CVE-2017-8031
Cloud Foundry UAA Denial of Service through client token revocation endpoint
5.3
MEDIUM
CVSS 3.1
EPSS 0.42%
Description
An issue was discovered in Cloud Foundry Foundation cf-release (all versions prior to v279) and UAA (30.x versions prior to 30.6, 45.x versions prior to 45.4, 52.x versions prior to 52.1). In some cases, the UAA allows an authenticated user for a particular client to revoke client tokens for other users on the same client. This occurs only if the client is using opaque tokens or JWT tokens validated using the check_token endpoint. A malicious actor could cause denial of service.
How to fix CVE-2017-8031
To remediate CVE-2017-8031, upgrade the affected package to a fixed version below.
- —upgrade to 4.7.1 or later
Is CVE-2017-8031 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 4.6.0, < 4.7.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |