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OS X Local Root: Silly SUID Helper in Tunnel Blick

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Jason at zx2c4

Aug 11, 2012, 12:19 AM

Post #1 of 2 (185 views)
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OS X Local Root: Silly SUID Helper in Tunnel Blick

Tunnel Blick is a fun punching bag. Lots of possible exploits.

Lots of vulnerable SUID code:
http://code.google.com/p/tunnelblick/source/search?q=openvpnstart.m&origq=openvpnstart.m&btnG=Search+Trunk

One such exploit: http://git.zx2c4.com/Pwnnel-Blicker/tree/pwnnel-blicker.c

Bla bla demonstration: http://www.youtube.com/watch?v=T6PBfLgEGxM

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Jason at zx2c4

Aug 11, 2012, 8:06 AM

Post #2 of 2 (169 views)
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Re: OS X Local Root: Silly SUID Helper in Tunnel Blick [In reply to]

In case there was any debate over what I meant by "fun punching bag",
here's a shell script that gets root by a different vector:

http://git.zx2c4.com/Pwnnel-Blicker/tree/pwnnel-blicker-for-kids.sh
http://www.youtube.com/watch?v=8DUNWEzaL2U

You can also fool the program into loading arbitrary kernel modules,
among other things.

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