CVE-2020-5415

Concourse's GitLab auth allows impersonation

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.

Category

10.0
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.26%
Third-Party Advisory github.com Third-Party Advisory vmware.com
Affected: VMware Tanzu Concourse
Published at:
Updated at:

References

Link Tags
https://github.com/concourse/concourse/security/advisories/GHSA-627p-rr78-99rj third party advisory patch
https://tanzu.vmware.com/security/cve-2020-5415 third party advisory

Frequently Asked Questions

What is the severity of CVE-2020-5415?
CVE-2020-5415 has been scored as a critical severity vulnerability.
How to fix CVE-2020-5415?
To fix CVE-2020-5415, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-5415 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-5415 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-5415?
CVE-2020-5415 affects VMware Tanzu Concourse.
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