Ecosyste.ms: Advisories
An open API service providing security vulnerability metadata for many open source software ecosystems.
Security Advisories: GSA_kwCzR0hTQS13cjJ2LTlycHEtYzM1cc4AA49D
Etcd Gateway TLS authentication only applies to endpoints detected in DNS SRV records
Vulnerability type
Cryptography
Workarounds
Refer to the gateway documentation. 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
For more information
If you have any questions or comments about this advisory:
- Contact the etcd security committee
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS13cjJ2LTlycHEtYzM1cc4AA49D
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: 3 months ago
Updated: 3 months ago
CVSS Score: 6.5
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
Identifiers: GHSA-wr2v-9rpq-c35q, CVE-2020-15136
References:
- https://github.com/etcd-io/etcd/security/advisories/GHSA-wr2v-9rpq-c35q
- https://nvd.nist.gov/vuln/detail/CVE-2020-15136
- https://github.com/etcd-io/etcd/blob/master/Documentation/op-guide/gateway.md
- https://lists.fedoraproject.org/archives/list/[email protected]/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP/
- https://github.com/advisories/GHSA-wr2v-9rpq-c35q
Blast Radius: 29.9
Affected Packages
go:go.etcd.io/etcd
Dependent packages: 6,929Dependent repositories: 39,452
Downloads:
Affected Version Ranges: < 3.3.23, >= 3.4.0-rc.0, <= 3.4.9
Fixed in: 3.3.23, 3.4.10
All affected versions: 0.1.0, 0.1.1, 0.1.2, 0.2.0, 0.3.0, 0.4.0, 0.4.1, 0.4.2, 0.4.3, 0.4.4, 0.4.5, 0.4.6, 0.4.7, 0.4.8, 0.4.9, 2.0.0, 2.0.1, 2.0.2, 2.0.3, 2.0.4, 2.0.5, 2.0.6, 2.0.7, 2.0.8, 2.0.9, 2.0.10, 2.0.11, 2.0.12, 2.0.13, 2.1.0, 2.1.1, 2.1.2, 2.1.3, 2.2.0, 2.2.1, 2.2.2, 2.2.3, 2.2.4, 2.2.5, 2.3.0, 2.3.1, 2.3.2, 2.3.3, 2.3.4, 2.3.5, 2.3.6, 2.3.7, 2.3.8, 3.0.0, 3.0.1, 3.0.2, 3.0.3, 3.0.4, 3.0.5, 3.0.6, 3.0.7, 3.0.8, 3.0.9, 3.0.10, 3.0.11, 3.0.12, 3.0.13, 3.0.14, 3.0.15, 3.0.16, 3.0.17, 3.1.0, 3.1.1, 3.1.2, 3.1.3, 3.1.4, 3.1.5, 3.1.6, 3.1.7, 3.1.8, 3.1.9, 3.1.10, 3.1.11, 3.1.12, 3.1.13, 3.1.14, 3.1.15, 3.1.16, 3.1.17, 3.1.18, 3.1.19, 3.1.20, 3.2.0, 3.2.1, 3.2.2, 3.2.3, 3.2.4, 3.2.5, 3.2.6, 3.2.7, 3.2.8, 3.2.9, 3.2.10, 3.2.11, 3.2.12, 3.2.13, 3.2.14, 3.2.15, 3.2.16, 3.2.17, 3.2.18, 3.2.19, 3.2.20, 3.2.21, 3.2.22, 3.2.23, 3.2.24, 3.2.25, 3.2.26, 3.2.27, 3.2.28, 3.2.29, 3.2.30, 3.2.31, 3.2.32, 3.3.0, 3.3.1, 3.3.2, 3.3.3, 3.3.4, 3.3.5, 3.3.6, 3.3.7, 3.3.8, 3.3.9, 3.3.10, 3.3.11, 3.3.12, 3.3.13, 3.3.15, 3.3.16, 3.3.17, 3.3.18, 3.3.19, 3.3.20, 3.3.21, 3.3.22
All unaffected versions: 3.3.24, 3.3.25, 3.3.26, 3.3.27