Zero-day QuickTime flaw in the wild
Security researchers are warning of a flaw in Apple's media player that hackers could soon use to exploit systems running Windows XP and Vista.
A zero-day flaw identified in Apple's QuickTime media player could soon be the subject of in-the-wild attacks looking to target users running Microsoft Windows XP and Vista operating systems (OSs).
The bug, rated critical by security researcher Symantec, is known to affect QuickTime versions 7.2 and 7.3 (although it was not yet known if earlier versions are also affected), in addition to the player's handling of Real Time streaming protocol (RTSP) of audio and video files running on the Windows OSs.
But it had not been established whether Apple OS X versions of QuickTime also carried the flaw.
Symantec and the a href="http://www.us-cert.gov" target="_blank">US Computer Emergency Readiness Team (US-CERT) have issued alerts on the flaw, which say hackers can exploit it by writing streaming content designed to get unwary users to visit compromised or malicious sites or by getting them to click on a malicious link to a file with some extension read by default in QuickTime (e.g. .qtl, .mov or .gsm) sent in an email.
Successful exploits could allow hackers to install additional malware on the user's computer to make it part of a botnet or harvest passwords using spyware.
A Polish researcher, Krystian Kloskowski was credited by Symantec for first spotting the flaw, which was posted on the milw0rm.com website last Friday. Over the weekend another researcher, known as 'InTEL' had posted proof-of-concept examples of the vulnerability running QuickTime 7.2 or 7.4 on Windows XP with service pack 2 (SP2) and Vista systems.
Symantec also said in its security alerts blog that Firefox users are more susceptible to this attack because Firefox farms off the QuickTime or RTSP request directly to the QuickTime Player as a separate process outside of its control. As a result, it said "the current version of the exploit works perfectly against Firefox if users have chosen QuickTime as the default player for multimedia formats."
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