CVE-2013-4136
First published: Mon Sep 30 2013(Updated: )
ext/common/ServerInstanceDir.h in Phusion Passenger gem before 4.0.6 for Ruby allows local users to gain privileges or possibly change the ownership of arbitrary directories via a symlink attack on a directory with a predictable name in /tmp/.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Phusion Passenger | <=4.0.5 | |
| Phusion Passenger | =4.0.1 | |
| Phusion Passenger | =4.0.2 | |
| Phusion Passenger | =4.0.3 | |
| Phusion Passenger | =4.0.4 | |
| Ruby |
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Reference Links
- http://rhn.redhat.com/errata/RHSA-2013-1136.html
- http://www.openwall.com/lists/oss-security/2013/07/16/6
- https://code.google.com/p/phusion-passenger/issues/detail?id=910
- https://github.com/phusion/passenger/blob/release-4.0.6/NEWS
- https://github.com/phusion/passenger/commit/5483b3292cc2af1c83033eaaadec20dba4dcfd9b
Frequently Asked Questions
What is the severity of CVE-2013-4136?
CVE-2013-4136 has a medium severity level due to its potential for local privilege escalation via symlink attacks.
How do I fix CVE-2013-4136?
To fix CVE-2013-4136, upgrade Phusion Passenger to version 4.0.6 or later.
Who is affected by CVE-2013-4136?
CVE-2013-4136 affects users of Phusion Passenger versions before 4.0.6.
What is the impact of CVE-2013-4136?
The impact of CVE-2013-4136 includes the potential for local users to gain elevated privileges and change ownership of arbitrary directories.
Is CVE-2013-4136 exploitable on all systems?
CVE-2013-4136 is exploitable on systems where Phusion Passenger is installed and configured insecurely.
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/last-modified-date
- agent/references
- agent/author
- agent/weakness
- agent/event
- agent/description
- agent/first-publish-date
- agent/source
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/phusion
- canonical/phusion passenger
- version/phusion passenger/4.0.5
- version/phusion passenger/4.0.1
- version/phusion passenger/4.0.2
- version/phusion passenger/4.0.3
- version/phusion passenger/4.0.4
- vendor/ruby-lang
- canonical/ruby