CVE Vulnerabilities

CVE-2020-12277

Incorrect Default Permissions

Published: Apr 29, 2020 | Modified: May 04, 2020
CVSS 3.x
5.3
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:P/A:N
RedHat/V2
RedHat/V3
Ubuntu

GitLab 10.8 through 12.9 has a vulnerability that allows someone to mirror a repository even if the feature is not activated.

Weakness

During installation, installed file permissions are set to allow anyone to modify those files.

Affected Software

Name Vendor Start Version End Version
Gitlab Gitlab 12.9.0 *
Gitlab Gitlab 12.9.0 *
Gitlab Gitlab 12.8.0 *
Gitlab Gitlab 12.8.0 *
Gitlab Gitlab 10.8.0 *
Gitlab Gitlab 10.8.0 *

Potential Mitigations

  • Compartmentalize the system to have “safe” areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
  • Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.

References