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Kerberos V5 Telnet Client Information Disclosure Weakness Advisory Available in Danish 

Secunia Advisory: SA15709  
Release Date: 2005-06-15

Critical:
Not critical
Impact: Exposure of system information
Where: From remote
Solution Status: Unpatched

Software:Kerberos 5.x

CVE reference:CVE-2005-0488 (Secunia mirror)

This advisory is currently marked as unpatched!
- Companies can be alerted when a patch is released!


Description:
Gaël Delalleau has reported a weakness in Kerberos V5, which can be exploited by malicious people to gain knowledge of various information.

The problem is caused due to a design error in the Telnet client when handling the NEW-ENVIRON command. This can be exploited to gain knowledge of the session variables for a user, who has an open connection to a malicious Telnet server.

The weakness has been reported in the telnet client included in the Kerberos V5 Release 1.3.6 package. Other versions may also be affected.

Solution:
The vendor is reportedly considering to release patches, which implement an option to restrict or disable the transmission of environment variables by the telnet client.

Provided and/or discovered by:
Gaël Delalleau

Original Advisory:
iDEFENSE:
http://www.idefense.com/application/poi/display?id=260&type=vulnerabilities



Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.

Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.

19 Related Secunia Security Advisories, displaying 10

1. Kerberos Multiple Vulnerabilities
2. Kerberos Multiple Vulnerabilities
3. Kerberos Multiple Vulnerabilities
4. Kerberos Multiple Vulnerabilities
5. Kerberos kadmind xprt->xp_auth Code Execution Vulnerability
6. Kerberos kadmind "mechglue" Code Execution Vulnerability
7. Kerberos V5 setuid Security Issue
8. Kerberos V5 Multiple Vulnerabilities
9. MIT Kerberos Telnet Client Buffer Overflow Vulnerabilities
10. Kerberos V5 "libkadm5srv" Buffer Overflow Vulnerability

Show all related advisories


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