Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2023-3326

pam_krb5 authenticates a user by essentially running kinit with the password, getting a ticket-granting ticket (tgt) from the Kerberos KDC (Key Distribution Center) over the network, as a way to verify the password. However, if a keytab is not provisioned on the system, pam_krb5 has no way to validate the response from the KDC, and essentially trusts the tgt provided over the network as being valid. In a non-default FreeBSD installation that leverages pam_krb5 for authentication and does not have a keytab provisioned, an attacker that is able to control both the password and the KDC responses can return a valid tgt, allowing authentication to occur for any user on the system.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 50.8%
CVSS Severity
CVSS v3 Score 9.8
Products affected by CVE-2023-3326


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