CVE-2018-12028 — Incorrect Access Control in passenger — CVE Details

HIGH

Incorrect Access Control in Phusion Passenger

Published May 13, 2022Updated February 16, 2024Source: osv

Summary

An Incorrect Access Control vulnerability in SpawningKit in Phusion Passenger 5.3.x before 5.3.2 allows a Passenger-managed malicious application, upon spawning a child process, to report an arbitrary different PID back to Passenger's process manager. If the malicious application then generates an error, it would cause Passenger's process manager to kill said reported arbitrary PID.

Advisory Timeline

First published May 13, 2022 (1613 days ago).
Last revised February 16, 2024 — 644 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Bundler

Update passenger to 5.3.2 or later

gem install passenger -v 5.3.2

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
passenger	rubygems	5.3.0, 5.3.1	5.3.2

Vulnerability Classification

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

CWE-732
Incorrect Permission AssignmentMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 7.8 score means for each attack dimension.

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

Frequently Asked Questions

What is CVE-2018-12028?: Incorrect Access Control in Phusion Passenger This vulnerability has been assigned a severity rating of HIGH (CVSS score: 7.8/10).
How do I check if my project is affected by CVE-2018-12028?: CVE-2018-12028 affects passenger. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2018-12028 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score

7.8

High exploitability or significant impact. Prioritize remediation within days.

Also Known As

GHSA-jjhj-8gx7-x836

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