title: UAA Privilege Escalation
description: Cloud Foundry UAA release, versions prior to v64.0, and UAA, versions prior to 4.23.0, contains a validation error which allows for privilege escalation. A remote authenticated user may modify the url and content of a consent page to gain a token with arbitrary scopes that escalates their privileges.
problem types: Improper Access Control
affected:
{
product: UAA
vendor: Cloud Foundry
versions:
lessThan: 4.23.0, status: affected, version: all versions, versionType: custom
}
{
product: UAA Release
vendor: Cloud Foundry
versions:
lessThan: 64.0, status: affected, version: all versions, versionType: custom
}
metrics:
cvssV3_0: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 9.9
baseSeverity: CRITICAL
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: LOW
scope: CHANGED
userInteraction: NONE
vectorString: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
version: 3.0
]