PT-2018-10949 · Phusion · Phusion Passenger

Published 2018-06-17 · Updated 2022-05-14 · CVE-2018-12026

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Phusion Passenger versions 5.3.x through 5.3.1

Description The issue allows malicious Passenger-managed applications to replace key files or directories in the spawning communication directory with symlinks during the spawning process. This can result in arbitrary reads and writes, leading to information disclosure and privilege escalation.

Recommendations For Phusion Passenger versions 5.3.x through 5.3.1, update to version 5.3.2 or later to resolve the issue.

Exploit

Fix

Link Following

Weakness Enumeration

CWE-59

Related Identifiers

CVE-2018-12026

GHSA-7CV3-GVMC-8MQ5

OPENSUSE-SU-2024:11341-1

Affected Products

Phusion Passenger

References · 13

• 🔥 https://github.com/rubysec/ruby-advisory-db/blob/master/gems/passenger/CVE-2018-12026.yml · Exploit
• https://ubuntu.com/security/CVE-2018-12026 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-12026 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2018-12026 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2018-12026 · Security Note
• https://security.gentoo.org/glsa/201807-02 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-7cv3-gvmc-8mq5 · Vendor Advisory
• https://blog.phusion.nl/passenger-5-3-2 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-12026 · Security Note
• https://github.com/phusion/passenger · Note
• https://github.com/phusion/passenger/commit/fd3717a3cd357aa0e80e1e81d4dc94a1eaf928f1 · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12026 · Note
• https://blog.phusion.nl/2018/06/12/passenger-5-3-2-various-security-fixes · Note