Apple Mac OS X ftpd may allow arbitrary users to determine account name validity. This vulnerability may reveal protected information or allow an attacker to cause a denial-of-service condition.
According to Apple Security Update 2006-007:
When attempting to authenticate a valid user, the FTP server may crash during a failed login attempt. The crash does not occur when attempting to authenticate unknown users.
A remote, unauthenticated attacker may be able to determine protected information or cause a denial-of-service condition.
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This issue is addressed by Apple Security Update 2006-007.
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Updated: November 29, 2006
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Refer to Apple Security Update 2006-007.
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Group | Score | Vector
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This issue was reported in Apple Security Update 2006-007. Apple credits Benjamin Williams of the University of Canterbury for reporting this issue.
This document was written by Chris Taschner.
CVE IDs: | CVE-2006-4403
Severity Metric: | 10.13
Date Public: | 2006-11-28
Date First Published: | 2006-11-30
Date Last Updated: | 2006-11-30 15:49 UTC
Document Revision: | 9