CRITICAL9.8
GHSA-7cv3-gvmc-8mq5
Phusion Passenger SpawningKit Contains Arbitrary Read/Write Vulnerability
Quick fix
GHSA-7cv3-gvmc-8mq5 — passenger: upgrade to the fixed version with the command below.
bundle update passengerDetails
During the spawning of a malicious Passenger-managed application, SpawningKit in Phusion Passenger 5.3.x before 5.3.2 allows such applications to replace key files or directories in the spawning communication directory with symlinks. This then could result in arbitrary reads and writes, which in turn can result in information disclosure and privilege escalation.
Are you affected?
Enter the version of the package you're using.
Affected packages
References
- https://nvd.nist.gov/vuln/detail/CVE-2018-12026[ADVISORY]
- https://github.com/phusion/passenger/commit/fd3717a3cd357aa0e80e1e81d4dc94a1eaf928f1[WEB]
- https://blog.phusion.nl/2018/06/12/passenger-5-3-2-various-security-fixes[WEB]
- https://blog.phusion.nl/passenger-5-3-2[WEB]
- https://github.com/phusion/passenger[PACKAGE]
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/passenger/CVE-2018-12026.yml[WEB]
- https://security.gentoo.org/glsa/201807-02[WEB]