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Insecure Library Loading
Not critical

Perl FCGI Module CGI::Fast API Environment Variables Security Bypass

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Release Date:  2011-10-03    Views:  1,759

Secunia Advisory SA46263

Where:

From remote

Impact:

Security Bypass, Exposure of sensitive information

Solution Status:

Vendor Patch

CVE Reference(s):

Description


A security issue has been reported in the FCGI module for Perl, which can be exploited by malicious people to bypass certain security restrictions.

The security issue is caused due to the CGI::Fast API not properly resetting environment variables, which can be exploited to leak information (e.g. authentication credentials) from the second request into subsequent requests, if the first request had an empty environment.

Note: Successful exploitation requires that the deprecated CGI::Fast API is used.

The security issue is reported in versions 0.7x prior to 0.74.


Solution:
Update to version 0.74.

Provided and/or discovered by:
Reported in a bug by ssinyagin.

Original Advisory:
http://cpansearch.perl.org/src/FLORA/FCGI-0.74/ChangeLog
https://rt.cpan.org/Public/Bug/Display.html?id=68380
http://git.shadowcat.co.uk/gitweb/gitweb.cgi?p=catagits/fcgi2.git;a=commitdiff;h=297693dc8362d25bb25e473899c72508a0f71d2e

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Perl FCGI Module CGI::Fast API Environment Variables Security Bypass

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