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Last updated: 4/29/2016 5:34:32 AM

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National Cyber Awareness System

Vulnerability Summary for CVE-2008-3655

Original release date: 08/12/2008
Last revised: 03/07/2011
Source: US-CERT/NIST

Overview

Ruby 1.8.5 and earlier, 1.8.6 through 1.8.6-p286, 1.8.7 through 1.8.7-p71, and 1.9 through r18423 does not properly restrict access to critical variables and methods at various safe levels, which allows context-dependent attackers to bypass intended access restrictions via (1) untrace_var, (2) $PROGRAM_NAME, and (3) syslog at safe level 4, and (4) insecure methods at safe levels 1 through 3.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 7.5 HIGH
Impact Subscore: 6.4
Exploitability Subscore: 10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

References to Advisories, Solutions, and Tools

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External Source: FEDORA
Name: FEDORA-2008-8738
External Source: CONFIRM
Name: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=494401
External Source: VUPEN
Name: ADV-2009-1297
Type: Advisory; Patch Information
External Source: DEBIAN
Name: DSA-1651
Type: Patch Information
External Source: OVAL
Name: oval:org.mitre.oval:def:11602
External Source: APPLE
Name: APPLE-SA-2009-05-12
External Source: FEDORA
Name: FEDORA-2008-8736
External Source: CONFIRM
Name: http://support.avaya.com/elmodocs2/security/ASA-2008-424.htm
External Source: UBUNTU
Name: USN-651-1
External Source: CONFIRM
Name: http://www.ruby-lang.org/en/news/2008/08/08/multiple-vulnerabilities-in-ruby/
External Source: REDHAT
Name: RHSA-2008:0897
External Source: BUGTRAQ
Name: 20080831 rPSA-2008-0264-1 ruby
External Source: CONFIRM
Name: http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0264
External Source: DEBIAN
Name: DSA-1652
External Source: CONFIRM
Name: http://support.apple.com/kb/HT3549
External Source: VUPEN
Name: ADV-2008-2334
Type: Advisory
External Source: SECTRACK
Name: 1020656
External Source: BID
Name: 30644
Type: Patch Information; Exploit
External Source: REDHAT
Name: RHSA-2008:0895
External Source: XF
Name: ruby-safelevel-security-bypass(44369)
External Source: GENTOO
Name: GLSA-200812-17
US-CERT Vulnerability Note: CERT
Name: TA09-133A

References to Check Content

Identifier: oval:org.mitre.oval:def:11602
Check System: http://oval.mitre.org/XMLSchema/oval-definitions-5

Vulnerable software and versions

+ Configuration 1
+ OR
cpe:/a:ruby-lang:ruby:1.6.8
cpe:/a:ruby-lang:ruby:1.8.0
cpe:/a:ruby-lang:ruby:1.8.1
cpe:/a:ruby-lang:ruby:1.8.1:-9
cpe:/a:ruby-lang:ruby:1.8.2
cpe:/a:ruby-lang:ruby:1.8.2:preview2
cpe:/a:ruby-lang:ruby:1.8.2:preview3
cpe:/a:ruby-lang:ruby:1.8.2:preview4
cpe:/a:ruby-lang:ruby:1.8.3
cpe:/a:ruby-lang:ruby:1.8.3:preview1
cpe:/a:ruby-lang:ruby:1.8.3:preview2
cpe:/a:ruby-lang:ruby:1.8.3:preview3
cpe:/a:ruby-lang:ruby:1.8.4
cpe:/a:ruby-lang:ruby:1.8.4:preview1
cpe:/a:ruby-lang:ruby:1.8.4:preview2
cpe:/a:ruby-lang:ruby:1.8.4:preview3
cpe:/a:ruby-lang:ruby:1.8.5:p11
cpe:/a:ruby-lang:ruby:1.8.5:p113
cpe:/a:ruby-lang:ruby:1.8.5:p115
cpe:/a:ruby-lang:ruby:1.8.5:p12
cpe:/a:ruby-lang:ruby:1.8.5:p2
cpe:/a:ruby-lang:ruby:1.8.5:p35
cpe:/a:ruby-lang:ruby:1.8.5:preview1
cpe:/a:ruby-lang:ruby:1.8.5:preview2
cpe:/a:ruby-lang:ruby:1.8.5:preview3
cpe:/a:ruby-lang:ruby:1.8.5:preview4
cpe:/a:ruby-lang:ruby:1.8.5:preview5
cpe:/a:ruby-lang:ruby:1.8.6
cpe:/a:ruby-lang:ruby:1.8.6:p110
cpe:/a:ruby-lang:ruby:1.8.6:p114
cpe:/a:ruby-lang:ruby:1.8.6:preview1
cpe:/a:ruby-lang:ruby:1.8.6:preview2
cpe:/a:ruby-lang:ruby:1.8.6:preview3
cpe:/a:ruby-lang:ruby:1.8.7
cpe:/a:ruby-lang:ruby:1.8.7:p17
cpe:/a:ruby-lang:ruby:1.8.7:p22
cpe:/a:ruby-lang:ruby:1.8.7:p71
cpe:/a:ruby-lang:ruby:1.8.7:preview1
cpe:/a:ruby-lang:ruby:1.8.7:preview2
cpe:/a:ruby-lang:ruby:1.8.7:preview3
cpe:/a:ruby-lang:ruby:1.8.7:preview4
cpe:/a:ruby-lang:ruby:1.9.0
cpe:/a:ruby-lang:ruby:1.8.5 and previous versions
cpe:/a:ruby-lang:ruby:1.8.6:p286
cpe:/a:ruby-lang:ruby:1.8.6:p230
cpe:/a:ruby-lang:ruby:1.8.6:p36
cpe:/a:ruby-lang:ruby:1.8.6:p111

* Denotes Vulnerable Software
Changes related to vulnerability configurations

Technical Details

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