CVE-2020-5415GHSA-627P-RR78-99RJBIT-CONCOURSE-2020-5415
Concourse's GitLab auth allows impersonation
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 6.4.1, 6.3.1, 0.0.0-20200730150203-821b48abfd88, 0.0.0-20200730151558-b00d1c8d8576, 1.6.1-0.20200730151558-b00d1c8d8576
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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.
Timeline
- CVE published
- Record last updated
Affected versions
- VMware Tanzu Concourse
From 6.4 · fixed in 6.4.1; From 6.3 · fixed in 6.3.1
- github.com/concourse/concourseGo
From 6.4.0 · fixed in 6.4.1
- github.com/concourse/concourseGo
From 1.6.1 · fixed in 6.3.1
- github.com/concourse/dexGo
From 6.4.0 · fixed in 6.4.1
- github.com/concourse/dexGo
From 0.0.0 · fixed in 6.3.1
- github.com/concourse/dexGo
fixed in 0.0.0-20200730150203-821b48abfd88
- github.com/concourse/concourseGo
fixed in 0.0.0-20200730151558-b00d1c8d8576
- github.com/concourse/concourseGo
From 0.0.0 · fixed in 1.6.1-0.20200730151558-b00d1c8d8576