CVE-2018-12029
Phusion Passenger Race Condition Allows Privilege Escalation
7.0
HIGH
CVSS 3.1
EPSS 0.28%
描述
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.
如何修補 CVE-2018-12029
要修補 CVE-2018-12029,請將受影響套件升級到下列已修補版本。
- —升級至 5.0.30-1.1 或更新版本
- —升級至 5.3.2 或更新版本
CVE-2018-12029 正在被利用嗎?
低 — EPSS 為 0.3%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- from 0, < 5.0.30-1.1
- >= 3.0.0, < 5.3.2
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.0 | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |