Ruby 1.9.3/2.0.0 file.c rb_get_path_check access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

A vulnerability classified as critical was found in Ruby 1.9.3/2.0.0 (Programming Language Software). This vulnerability affects the function rb_get_path_check of the file file.c. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect integrity. CVE summarizes:

The rb_get_path_check function in file.c in Ruby 1.9.3 before patchlevel 286 and Ruby 2.0.0 before r37163 allows context-dependent attackers to create files in unexpected locations or with unexpected names via a NUL byte in a file path.

The weakness was released 11/24/2012 by Peter Bex (Website). The advisory is available at ruby-lang.org. This vulnerability was named CVE-2012-4522 since 08/21/2012. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 62648 (Fedora 17 : ruby-1.9.3.286-18.fc17 (2012-16086)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 120948 (CentOS Security Update for Ruby (CESA-2013:0129)).

Upgrading to version 2.0.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (62648). Entries connected to this vulnerability are available at VDB-1228, VDB-29551, VDB-95758 and VDB-105282.

Productinfo

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Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 62648
Nessus Name: Fedora 17 : ruby-1.9.3.286-18.fc17 (2012-16086)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 72614
OpenVAS Name: FreeBSD Ports: ruby
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Ruby 2.0.0

Timelineinfo

08/21/2012 🔍
10/18/2012 +58 days 🔍
10/18/2012 +0 days 🔍
10/22/2012 +4 days 🔍
10/22/2012 +0 days 🔍
11/24/2012 +33 days 🔍
11/24/2012 +0 days 🔍
03/24/2015 +850 days 🔍
12/20/2021 +2463 days 🔍

Sourcesinfo

Advisory: RHSA-2013:0129
Researcher: Peter Bex
Status: Not defined
Confirmation: 🔍

CVE: CVE-2012-4522 (🔍)
OVAL: 🔍

Vulnerability Center: 36794 - Ruby 1.9.3-p286 Local Unintended File Creation due to NUL Characters in the File Name, Low
SecurityFocus: 56115 - Ruby CVE-2012-4522 Local File Creation Vulnerability

See also: 🔍

Entryinfo

Created: 03/24/2015 12:22
Updated: 12/20/2021 14:20
Changes: 03/24/2015 12:22 (68), 04/20/2017 10:02 (6), 12/20/2021 14:18 (3), 12/20/2021 14:20 (1)
Complete: 🔍
Cache ID: 18:0C1:103

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