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Vulnerability Details : CVE-2018-12029

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.
Publish Date : 2018-06-17 Last Update Date : 2018-10-21
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 362

- Products Affected By CVE-2018-12029

# Product Type Vendor Product Version Update Edition Language
1 OS Debian Debian Linux 8.0 Version Details Vulnerabilities
2 Application Phusion Passenger 3.0.0 Version Details Vulnerabilities
3 Application Phusion Passenger 3.0.1 Version Details Vulnerabilities
4 Application Phusion Passenger 3.0.2 Version Details Vulnerabilities
5 Application Phusion Passenger 3.0.3 Version Details Vulnerabilities
6 Application Phusion Passenger 3.0.4 Version Details Vulnerabilities
7 Application Phusion Passenger 3.0.5 Version Details Vulnerabilities
8 Application Phusion Passenger 3.0.6 Version Details Vulnerabilities
9 Application Phusion Passenger 3.0.7 Version Details Vulnerabilities
10 Application Phusion Passenger 3.0.8 Version Details Vulnerabilities
11 Application Phusion Passenger 3.0.9 Version Details Vulnerabilities
12 Application Phusion Passenger 3.0.10 Version Details Vulnerabilities
13 Application Phusion Passenger 3.0.11 Version Details Vulnerabilities
14 Application Phusion Passenger 3.0.12 Version Details Vulnerabilities
15 Application Phusion Passenger 3.0.13 Version Details Vulnerabilities
16 Application Phusion Passenger 3.0.14 Version Details Vulnerabilities
17 Application Phusion Passenger 3.0.15 Version Details Vulnerabilities
18 Application Phusion Passenger 3.0.17 Version Details Vulnerabilities
19 Application Phusion Passenger 3.0.18 Version Details Vulnerabilities
20 Application Phusion Passenger 3.0.19 Version Details Vulnerabilities
21 Application Phusion Passenger 3.0.20 Version Details Vulnerabilities
22 Application Phusion Passenger 4.0.1 Version Details Vulnerabilities
23 Application Phusion Passenger 4.0.2 Version Details Vulnerabilities
24 Application Phusion Passenger 4.0.3 Version Details Vulnerabilities
25 Application Phusion Passenger 4.0.4 Version Details Vulnerabilities
26 Application Phusion Passenger 4.0.5 Version Details Vulnerabilities
27 Application Phusion Passenger 4.0.6 Version Details Vulnerabilities
28 Application Phusion Passenger 4.0.36 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Debian Debian Linux 1
Phusion Passenger 27

- References For CVE-2018-12029
GENTOO GLSA-201807-02
MLIST [debian-lts-announce] 20180627 [SECURITY] [DLA 1399-1] ruby-passenger security update

- Metasploit Modules Related To CVE-2018-12029

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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