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Re: [Full-disclosure] New Source Code Vulnerability Scanner (Free 30 Day Trial)
- To: Michal Zalewski <lcamtuf@xxxxxxxxxxx>
- Subject: Re: [Full-disclosure] New Source Code Vulnerability Scanner (Free 30 Day Trial)
- From: Georgi Guninski <guninski@xxxxxxxxxxxx>
- Date: Sat, 4 Dec 2010 13:32:46 +0200
On Fri, Dec 03, 2010 at 01:46:56AM -0800, Michal Zalewski wrote:
> > grep -r ACIDBITCHES *
>
> This code has two very obvious detection bypass vulnerabilities:
>
> 1) It fails to scan dotfiles in the starting directory,
>
> 2) It can be tricked into not producing any output by creating a file
> named "-q" in the starting dir.
>
> Let me fire up my vulnerability research whitepaper generator.
>
> /mz
>
implementation issues aside, are the theoretic foundations of the scanner
correct?
some points.
1. analyzing the grep(1) codebase. what if grep has anti-scanning backdoor -
like a compiler backdoor?
2. the scanner reproducibly reports backdoors in /dev/urandom - it is
even not an .EXE!
--
joro
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