CVE-2003-0139
HighSummary
Version 4 of the Kerberos protocol (krb4) in the krb5 distribution has weaknesses that allow an attacker to create krb4 tickets for unauthorized principals. This is achieved through a cut-and-paste attack and 'ticket splicing', especially when triple-DES keys are used.
Risk Assessment
The organization may be exposed to unauthorized access to services, potentially leading to serious security breaches and data loss.
Recommendation
It is recommended to upgrade to a newer version of the Kerberos protocol and to avoid using triple-DES keys in the krb4 configuration.
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Original NVD description (English source)
Certain weaknesses in the implementation of version 4 of the Kerberos protocol (krb4) in the krb5 distribution, when triple-DES keys are used to key krb4 services, allow an attacker to create krb4 tickets for unauthorized principals using a cut-and-paste attack and "ticket splicing."