Описание
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.
Ссылки
- MitigationVendor Advisory
- Mailing ListThird Party Advisory
- Third Party Advisory
- Third Party Advisory
- MitigationVendor Advisory
- Mailing ListThird Party Advisory
- Third Party Advisory
- Third Party Advisory
Уязвимые конфигурации
EPSS
7 High
CVSS3
4.4 Medium
CVSS2
Дефекты
Связанные уязвимости
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.
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.
A race condition in the nginx module in Phusion Passenger 3.x through ...
Phusion Passenger Race Condition Allows Privilege Escalation
EPSS
7 High
CVSS3
4.4 Medium
CVSS2