Apple Mac OS X AFP server stores reconnect keys in a world-readable file

Overview

A vulnerability in Apple Mac OS X AFP server may allow an authenticated local user to access files or folders with the credentials of another user.

Description

The AFP (Apple Filing Protocol) service allows Apple Mac OS clients to remotely access files from a server. In Apple’s Mac OS X Server, the AFP server supports automatic reconnection of file sharing after a network outage by storing reconnect keys locally. The storage of these reconnect keys is unprotected by appropriate file system permissions. As a result, it is possible for an authenticated local user to read the reconnect keys and use them to access files and folders on the server with the system credentials of another user.

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Impact

A user may be able to view sensitive reconnect keys within an unprotected file and use those keys to gain access with the credentials of another user. Apple states that this issue only affects Apple Mac OS X Server.

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Solution

Apply an update

Apple has addressed this issue in Security Update 2006-004.

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Vendor Information

168020

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Apple Computer, Inc. __ Affected

Notified: August 02, 2006 Updated: August 03, 2006

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

Please see Apple Security Update 2006-004 for details on updates.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23168020 Feedback>).

CVSS Metrics

Group	Score	Vector
Base
Temporal
Environmental

References

• <http://docs.info.apple.com/article.html?artnum=304063&gt;
• <http://secunia.com/advisories/21253/&gt;

Acknowledgements

Thanks to Apple Product Security for reporting this vulnerability.

This document was written by Katie Washok.

Other Information

CVE IDs:	CVE-2006-3495
Severity Metric:	3.60 Date Public: