Information disclosure in Pivotal Concourse - CVE-2019-3803
Published: January 12, 2019 / Updated: July 17, 2020
Vulnerability identifier: #VU31168
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-3803
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.
Pivotal Concourse, all versions prior to 4.2.2, puts the user access token in a url during the login flow. A remote attacker who gains access to a user's browser history could obtain the access token and use it to authenticate as the user.
Affected software
Pivotal Concourse
How to mitigate CVE-2019-3803
Install update from vendor's website.
Pivotal Concourse - update to 4.2.2