Vulnerability Note VU#420316

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

Overview

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

I. Description

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.

II. Impact

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.

III. Solution

Apply an update

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

Systems Affected

Vendor	Status	Date Notified	Date Updated
Apple Computer, Inc.	Vulnerable	17-Aug-2005

References

http://docs.info.apple.com/article.html?artnum=302163
http://secunia.com/advisories/16449/
http://webkit.opendarwin.org/

Credit

Thanks to Apple Product Security for reporting this vulnerability.

This document was written by Ken MacInnis.

Other Information

Date Public:	2005-08-15
Date First Published:	2005-08-17
Date Last Updated:	2005-08-17
CERT Advisory:
CVE-ID(s):	CAN-2005-2522
NVD-ID(s):	CAN-2005-2522
US-CERT Technical Alerts:
Metric:	10.41
Document Revision:	9

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Produced 2005 by US-CERT, a government organization
Disclaimers and copyright information

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