National Vulnerability Database (NVD) National Vulnerability Database (CVE-2012-4522)

Mission and Overview

NVD is the U.S. government repository of standards based vulnerability management data. This data enables automation of vulnerability management, security measurement, and compliance (e.g. FISMA).

Resource Status

NVD contains:

CVE Vulnerabilities: 56742
Checklists: 221
US-CERT Alerts: 246
US-CERT Vuln Notes: 2727
OVAL Queries: 8140
CPE Names: 73736

Last updated: Thu Jun 20 06:29:42 EDT 2013

CVE Publication rate: 11.87

Email List

NVD provides four mailing lists to the public. For information and subscription instructions please visit NVD Mailing Lists

Workload Index

Vulnerability Workload Index: 5.56

About Us

NVD is a product of the NIST Computer Security Division and is sponsored by the Department of Homeland Security's National Cyber Security Division. It supports the U.S. government multi-agency (OSD, DHS, NSA, DISA, and NIST) Information Security Automation Program. It is the U.S. government content repository for the Security Content Automation Protocol (SCAP).

NIST Security Configuration Checklists - CSD

National Cyber Awareness System

Vulnerability Summary for CVE-2012-4522

Original release date:11/24/2012

Last revised:05/04/2013

Source: US-CERT/NIST

Overview

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.

Impact

CVSS Severity (version 2.0):

CVSS v2 Base Score:5.0 (MEDIUM) (AV:N/AC:L/Au:N/C:N/I:P/A:N) (legend)

Impact Subscore: 2.9

Exploitability Subscore: 10.0

CVSS Version 2 Metrics:

Access Vector: Network exploitable

Access Complexity: Low

Authentication: Not required to exploit

Impact Type:Allows unauthorized modification

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

External Source: CONFIRM

Name: http://www.ruby-lang.org/en/news/2012/10/12/poisoned-NUL-byte-vulnerability/

Hyperlink:http://www.ruby-lang.org/en/news/2012/10/12/poisoned-NUL-byte-vulnerability/

External Source: MLIST

Name: [oss-security] 20121016 Re: CVE request: ruby file creation due in insertion of illegal NUL character

Hyperlink:http://www.openwall.com/lists/oss-security/2012/10/16/1

External Source: MLIST

Name: [oss-security] 20121013 Re: CVE request: ruby file creation due in insertion of illegal NUL character

Hyperlink:http://www.openwall.com/lists/oss-security/2012/10/13/1

External Source: MLIST

Name: [oss-security] 20121012 CVE request: ruby file creation due in insertion of illegal NUL character

Hyperlink:http://www.openwall.com/lists/oss-security/2012/10/12/6