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Last updated: 3/30/2015 9:21:36 AM

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National Cyber Awareness System

Vulnerability Summary for CVE-2011-1004

Original release date: 03/02/2011
Last revised: 05/11/2012


The FileUtils.remove_entry_secure method in Ruby 1.8.6 through 1.8.6-420, 1.8.7 through 1.8.7-330, 1.8.8dev, 1.9.1 through 1.9.1-430, 1.9.2 through 1.9.2-136, and 1.9.3dev allows local users to delete arbitrary files via a symlink attack.


CVSS Severity (version 2.0):
CVSS v2 Base Score: 6.3 (MEDIUM) (AV:L/AC:M/Au:N/C:N/I:C/A:C) (legend)
Impact Subscore: 9.2
Exploitability Subscore: 3.4
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows unauthorized modification; Allows disruption of service

References to Advisories, Solutions, and Tools

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External Source: CONFIRM
Name: http://support.apple.com/kb/HT5281
External Source: FEDORA
Name: FEDORA-2011-1913
External Source: MLIST
Name: [oss-security] 20110221 CVE request: ruby: FileUtils is vulnerable to symlink race attacks + Exception methods can bypass $SAFE
Type: Patch Information
External Source: REDHAT
Name: RHSA-2011:0909
External Source: OSVDB
Name: 70958
External Source: CONFIRM
Name: http://www.ruby-lang.org/en/news/2011/02/18/fileutils-is-vulnerable-to-symlink-race-attacks/
Type: Advisory; Patch Information
External Source: APPLE
Name: APPLE-SA-2012-05-09-1
External Source: CONFIRM
Name: https://bugzilla.redhat.com/show_bug.cgi?id=678913
Type: Patch Information
External Source: MANDRIVA
Name: MDVSA-2011:097
External Source: MLIST
Name: [oss-security] 20110221 Re: CVE request: ruby: FileUtils is vulnerable to symlink race attacks + Exception methods can bypass $SAFE
Type: Patch Information
External Source: FEDORA
Name: FEDORA-2011-1876
External Source: BID
Name: 46460
External Source: VUPEN
Name: ADV-2011-0539
External Source: REDHAT
Name: RHSA-2011:0910

Technical Details

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