(Sun Describes Workaround) Kerberos telnetd Grants Access to Remote Users
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SecurityTracker Alert ID: 1017868 |
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SecurityTracker URL: http://securitytracker.com/id/1017868
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CVE Reference:
CVE-2007-0956
(Links to External Site)
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Date: Apr 4 2007
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Impact:
Root access via network, User access via network
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Vendor Confirmed: Yes
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Version(s): krb5 prior to krb5-1.6.1
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Description:
A vulnerability was reported in Kerberos in the telnet daemon. A remote user can bypass authentication and gain access to the target system.
A remote user can invoke telnet and set a specially crafted username that begins with '-e' to gain remote access to the specified username account on the target system.
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Impact:
A remote user can gain access to the target system.
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Solution:
Sun has described a workaround for the Sun Enterprise Authentication Mechanism (SEAM) 1.0 kerberized telnet daemon, available in their advisory.
Sun is working on a fix.
The Sun advisory is available at:
http://sunsolve.sun.com/search/document.do?assetkey=1-26-102867-1
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Vendor URL: web.mit.edu/kerberos/advisories/MITKRB5-SA-2007-001-telnetd.txt (Links to External Site)
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Cause:
Authentication error, State error
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Underlying OS:
UNIX (Solaris - SunOS)
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Message History:
This archive entry is a follow-up to the message listed below.
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Source Message Contents
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Date: Wed, 4 Apr 2007 10:53:27 -0400
Subject: Security Vulnerability in the SEAM Kerberized telnetd(1M) Daemon May Allow Unauthorized Remote Users to Gain Access to a Solaris Host
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http://sunsolve.sun.com/search/document.do?assetkey=1-26-102867-1
CVE-2007-0956
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