SB2022101340 - Multiple vulnerabilities in Pivotal Concourse

Description

This security bulletin contains information about 2 vulnerabilities.

1) Information disclosure (CVE-ID: CVE-2022-39222)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to the way OAuth are handled during the OIDC flow. A remote attacker can trick the victim to navigate to a malicious website and guiding them through the OIDC flow, steal the OAuth authorization code in the process. The authorization code then can be exchanged by the attacker for a token, gaining access to applications accepting that token.

2) Improper access control (CVE-ID: CVE-2022-31683)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N]

The vulnerability allows a remote user to bypass team scope authorization.

The vulnerability exists due to improper access control in team scope authorization handling when processing POST or PUT requests with :team_name in the request body. A remote user can send a crafted request to bypass team scope authorization.

The issue involves HTTP parameter pollution.

Remediation

Install update from vendor's website.

References

• https://github.com/concourse/concourse/releases/tag/v6.7.9
• https://github.com/concourse/concourse/releases/tag/v7.8.3
• https://github.com/concourse/concourse/security/advisories/GHSA-5jp2-vwrj-99rf