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Etcd-io Improper Authentication vulnerability

Critical severity GitHub Reviewed Published Apr 4, 2023 to the GitHub Advisory Database • Updated Apr 11, 2023

Package

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

Affected versions

= 3.4.10

Patched versions

None

Description

Authentication vulnerability found in Etcd-io v.3.4.10 allows remote attackers to escalate privileges via the debug function.

This has been fixed in v.3.5.8 and was also backported to 3.4 and 3.5.

References

Published by the National Vulnerability Database Apr 4, 2023
Published to the GitHub Advisory Database Apr 4, 2023
Reviewed Apr 11, 2023
Last updated Apr 11, 2023

Severity

Critical

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
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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:U/C:H/I:H/A:H

EPSS score

0.463%
(75th percentile)

Weaknesses

CVE ID

CVE-2021-28235

GHSA ID

GHSA-gmph-wf7j-9gcm

Source code

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