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Ruby Modules Common Name Verification Security Issues
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Secunia Advisory:
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SA26985
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Release Date:
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2007-10-02
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Last Update:
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2007-11-13
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Critical:
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Less critical
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Impact:
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Spoofing
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Where:
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From remote
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Solution Status:
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Vendor Workaround
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| Software: | Ruby 1.8.x
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| | CVE reference: | CVE-2007-5162 (Secunia mirror)
CVE-2007-5770 (Secunia mirror)
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Description:
Some security issues have been reported in Ruby, which can be exploited by malicious people to conduct spoofing attacks.
The security issues are caused due to the "net::https", "net::ftptls", "net::telnets", and "net::imap" modules not properly checking if the Common Name field provided inside SSL server certificates matches the requested hostname of a server. This can be exploited to conduct spoofing attacks.
Successful exploitation requires a MitM (Man-in-the-Middle) attack and possession of a valid certificate, which is signed by the CA specified in the client.
The security issues are reported in version 1.8.5 and 1.8.6.
Solution:
Fixed in SVN repository.
Provided and/or discovered by:
Chris Clark, iSEC Partners
Additionally affected modules reported by the vendor.
Changelog:
2007-11-13: Added "net::ftptls", "net::telnets", and "net::imap" as affected modules. Added CVE reference.
Original Advisory:
http://www.isecpartners.com/advisories/2007-006-rubyssl.txt
http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=13656
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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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7 Related Secunia Security Advisories
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1. Ruby WEBrick Information Disclosure
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2. Ruby WEBrick Information Disclosure Vulnerabilities
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3. Ruby Safe Level Security Bypass Vulnerabilities
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4. Ruby Safe-Level Security Bypass and Server Classes Denial of Service
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5. Ruby XMLRPC.iPIMethods Arbitrary Command Execution
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6. Ruby "cgi.rb" Denial of Service Vulnerability
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7. Ruby CGI Session Management Insecure File Creation Vulnerability
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