Vulnerability Note VU#420316

Apple Mac OS X Safari vulnerable to arbitrary command execution via URLs in PDF files

Original Release date: 17 Aug 2005 | Last revised: 17 Aug 2005


Apple Mac OS X WebKit and Safari security controls may be bypassed, possibly allowing remote command execution.


Mac OS X includes the Safari web browser, which can display Portable Document Format (PDF) files directly. This functionality is part of the WebKit system framework. The PDF rendering code in Safari is able to call the URLs directly rather than through the Safari browser. This may allow some security controls defined in Safari to be bypassed, leading to possible arbitrary command execution.


A remote, unauthenticated attacker may be able to persuade a user to click on a PDF file link within Safari, leading to remote command execution.


Apply an update

Please see Apple Security Update 2005-007 for details on workarounds, fixes, and updates.

Systems Affected (Learn More)

VendorStatusDate NotifiedDate Updated
Apple Computer, Inc.Affected-17 Aug 2005
If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A N/A



Thanks to Apple Product Security for reporting this vulnerability.

This document was written by Ken MacInnis.

Other Information

  • CVE IDs: CAN-2005-2522
  • Date Public: 15 Aug 2005
  • Date First Published: 17 Aug 2005
  • Date Last Updated: 17 Aug 2005
  • Severity Metric: 10.41
  • Document Revision: 9


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