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by Nux 4783 days ago
It's a great day to have kmod-tpe[1] installed. Having said that, after I rmmod-ed tpe the exploit still failed (I'm on 2.6.32-358.6.1.el6.x86_64):

./semtex 2.6.37-3.x x86_64 sd@fucksheep.org 2010 semtex: semtex.c:81: main: Assertion `p = memmem(code, 1024, &needle, 8)' failed. Aborted

[1] - http://elrepo.org/tiki/kmod-tpe

LE: exploit needs to be compiled with -O2 flags to work ...
1 comments
wwdevries 4783 days ago
You get this error when you compile the exploit incorrectly.

Compile like this and it works:

  gcc -O2 semtex.c && ./a.out
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sagarun 4782 days ago
Didn't work

[user@host ~]$ uname -a Linux host.company.com 3.8.11-200.fc18.x86_64 #1 SMP Wed May 1 19:44:27 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux [user@host ~]$ gcc -O2 semtex.c && ./a.out a.out: semtex.c:51: sheep: Assertion `!close(fd)' failed. Aborted (core dumped)

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rei 4781 days ago
Me too, didn't work:

me@myServer:~$ uname -a Linux KALIDHCP 2.6.32-5-amd64 #1 SMP Mon Feb 25 00:26:11 UTC 2013 x86_64 GNU/Linux me@myServer:~$ cat /etc/debian_version 6.0.7 me@myServer:~$ gcc -O2 semtex.c me@myServer:~$ ./a.out a.out: semtex.c:51: sheep: Assertion `!close(fd)' failed. Aborted me@myServer:~$

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