CVE-2019-16377 — Vulnerability in consul — CVE Details

CRITICAL

Consul gem insufficient authentication check - Multiple powers in one controller are not always checked correctly

Published September 27, 2019Updated February 16, 2024Source: osv

Summary

With the consul ruby gem before 1.0.3, if a controller checks multiple powers using `:if` or `:except` conditions, these conditions are erroneously applied to all power checks in that controller. This can lead to skipped power checks and hence unauthenticated access to certain controller actions.

Advisory Timeline

First published September 27, 2019 (2572 days ago).
Last revised February 16, 2024 — 1603 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Bundler

Update consul to 1.0.3 or later

gem install consul -v 1.0.3

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: rubygems (1).

Package	Ecosystem	Affected	Fixed In
consul	rubygems	0.1.0, 0.1.1, 0.1.2, 0.10.0 (+33 more)	1.0.3

Vulnerability Classification

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

CWE-284
View on MITRE

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-2019-16377?: Consul gem insufficient authentication check - Multiple powers in one controller are not always checked correctly 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-2019-16377?: CVE-2019-16377 affects consul. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2019-16377 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-8jhx-9gf4-hhf5

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