Vulnerability Description
In ectd before versions 3.4.10 and 3.3.23, gateway TLS authentication is only applied to endpoints detected in DNS SRV records. When starting a gateway, TLS authentication will only be attempted on endpoints identified in DNS SRV records for a given domain, which occurs in the discoverEndpoints function. No authentication is performed against endpoints provided in the --endpoints flag. This has been fixed in versions 3.4.10 and 3.3.23 with improved documentation and deprecation of the functionality.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Redhat | Etcd | >= 3.3.0, < 3.3.23 |
| Fedoraproject | Fedora | 32 |
Related Weaknesses (CWE)
References
- https://github.com/etcd-io/etcd/blob/master/Documentation/op-guide/gateway.mdBroken Link
- https://github.com/etcd-io/etcd/security/advisories/GHSA-wr2v-9rpq-c35qThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://github.com/etcd-io/etcd/blob/master/Documentation/op-guide/gateway.mdBroken Link
- https://github.com/etcd-io/etcd/security/advisories/GHSA-wr2v-9rpq-c35qThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
FAQ
What is CVE-2020-15136?
CVE-2020-15136 is a vulnerability with a CVSS score of 6.5 (MEDIUM). In ectd before versions 3.4.10 and 3.3.23, gateway TLS authentication is only applied to endpoints detected in DNS SRV records. When starting a gateway, TLS authentication will only be attempted on en...
How severe is CVE-2020-15136?
CVE-2020-15136 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-15136?
Check the references section above for vendor advisories and patch information. Affected products include: Redhat Etcd, Fedoraproject Fedora.