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CVE-2021-28235 — Vulnerability in go.etcd.io/etcd/v3 — CVE Details

CRITICAL

Etcd-io Improper Authentication vulnerability

Published April 4, 2023Updated December 6, 2023Source: osv

Summary

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](https://github.com/etcd-io/etcd/blob/main/CHANGELOG/CHANGELOG-3.5.md#etcd-server) and was also backported to [3.4](https://github.com/etcd-io/etcd/pull/15655) and [3.5](https://github.com/etcd-io/etcd/pull/15653).

Advisory Timeline

  • First published April 4, 2023 (1287 days ago).
  • Last revised December 6, 2023 — 245 days after initial publication.

Affected Packages (1)

Affects 1 ecosystem: go (1).

PackageEcosystemAffectedFixed In
go.etcd.io/etcd/v3
go
3.4.10No fix available

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-287
    Improper AuthenticationMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Frequently Asked Questions

What is CVE-2021-28235?
Etcd-io Improper Authentication vulnerability This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2021-28235?
CVE-2021-28235 affects go.etcd.io/etcd/v3. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2021-28235 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-gmph-wf7j-9gcm
BIT-etcd-2021-28235

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