oss-security - Re: CVE request - phpCAS: prevent symlink attacks, directory traversal and XSS during a proxy callback

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Date: Fri, 1 Oct 2010 15:33:42 -0400 (EDT)
From: Josh Bressers <bressers@...hat.com>
To: oss-security@...ts.openwall.com
Cc: coley <coley@...re.org>
Subject: Re: CVE request - phpCAS: prevent symlink attacks,
 directory traversal and XSS during a proxy callback

Sorry for the delay:

CVE-2010-3690 phpCAS: XSS during a proxy callback
CVE-2010-3691 phpCAS: prevent symlink attacks during a proxy callback
CVE-2010-3692 phpCAS: directory traversal during a proxy callback

Thanks.

-- 
    JB


----- "Joachim Fritschi" <fritschi@....tu-darmstadt.de> wrote:

> Reported by Raphael Geissert almost 2 years ago but never really made
> it 
> into the upstream code:
> 
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=495542#82
> 
> In phpCAS proxy mode the parameters submitted during a callback to the
> 
> callback() function are not properly sanatized. The parameters are
> used 
> as file handles for filesystem access and parameters in urls.
> This allows an attacker symlink attacks, directory traversal attacks
> and 
> XSS attacks. The issue has been fixed and patches are available:
> 
> https://issues.jasig.org/browse/PHPCAS-80
> https://developer.jasig.org/source/changelog/jasigsvn?cs=21538
> 
> A new 1.1.3 release which contains the patch and various other
> bugfixes 
> will be released within the next few days.
> 
> Cheers,
> 
> Joachim

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