Vulnerability · Published Aug 6, 2020 · Assigned by GitHub_M
CVE-2020-15115No minimum password length in etcd
Medium 5.8
In plain English
A medium-severity security flaw in etcd from etcd-io. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 71% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.8Medium
Exploit odds (30 days)1.3%top 28.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
etcd before versions 3.3.23 and 3.4.10 does not perform any password length validation, which allows for very short passwords, such as those with a length of one. This may allow an attacker to guess or brute-force users' passwords with little computational effort.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | etcd | 3.3.25+dfsg-5 | DEBIAN-CVE-2020-15115 |
| Debian:13 | etcd | 3.3.25+dfsg-5 | DEBIAN-CVE-2020-15115 |
| Debian:14 | etcd | 3.3.25+dfsg-5 | DEBIAN-CVE-2020-15115 |
| Go | go.etcd.io/etcd/client/v3 | 3.3.23 | GHSA-4993-m7g5-r9hh |
| Go | go.etcd.io/etcd/client/v3 | 3.4.10 | GHSA-4993-m7g5-r9hh |
| Ubuntu:25.10 | etcd | no fix listed | UBUNTU-CVE-2020-15115 |
| Ubuntu:26.10 | etcd | no fix listed | UBUNTU-CVE-2020-15115 |
Affected products (as reported)
Weakness: CWE-521 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
References
- https://github.com/etcd-io/etcd/security/advisories/GHSA-4993-m7g5-r9hh x_refsource_CONFIRM
- FEDORA-2020-cd43b84c16 vendor-advisory, x_refsource_FEDORA