Vulnerability Note VU#210606
Apple Mac OS X "disk://" URI handler stores arbitrary files in a known location
A vulnerability has been reported in the default "disk://" protocol handler installed on Apple Mac OS X systems. Remote attackers may potentially use this vulnerability to create files on the local system without explicit user consent. We have not independently verified the scope of this vulnerability report.
A vulnerability has been reported in the Apple Mac OS X default "disk://" URI Handler. If able to entice a user to visit a foreign web site, a remote attacker may potentially be able to download any arbitrary file to a known location on the local system. If the file is a disk image (".dmg"), it could be automatcially mounted as a disk volume available for use by an attacker. A separate vulnerability, VU#578798, has also been reported which may allow a remote attacker to execute arbitrary application files contained within a mounted disk image.
Browser or applications supporting "disk://" URIs.
A remote attacker may be able to download arbitrary files to a known location on a potentially vulnerable system.
Security Update 2004-06-07 has been released for the following system versions:
This update removes the "disk://" URI handler.
According to the posting on Secunia, implementing all three of the following steps may mitigate this vulnerability:
2) Change the protocol helpers (applications) for URI handlers which are not required, e.g., disable the "help://" handler;
3) Add a separate protocol helper (application) for "disk".
Systems Affected (Learn More)
|Vendor||Status||Date Notified||Date Updated|
|Apple Computer, Inc.||Unknown||-||21 May 2004|
CVSS Metrics (Learn More)
Thanks to Kang for reporting this vulnerability.
This document was written by Jason A Rafail of CERT/CC and is based on information from Secunia.com and SecurityTracker.com.
- CVE IDs: Unknown
- Date Public: 17 May 2004
- Date First Published: 21 May 2004
- Date Last Updated: 01 May 2006
- Severity Metric: 18.00
- Document Revision: 10
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