CVE-2020-5415
Concourse's GitLab auth allows impersonation
7.5
HIGH
CVSS 3.1
EPSS 0.26%
Description
Concourse, versions prior to 6.3.1 and 6.4.1, in installations which use the GitLab auth connector, is vulnerable to identity spoofing by way of configuring a GitLab account with the same full name as another user who is granted access to a Concourse team. GitLab groups do not have this vulnerability, so GitLab users may be moved into groups which are then configured in the Concourse team.
How to fix CVE-2020-5415
To remediate CVE-2020-5415, upgrade the affected package to a fixed version below.
- —upgrade to 6.3.1 or later
- —upgrade to 6.4.1 or later
- —upgrade to 6.4.1 or later
Is CVE-2020-5415 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 6.3.1, >= 6.4.0, < 6.4.1
- >= 6.4.0, < 6.4.1
- >= 6.4.0, < 6.4.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |