What is CVE-2020-15136?

CVE-2020-15136 is a medium-severity vulnerability in Etcd-io Etcd, classified under Improper Authentication. CVSS score: 6.5/10. Published 2020-08-06.

How severe is CVE-2020-15136?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Auth bypass in Etcd-io Etcd

CVE-2020-15136

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 f…

Vulnerability class: Broken Authentication

EPSS: 0.003 (54.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N.

Affected products

Etcd-io Etcd — versions >= 3.4.0, < 3.4.10, < 3.3.23

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

github.com/etcd-io/etcd/security/advisories/GHSA-wr2v-9rpq-c35q (x_refsource_CONFIRM)
github.com/etcd-io/etcd/blob/master/Documentation/op-guide/gateway.md (x_refsource_MISC)
FEDORA-2020-cd43b84c16 (vendor-advisory, x_refsource_FEDORA)

Frequently asked questions

What is CVE-2020-15136?: CVE-2020-15136 is a medium-severity vulnerability in Etcd-io Etcd, classified under Improper Authentication. CVSS score: 6.5/10. Published 2020-08-06.
How severe is CVE-2020-15136?: Medium severity. CVSS v3 base score is 6.5 out of 10.