CWE Code: 362
Vulnerability Type: privilege_escalation
CVSS Score: 4.4
CWE Name:  Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Summary: 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.
Access Authentication: NONE
Access Complexity: MEDIUM
Access Vector: LOCAL
Impact (C/I/A): PARTIAL/PARTIAL/PARTIAL
Published Date: 2018-06-17
Last Modified Date: 2019-03-08