Vulnerability Description
Cloud foundry instances having CAPI version between 1.140 and 1.152.0 along with loggregator-agent v7+ may override other users syslog drain credentials if they're aware of the client certificate used for that syslog drain. This applies even if the drain has zero certs. This would allow the user to override the private key and add or modify a certificate authority used for the connection.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cloudfoundry | Capi-Release | >= 1.140, <= 1.152.0 |
| Cloudfoundry | Cf-Deployment | >= 24.7.0, <= 29.0.0 |
| Cloudfoundry | Loggregator-Agent | >= 7.0, <= 7.2.1 |
Related Weaknesses (CWE)
References
- https://www.cloudfoundry.org/blog/cve-2023-20881-cas-for-syslog-drain-mtls-featuVendor Advisory
- https://www.cloudfoundry.org/blog/cve-2023-20881-cas-for-syslog-drain-mtls-featuVendor Advisory
FAQ
What is CVE-2023-20881?
CVE-2023-20881 is a vulnerability with a CVSS score of 8.1 (HIGH). Cloud foundry instances having CAPI version between 1.140 and 1.152.0 along with loggregator-agent v7+ may override other users syslog drain credentials if they're aware of the client certificate used...
How severe is CVE-2023-20881?
CVE-2023-20881 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-20881?
Check the references section above for vendor advisories and patch information. Affected products include: Cloudfoundry Capi-Release, Cloudfoundry Cf-Deployment, Cloudfoundry Loggregator-Agent.