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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2018-06-17T20:00:00

Updated: 2024-08-05T08:24:03.642Z

Reserved: 2018-06-07T00:00:00

Link: CVE-2018-12029

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2018-06-17T20:29:00.493

Modified: 2019-03-08T14:12:01.947

Link: CVE-2018-12029

cve-icon Redhat

Severity : Important

Publid Date: 2018-06-05T00:00:00Z

Links: CVE-2018-12029 - Bugzilla