CVE-2018-12029
CVSS V2 Medium 4.4
CVSS V3 High 7
Description
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.
Overview
- CVE ID
- CVE-2018-12029
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2018-06-17T20:29:00
- Last Modified Date
- 2019-03-08T14:12:01
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:phusion:passenger:*:*:*:*:*:*:*:* | 1 | OR | 3.0.0 | 5.3.2 |
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:M/Au:N/C:P/I:P/A:P
- Access Vector
- LOCAL
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 4.4
- Severity
- MEDIUM
- Exploitability Score
- 3.4
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- HIGH
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 7
- Base Severity
- HIGH
- Exploitability Score
- 1
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://pulsesecurity.co.nz/advisories/phusion-passenger-priv-esc | Third Party Advisory |
| 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://security.gentoo.org/glsa/201807-02 | Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2018-12029 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12029 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:56:19 | Added to TrackCVE | |||
| 2022-12-03 08:11:16 | 2018-06-17T20:29Z | 2018-06-17T20:29:00 | CVE Published Date | updated |
| 2022-12-03 08:11:16 | 2019-03-08T14:12:01 | CVE Modified Date | updated | |
| 2022-12-03 08:11:16 | Analyzed | Vulnerability Status | updated |