CVE-2021-39871
MEDIUMCVSS 4.3/10EPSS 0.90%
Last modified
CVE-2021-39871 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. In all versions of GitLab CE/EE since version 13.0, an instance that has the setting to disable Bitbucket Server import enabled is bypassed by an attacker making a crafted API call.. EPSS estimates a 0.90% chance of exploitation in the next 30 days.
Description
In all versions of GitLab CE/EE since version 13.0, an instance that has the setting to disable Bitbucket Server import enabled is bypassed by an attacker making a crafted API call.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Gitlab | Gitlab | >= 13.0.0, < 14.1.7 |
| Gitlab | Gitlab | >= 14.2.0, < 14.2.5 |
| Gitlab | Gitlab | 4.3.0 |
References
- https://hackerone.com/reports/630263Permissions Required, Third Party Advisory
- https://hackerone.com/reports/630263Permissions Required, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-39871?
In all versions of GitLab CE/EE since version 13.0, an instance that has the setting to disable Bitbucket Server import enabled is bypassed by an attacker making a crafted API call.
How severe is CVE-2021-39871?
CVE-2021-39871 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.90% probability of exploitation in the next 30 days.
How do I fix CVE-2021-39871?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2021-39871?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST