Re: question on escalating privileges via suid vulnerabilities

["John McGuire" <jmcguire81 () gmail com>]

Thanks, adding setuid() cleared up the issue.

John

On 2/25/07, Michal Zalewski <lcamtuf () dione ids pl> wrote:
> On Sat, 24 Feb 2007, John McGuire wrote:
>
> >        arr[1] = NULL;
>          setuid(0);
> >        execve (arr[0], arr, NULL);
>
> Just add this line there. You are in all likelihood bumping into a
> "protection"  built into /bin/sh to make attacks marginally more
> difficult.
>
> /mz

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