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.
Weakness
The product does not require that users should have strong passwords.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Etcd | Redhat | 3.3.0 (including) | 3.3.23 (excluding) |
| Etcd | Redhat | 3.4.0 (including) | 3.4.10 (excluding) |
| Red Hat OpenStack Platform 16.1 | RedHat | etcd-0:3.3.23-1.el8ost | * |
| Etcd | Ubuntu | bionic | * |
| Etcd | Ubuntu | focal | * |
| Etcd | Ubuntu | groovy | * |
| Etcd | Ubuntu | hirsute | * |
| Etcd | Ubuntu | impish | * |
| Etcd | Ubuntu | kinetic | * |
| Etcd | Ubuntu | lunar | * |
| Etcd | Ubuntu | mantic | * |
| Etcd | Ubuntu | oracular | * |
| Etcd | Ubuntu | plucky | * |
| Etcd | Ubuntu | trusty | * |
| Etcd | Ubuntu | upstream | * |
| Etcd | Ubuntu | xenial | * |
Potential Mitigations
A product’s design should require adherance to an appropriate password policy. Specific password requirements depend strongly on contextual factors, but it is recommended to contain the following attributes:
Depending on the threat model, the password policy may include several additional attributes.
See NIST 800-63B [REF-1053] for further information on password requirements.
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/112.html
- https://cwe.mitre.org/data/definitions/16.html
- https://cwe.mitre.org/data/definitions/49.html
- https://cwe.mitre.org/data/definitions/509.html
- https://cwe.mitre.org/data/definitions/55.html
- https://cwe.mitre.org/data/definitions/555.html
- https://cwe.mitre.org/data/definitions/561.html
- https://cwe.mitre.org/data/definitions/565.html
- https://cwe.mitre.org/data/definitions/70.html
References
- https://github.com/etcd-io/etcd/security/advisories/GHSA-4993-m7g5-r9hh
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP/
- https://github.com/etcd-io/etcd/security/advisories/GHSA-4993-m7g5-r9hh
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP/