Ruby "cgi.rb" Denial of Service Vulnerability - Advisories

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Ruby "cgi.rb" Denial of Service Vulnerability

Secunia Advisory:	SA13123
Release Date:	2004-11-08
Last Update:	2006-12-12

Critical:	Less critical
Impact:	DoS
Where:	From remote
Solution Status:	Vendor Patch

Software:	Ruby 1.8.x

CVE reference:	CVE-2004-0983 (Secunia mirror) CVE-2006-5467 (Secunia mirror) CVE-2006-6303 (Secunia mirror)

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Description: Two vulnerabilities have been reported in Ruby, which can be exploited by malicious people to cause a DoS (Denial of Service). 1) An input validation error in "cgi.rb" can be exploited to consume a large amount of CPU resources by sending a specially crafted HTTP POST request. 2) An unspecified error in "cgi.rb" when handling certain HTTP requests can be exploited to consume a large amount of CPU resources by sending a specially crafted HTTP request. Do you have this product installed on your home computer? Scan using the free Personal Software Inspector. Check if a vulnerable version is installed on computers in your corporate network, scan using the Network Software Inspector. Solution: Update to 1.8.5-p2. Provided and/or discovered by: Reported by vendor. Changelog: 2006-10-27: Previous patch is incomplete. Updated "Solution" section, added new link and CVE reference. 2006-12-04: Updated "Solution" section. Added information on second vulnerability. 2006-12-12: Added CVE reference. Original Advisory: Ruby: http://www.ruby-lang.org/en/news/2006/11/03/CVE-2006-5467/ http://www.ruby-lang.org/en/news/2006...her-dos-vulnerability-in-cgi-library/ http://www.debian.org/security/2004/dsa-586 http://rubyforge.org/pipermail/mongrel-users/2006-October/001946.html Other References: JVN: http://jvn.jp/jp/JVN%2384798830/index.html



Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise. Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.

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