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#REDIRECT [[Browser security]]
A '''browser exploit''' is a form of malicious code that takes advantage of a flaw or vulnerability in an operating system or piece of software with the intent to alter a user's browser settings without their knowledge. Malicious code may exploit [[ActiveX]], [[HTML]], images, [[Java (programming language)|Java]], [[JavaScript]], and other Web technologies and cause the browser to run arbitrary code.
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==Symptoms==
Users whose web browsers have fallen victim of a successful browser exploit may find their homepage, search page, and/or favorites have been changed. Other signs include Internet settings options within the browser being altered, access being blocked to specific functions, and the redirection of incorrectly typed URL prefixes.
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==Prevention==
There are multiple ways users can protect their web browsers from falling victim to a browser exploit. Such things include installing firewall software, keeping software updated, being cautious when downloading files, and not opening email attachments from unknown sources.
==Notable browser exploits==
[[JailbreakMe]] is a series of browser based exploits used to [[IOS jailbreaking|jailbreak]] [[Apple Computer|Apple]]'s [[iOS (Apple)|iOS]] [[mobile operating system]]. It uses an exploit in the browser's PDF parser to execute unauthorised code and gain access to the underlying operating system.
==Framework==
A [[BeEF (Browser Exploitation Framework)|Browser Exploitation Framework]] could be used to attack browsers in realtime.
==See also==
*[[Comparison_of_web_browsers#Vulnerabilities|Comparison of web browser vulnerabilities]]
==External links==
*[http://www.mywot.com/en/online-threats/browser-exploits Online Threats - Browser exploits | WOT Web of Trust]
{{DEFAULTSORT:Browser Exploit}}
[[Category:Web security exploits]]
[[ja:ブラウザクラッシャー]]
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