Upstream information

CVE-2018-12029 at MITRE

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.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 4.4
Vector AV:L/AC:M/Au:N/C:P/I:P/A:P
Access Vector Local
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 7 8.1
Vector AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Access Vector Local Network
Access Complexity High High
Privileges Required Low None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact High High
Integrity Impact High High
Availability Impact High High
SUSE Bugzilla entries: 1097655 [RESOLVED / UPSTREAM], 1097663 [RESOLVED / FIXED], 1097664 [RESOLVED / DUPLICATE]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise Module for Containers 12
  • ruby2.1-rubygem-passenger >= 5.0.18-12.9.1
  • rubygem-passenger >= 5.0.18-12.9.1
  • rubygem-passenger-apache2 >= 5.0.18-12.9.1
Patchnames:
SUSE-SLE-Module-Containers-12-2018-1373


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
SUSE Lifecycle Management Server 1.3 rubygem-passenger Ignore
SUSE Linux Enterprise Module for Containers 12 rubygem-passenger Released
SUSE Studio Onsite 1.3 rubygem-passenger Ignore