page serializes each listed user's two_factor_enabled value into the server-rendered data-members-data HTML attribute without enforcing the owner or maintainer visibility restriction. A signed-out request to any public group's members page is sufficient, exposing which accounts lack 2FA but not credentials or account control.
The record
- CVE
- CVE-2022-1963
- Published
- Jul 1, 2022
- Updated
- Aug 3, 2024
- Vendor
- GitLab
- Product
- GitLab
- Classifications
- T1589
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 1, 2022CVE publishedPublication date reported by the CVE source.
- Aug 3, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=>=13.4, <14.10.5
- Affected versionversion=>=15.0, <15.0.4
- Affected versionversion=>=15.1, <15.1.1
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Public group 2FA-status extraction scriptfunctional · demonstrated
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Technologies
Your stack
See the directory against your own environment.
Your stack
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