CVE-2020-15136 – go.etcd.io/etcd

Package

Manager: go
Name: go.etcd.io/etcd
Vulnerable Version: >=3.4.0-rc.0 <3.4.10 || >=0 <3.3.23

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

EPSS: 0.00308 pctl0.53468

Details

Etcd Gateway TLS authentication only applies to endpoints detected in DNS SRV records ### Vulnerability type Cryptography ### Workarounds Refer to the [gateway documentation](https://github.com/etcd-io/etcd/blob/master/Documentation/op-guide/gateway.md). The vulnerability was spotted due to unclear documentation of how the gateway handles endpoints validation. ### Detail 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. The auditors has noted that appropriate documentation of this validation functionality plus deprecation of this misleading functionality is an acceptable path forward. ### References Find out more on this vulnerability in the [security audit report](https://github.com/etcd-io/etcd/blob/master/security/SECURITY_AUDIT.pdf) ### For more information If you have any questions or comments about this advisory: * Contact the [etcd security committee](https://github.com/etcd-io/etcd/blob/master/security/security-release-process.md#product-security-committee-psc)

Metadata

Created: 2024-01-31T00:21:56Z
Modified: 2024-01-31T00:21:56Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/01/GHSA-wr2v-9rpq-c35q/GHSA-wr2v-9rpq-c35q.json
CWE IDs: ["CWE-287", "CWE-306"]
Alternative ID: GHSA-wr2v-9rpq-c35q
Finding: F006
Auto approve: 1