CVE-2020-5415: Concourse's GitLab auth allows impersonation
Severity
Critical
Vendor
VMware Tanzu
Description
Concourse for VMware Tanzu, versions prior to 6.3.1, 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.
Affected VMware Products and Versions
Severity is critical unless otherwise noted.
-
Concourse for VMware Tanzu
- 6.3 versions prior to 6.3.1
Mitigation
Users of affected versions should apply the following mitigation or upgrade. Releases that have fixed this issue include:
-
Concourse for VMware Tanzu
- 6.3.1
Credit
Gregoire Detrez
References
History
2020-08-11: Initial vulnerability report published.