CVE-2020-15136
MEDIUM6.5EPSS 0.31%Etcd Gateway TLS authentication only applies to endpoints detected in DNS SRV records
Published: 1/31/2024Modified: 4/28/2026
Also known as:DEBIAN-CVE-2020-15136
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.
Affected packages (2)
- Debian/etcdfrom 0, < 3.3.25+dfsg-5
- Go/go.etcd.io/etcd>= 3.4.0-rc.0, < 3.4.10
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N |
References (5)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2020-15136
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2020-15136
- WEBhttps://github.com/etcd-io/etcd/blob/master/Documentation/op-guide/gateway.md
- WEBhttps://github.com/etcd-io/etcd/security/advisories/GHSA-wr2v-9rpq-c35q
- WEBhttps://lists.fedoraproject.org/archives/list/[email protected]/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP