CVE-2019-3798 — Cloud Foundry Cloud Controller API Release, versions prior to 1

Cloud Foundry Cloud Controller API Release, versions prior to 1.79.0, contains improper authentication when validating user permissions. A remote authenticated malicious user with the ability to create UAA clients and knowledge of the email of a victim in the foundation may escal

01What is this vulnerability?

Cloud Foundry Cloud Controller API Release, versions prior to 1.79.0, contains improper authentication when validating user permissions. A remote authenticated malicious user with the ability to create UAA clients and knowledge of the email of a victim in the foundation may escalate their privileges to that of the victim by creating a client with a name equal to the guid of their victim.

02Affected products

Vendor	Product	Versions
Cloud Foundry	CAPI	release — All

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2019-04-17T13:32:35.609Z
• Last modified: 2024-09-17T04:09:11.026Z

09References

• www.cloudfoundry.org — https://www.cloudfoundry.org/blog/cve-2019-3798
• www.securityfocus.com — http://www.securityfocus.com/bid/108095