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etcd has no minimum password length

Moderate severity GitHub Reviewed Published Aug 5, 2020 in etcd-io/etcd • Updated Jan 28, 2023

Package

gomod go.etcd.io/etcd/client/v3 (Go)

Affected versions

>= 3.4.0, < 3.4.10
< 3.3.23

Patched versions

3.4.10
3.3.23

Description

Vulnerability type

Access Control

Workarounds

The etcdctl and etcd API do not enforce a specific password length during user creation or user password update operations. It is the responsibility of the administrator to enforce these requirements.

Detail

etcd 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.

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:

References

@spzala spzala published to etcd-io/etcd Aug 5, 2020
Published by the National Vulnerability Database Aug 6, 2020
Published to the GitHub Advisory Database Oct 6, 2022
Reviewed Oct 6, 2022
Last updated Jan 28, 2023

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Changed
Confidentiality
Low
Integrity
None
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N

EPSS score

0.178%
(55th percentile)

Weaknesses

CVE ID

CVE-2020-15115

GHSA ID

GHSA-4993-m7g5-r9hh

Source code

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