Description
An issue has been discovered in GitLab CE/EE affecting all versions starting from 13.7 prior to 17.4.6, from 17.5 prior to 17.5.4, and from 17.6 prior to 17.6.2. It may have been possible for an attacker with a victim's `CI_JOB_TOKEN` to obtain a GitLab session token belonging to the victim.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| GitLab | GitLab | 13.7 – < 17.4.6, 17.5 – < 17.5.4, 17.6 – < 17.6.2 | 17.4.6 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | gitlab | No fix yet | — |
References
- GitLab Issue #494694 issue-tracking permissions-required
- HackerOne Bug Bounty Report #2724948 technical-description exploit permissions-required