Ruby Safe Level Access Control Bug Lets Applications Bypass Certain Access Controls
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SecurityTracker Alert ID: 1020656 |
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SecurityTracker URL: http://securitytracker.com/id/1020656
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CVE Reference:
CVE-2008-3655
(Links to External Site)
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Updated: Aug 13 2008
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Original Entry Date: Aug 12 2008
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Impact:
Disclosure of user information, Modification of user information
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): 1.8.5, 1.8.6-p286, 1.8.7-p71, and prior versions; 1.9 r18423 and prior revisions
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Description:
A vulnerability was reported in Ruby. An application can bypass certain safe level access restrictions.
An application running at safe level 4 can invoke the untrace_var() function.
An application running at safe level 4 can modify the $PROGRAM_NAME variable.
An application running at safe level 4 can perform syslog operations.
An application running at safe level 1 through 3 can invoke insecure methods.
Keita Yamaguchi reported these vulnerabilities.
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Impact:
A user can bypass safe level access control restrictions.
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Solution:
The vendor has issued a fix (1.8.6-p287, 1.8.7-p72), available at:
ftp://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.6-p287.tar.gz
ftp://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.7-p72.tar.gz
The vendor's advisory is available at:
http://www.ruby-lang.org/en/news/2008/08/08/multiple-vulnerabilities-in-ruby/
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Vendor URL: www.ruby-lang.org/en/news/2008/08/08/multiple-vulnerabilities-in-ruby/ (Links to External Site)
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Cause:
Access control error
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Underlying OS:
Linux (Any), UNIX (Any), Windows (Any)
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Message History:
This archive entry has one or more follow-up message(s) listed below.
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Source Message Contents
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Date: Mon, 11 Aug 2008 10:32:56 -0400
Subject: Ruby
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http://www.ruby-lang.org/en/news/2008/08/08/multiple-vulnerabilities-in-ruby/
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