CVE-2018-12027 Information

Description

An Insecure Permissions vulnerability in SpawningKit in Phusion Passenger 5.3.x before 5.3.2 causes information disclosure in the following situation: given a Passenger-spawned application process that reports that it listens on a certain Unix domain socket if any of the parent directories of said socket are writable by a normal user that is not the application’s user then that non-application user can swap that directory with something else resulting in traffic being redirected to a non-application user’s process through an alternative Unix domain socket.

CVSS Vector

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

Reference

https://blog.phusion.nl/passenger-5-3-2 https://security.gentoo.org/glsa/201807-02

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8