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Apple QuickTime "qtnext" Input Validation Vulnerability
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Secunia Advisory:
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SA22048
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Release Date:
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2006-09-21
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Last Update:
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2007-10-04
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Popularity:
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15,900 views
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Critical:
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Highly critical
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Impact:
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Security Bypass
System access
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | Apple QuickTime 7.x
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| CVE reference: | CVE-2006-4965
CVE-2007-4673
CVE-2007-5045
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Description:
pdp has discovered a vulnerability in Apple QuickTime, which can be exploited by malicious people to bypass certain security restrictions and to compromise a user's system.
The vulnerability is caused due to missing input validation when processing the "qtnext" attribute in an "embed" tag of a QuickTime Media Link file. This can be exploited e.g. by a malicious web site to open local content in the browser via the "qtnext" attribute of the "embed" tag in a Quicktime Media Link file opened by the QuickTime Plug-In.
NOTE: This can further be exploited to pass arbitrary parameters to the default browser when a specially crafted file is opened with QuickTime or the QuickTime Plug-In and allows e.g. execution of arbitrary code on a user's system when Firefox is set as the default browser. This is caused by Firefox inappropriately allowing execution of arbitrary script code in Chrome context via the "-chrome" parameter. Reportedly, this issue does not affect Mac OS X.
The vulnerability is confirmed in version 7.2 with Firefox 2.0.0.6. Other versions may also be affected.
Solution:
Apply Security Update for QuickTime 7.2 for Windows.
http://www.apple.com/support/download...tyupdateforquicktime72forwindows.html
Provided and/or discovered by:
pdp
Changelog:
2006-09-26: Added CVE reference.
2007-09-13: Added additional information about exploitation via Firefox provided by pdp. Updated "Criticality", "Impact", "Description", and "Title". Added link to "Original Advisory" section.
2007-09-14: Added link to US-CERT.
2007-09-25: Added CVE reference.
2007-10-04: Updated "Solution" section and note in "Description" section. Added CVE reference.
Original Advisory:
Apple:
http://docs.info.apple.com/article.html?artnum=306560
http://www.gnucitizen.org/blog/backdooring-mp3-files/
http://www.gnucitizen.org/blog/0day-quicktime-pwns-firefox
Other References:
US-CERT VU#751808:
http://www.kb.cert.org/vuls/id/751808
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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