oss-security - Re: CVE Request -- Python-Mako (prior v0.3.4): Improper escaping of single quotes in escape.cgi (XSS)

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Date: Wed, 30 Jun 2010 15:28:48 -0400 (EDT)
From: Josh Bressers <bressers@...hat.com>
To: oss-security@...ts.openwall.com
Cc: David Malcolm <dmalcolm@...hat.com>, Kyle VanderBeek <kylev@...ev.com>,
        "Steven M. Christey" <coley@...us.mitre.org>
Subject: Re: CVE Request -- Python-Mako (prior v0.3.4):
 Improper escaping of single quotes in escape.cgi (XSS)

Please use CVE-2010-2480

Thanks.

-- 
    JB


----- "Jan Lieskovsky" <jlieskov@...hat.com> wrote:

> Hi Steve, vendors,
> 
>    Craig Younkins reported:
>      [1] http://bugs.python.org/issue9061
> 
>    that Python Mako (of versions prior v0.3.4), a template library
> written in Python,
>    improperly escaped single quotes in escape.cgi. An attacker could
> use this flaw to conduct
>    cross-site scripting (XSS) attacks.
> 
>    References:
>      [2] http://www.makotemplates.org/CHANGES
> 
> Sample public PoC (from [1]):
> 
>    Proof of concept:
>    print """<body class='%s'></body>""" % cgi.escape("'
> onload='alert(1);'
> bad='")
> 
> Could you allocate a CVE id for this?
> 
> Thanks && Regards, Jan.
> --
> Jan iankko Lieskovsky / Red Hat Security Response Team

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