Vulnerability identifier: #VU45747
Vulnerability risk: Medium
CVSSv3.1: 4.9 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-287
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Pivotal Concourse
Server applications /
Application servers
Vendor: Pivotal
Description
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to an error in when processing authentication requests. Installations which use the GitLab auth connector, are 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.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Pivotal Concourse: 6.4.0, 6.3.0
External links
http://github.com/concourse/concourse/security/advisories/GHSA-627p-rr78-99rj
http://tanzu.vmware.com/security/cve-2020-5415
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.