Privilege escalation in Cloud Foundry Cf Routing
CVE-2019-3789
Cloud Foundry Routing Release, all versions prior to 0.188.0, contains a vulnerability that can hijack the traffic to route services hosted outside the platform. A user with space developer permissions can create a private domain that shadows the external domain of the route service, and map that route to an app. When the gorouter receives traffic destined for the external route service, this traffic will instead be directed to the internal app using the shadow route.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.008 (54.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Cloud Foundry Cf Routing — versions All
- Cloudfoundry Routing Release
Weakness classification (CWE)
References
- www.cloudfoundry.org/blog/cve-2019-3789 (Vendor Advisory)
Frequently asked questions
- What is CVE-2019-3789?
- CVE-2019-3789 is a medium-severity vulnerability in Cloud Foundry Cf Routing, classified under CWE-840. CVSS score: 6.5/10. Published 2019-04-24.
- How severe is CVE-2019-3789?
- Medium severity. CVSS v3 base score is 6.5 out of 10.