Description
In etcd before versions 3.3.23 and 3.4.10, certain directory paths are created (etcd data directory and the directory path when provided to automatically generate self-signed certificates for TLS connections with clients) with restricted access permissions (700) by using the os.MkdirAll. This function does not perform any permission checks when a given directory path exists already. A possible workaround is to ensure the directories have the desired permission (700).
References (2)
Core 2
Core References
Third Party Advisory x_refsource_confirm
https://github.com/etcd-io/etcd/security/advisories/GHSA-chh6-ppwq-jh92
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP/
Scores
CVSS v3
5.7
EPSS
0.0023
EPSS Percentile
13.5%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N
Details
CWE
CWE-281
Status
published
Products (3)
etcd/etcd
< 3.3.23
etcd-io/etcd
3.4.0-rc.0 - 3.4.10Go
fedoraproject/fedora
32
Published
Aug 05, 2020
Tracked Since
Feb 18, 2026