Access Restriction Bypass Affecting gitlab package, versions <8.8.2+dfsg-1
Threat Intelligence
Snyk has a published code exploit for this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIANUNSTABLE-GITLAB-317233
- published23 Jan 2017
- disclosed23 Jan 2017
Introduced: 23 Jan 2017
CVE-2016-4340 (opens in a new tab)How to fix?
Upgrade Debian:unstable gitlab to version 8.8.2+dfsg-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream gitlab package and not the gitlab package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
The impersonate feature in Gitlab 8.7.0, 8.6.0 through 8.6.7, 8.5.0 through 8.5.11, 8.4.0 through 8.4.9, 8.3.0 through 8.3.8, and 8.2.0 through 8.2.4 allows remote authenticated users to "log in" as any other user via unspecified vectors.
References
- https://security-tracker.debian.org/tracker/CVE-2016-4340
- https://www.exploit-db.com/exploits/40236/
- http://packetstormsecurity.com/files/138368/GitLab-Impersonate-Privilege-Escalation.html
- https://about.gitlab.com/2016/05/02/cve-2016-4340-patches/
- https://gitlab.com/gitlab-org/gitlab-ce/issues/15548
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2016-4340
- https://www.exploit-db.com/exploits/40236