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Last updated: 10/25/2014 12:45:12 PM

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National Cyber Awareness System

Vulnerability Summary for CVE-2011-1005

Original release date: 03/02/2011
Last revised: 08/13/2013
Source: US-CERT/NIST

Overview

The safe-level feature in Ruby 1.8.6 through 1.8.6-420, 1.8.7 through 1.8.7-330, and 1.8.8dev allows context-dependent attackers to modify strings via the Exception#to_s method, as demonstrated by changing an intended pathname.

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

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External Source: SECUNIA
Name: 43420
External Source: CONFIRM
Name: https://bugzilla.redhat.com/show_bug.cgi?id=678920
Type: Patch Information
External Source: FEDORA
Name: FEDORA-2011-1876
External Source: OSVDB
Name: 70957
External Source: SECUNIA
Name: 43573
External Source: APPLE
Name: APPLE-SA-2012-05-09-1
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-2011-1913
External Source: VUPEN
Name: ADV-2011-0539
External Source: MANDRIVA
Name: MDVSA-2011:098
External Source: CONFIRM
Name: http://support.apple.com/kb/HT5281
External Source: CONFIRM
Name: http://www.ruby-lang.org/en/news/2011/02/18/exception-methods-can-bypass-safe/
Type: Advisory; Patch Information; Exploit
External Source: REDHAT
Name: RHSA-2011:0908
External Source: BID
Name: 46458
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-2011:0910
External Source: REDHAT
Name: RHSA-2011:0909

Technical Details

Vulnerability Type (View All)
  • Permissions, Privileges, and Access Control (CWE-264)