A race condition in the nginx module in Phusion Passenger 3.x through 5.x before 5.3.2 allows local escalation of privileges when a non-standard passenger_instance_registry_dir with insufficiently strict permissions is configured. Replacing a file with a symlink after the file was created, but before it was chowned, leads to the target of the link being chowned via the path. Targeting sensitive files such as root's crontab file allows privilege escalation.
References
Link | Resource |
---|---|
https://blog.phusion.nl/passenger-5-3-2 | Mitigation Vendor Advisory |
https://lists.debian.org/debian-lts-announce/2018/06/msg00007.html | Mailing List Third Party Advisory |
https://pulsesecurity.co.nz/advisories/phusion-passenger-priv-esc | Third Party Advisory |
https://security.gentoo.org/glsa/201807-02 | Third Party Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: mitre
Published: 2018-06-17T20:00:00
Updated: 2018-10-21T09:57:02
Reserved: 2018-06-07T00:00:00
Link: CVE-2018-12029
JSON object: View
NVD Information
Status : Analyzed
Published: 2018-06-17T20:29:00.493
Modified: 2019-03-08T14:12:01.947
Link: CVE-2018-12029
JSON object: View
Redhat Information
No data.
CWE