mailing list archives
Re: Local suid files and buffer overflows
From: Pieter de Boer <pieter () thedarkside nl>
Date: Sun, 09 Oct 2005 18:29:28 +0200
Werner Schalk wrote:
Now I exploited it using Aleph One's shellcode (see
http://shellcode.org/shellcode/linux/null-free/) but I won't get a SUID
shell afterwards (I know the exploit did work but I still have my normal
user privleges). Why? I have tried a different shellcode to write a file
and this file was root:root. Any ideas, hints, rtfm?
Some shells (at least bash, that I know of) drop privileges when uid !=
euid. That's why I 'always' use zsh, which doesn't do that ;)
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