phusion/passenger · Security
Phusion Passenger SpawningKit Contains Arbitrary Read/Write Vulnerability
- GHSA ID
- GHSA-7cv3-gvmc-8mq5
- CVE ID
- CVE-2018-12026
- Severity
- critical
- Published
- Updated
- CVSS
- 9.8 · CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS v3
- 9.8 · CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
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.
CWEs
- CWE-59 · Improper Link Resolution Before File Access ('Link Following')
References
- https://nvd.nist.gov/vuln/detail/CVE-2018-12026 ↗
- https://blog.phusion.nl/passenger-5-3-2 ↗
- https://security.gentoo.org/glsa/201807-02 ↗
- https://blog.phusion.nl/2018/06/12/passenger-5-3-2-various-security-fixes/ ↗
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/passenger/CVE-2018-12026.yml ↗
- https://github.com/phusion/passenger/commit/fd3717a3cd357aa0e80e1e81d4dc94a1eaf928f1 ↗
- https://github.com/advisories/GHSA-7cv3-gvmc-8mq5 ↗