Vulnerability Report

CVE-2013-4136

Title: Ruby-Lang Ruby Auth Bypass

Auth Bypass

Proof Of Concept

No public PoC currently indexed for CVE-2013-4136.

CWE Category CWE-59
Published Date Sep 30, 2013
Modified Date Apr 29, 2026
Exploit Status Not Found
Score 4.4 CVSS v2.0
Exploit Probability (EPSS)
0.04%

Vulnerability Summary

CVE-2013-4136: 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/.

Impacted Vendors

Y
yukihiro_matsumoto 1
R
ruby-lang 1
P
phusion 1

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 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
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
4.4
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:L/AC:M/Au:N/C:P/I:P/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2013-4136 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector N/A
Complexity N/A
Privileges N/A
Interaction NONE
CVSS Vector String AV:L/AC:M/Au:N/C:P/I:P/A:P

Affected Stack

No specific products linked.