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CVE-2018-12029

Published: Jun 17, 2018Updated: Nov 21, 2024 Sources: CVE List NVD GHSA BDUCWE-362
NVD MITRE
7.0CVSSHIGH
EPSS Score
0.3%
Top 80.9%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:LAC:HPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-362

Affected Products

passengerphusion
On-prem
OSS Libraries / web-framework
debian linuxdebian
On-premOS
Operating Systems / linux-distro
passengerRubyGemsOSS Libraries
Astra Linux Special EditionООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
phusioncommercialOSS Librariesaka passenger, juvia
debianoss-projectGBOperating Systemsaka debian gnu/linux
rubygemspackage-ecosystemOSS Libraries
ооо «русбитех-астра»commercialRUOperating Systemsaka rusbitech-astra
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
and 2 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available
Workaround Available

MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

https://blog.phusion.nl/passenger-5-3-2
blog.phusion.nl
https://lists.debian.org/debian-lts-announce/2018/06/msg00007.html
lists.debian.org
https://pulsesecurity.co.nz/advisories/phusion-passenger-priv-esc
pulsesecurity.co.nz
and 6 more references View all →

Timeline

Published
Jun 17, 2018
Last Updated
Nov 21, 2024

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