OpenSSH GSSAPI Authentication Abort Error Lets Remote Users Determine Valid Usernames
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SecurityTracker Alert ID: 1016939
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SecurityTracker URL: http://securitytracker.com/id?1016939
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CVE Reference: CVE-2006-5052
(Links to External Site)
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Date: Sep 28 2006
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Impact: Disclosure of system information
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Fix Available: Yes
Vendor Confirmed: Yes
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Version(s): 4.3 and prior versions
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Description: A vulnerability was reported in OpenSSH in the portable version. A remote user may be able to determine valid usernames on the target system.
A remote user can exploit a GSSAPI authentication abort error to determine the validity of usernames on some platforms.
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Impact: A remote user may be able to determine the validity of usernames on the target system.
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Solution: The vendor has issued a fixed version (4.4).
The OpenSSH advisory is available at:
http://www.openssh.org/txt/release-4.4
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Vendor URL: www.openssh.org/txt/release-4.4 (Links to External Site)
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Cause: State error
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Underlying OS: Linux (Any), UNIX (Any)
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Message History:
This archive entry has one or more follow-up message(s) listed below.
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Source Message Contents
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Date: Wed, 27 Sep 2006 22:27:54 -0400
Subject: OpenSSH vulnerability
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http://www.openssh.org/txt/release-4.4
* On portable OpenSSH, fix a GSSAPI authentication abort that could
be used to determine the validity of usernames on some platforms.
CVE-2006-5052
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