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Re: SolusVM WHMCS module privilege escalation, also libcurl vuln?
From: Źmicier Januszkiewicz <gauri () tut by>
Date: Mon, 24 Jun 2013 15:05:56 +0200

Why, hello there.

it appears to be a result of a vulnerability - or at the very least
weakness - in the implementation of libcurl; in particular, weak randomness
in generating the form boundary.

Is the boundary value generation required to be cryptographically strong?
It does not come as a requirement as far as I know.

The application itself has to perform proper input sanitation on ALL of its
inputs coming from outside. For some reason, it is always libraries that
are blamed for application flaws.


2013/6/24 Sven Slootweg <admin () cryto net>

Ran across a new post on a blog I frequently visit:
http://localhost.re/p/solusvm-whmcs-module-316-vulnerability

It describes a privilege escalation vulnerability in the WHMCS module for
SolusVM that basically lets you do anything, but if I'm reading it
correctly, it appears to be a result of a vulnerability - or at the very
least weakness - in the implementation of libcurl; in particular, weak
randomness in generating the form boundary.

Thoughts?

Note: I'm not the author of this exploit (it's actually quite a bit beyond
my capabilities), I just ran across it and decided to post here since it
doesn't seem to be discussed anywhere. Just to avoid people making
incorrect assumptions... again :)

- Sven Slootweg

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_______________________________________________
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Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/

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