title: CredHub Service Broker uses guessable client secret
description: Pivotal CredHub Service Broker, versions prior to 1.1.0, uses a guessable form of random number generation in creating service broker's UAA client. A remote malicious user may guess the client secret and obtain or modify credentials for users of the CredHub Service.
problem types: Predictability problems
affected:
{
product: CredHub Service Broker
vendor: Pivotal Cloud Foundry
versions:
lessThan: 1.1.0, status: affected, version: all versions, versionType: custom
}
metrics:
cvssV3_0: [
attackComplexity: LOW
attackVector: ADJACENT_NETWORK
availabilityImpact: NONE
baseScore: 8.1
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: HIGH
scope: CHANGED
userInteraction: NONE
vectorString: CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
version: 3.0
]