title: Concourse includes token in CLI authentication callback
description: 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.
problem types: CWE-200: Information Exposure
affected:
{
product: Concourse
vendor: Pivotal
versions:
lessThan: 4.2.2, status: affected, version: all versions, versionType: custom
}
metrics:
cvssV3_0: [
attackComplexity: HIGH
attackVector: LOCAL
availabilityImpact: LOW
baseScore: 4.5
baseSeverity: MEDIUM
confidentialityImpact: LOW
integrityImpact: LOW
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: REQUIRED
vectorString: CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
version: 3.0
]