CVE - CVE-2023-3326

CVE-ID
CVE-2023-3326	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://security.FreeBSD.org/advisories/FreeBSD-SA-23:04.pam_krb5.asc URL:https://security.FreeBSD.org/advisories/FreeBSD-SA-23:04.pam_krb5.asc MISC:https://security.FreeBSD.org/advisories/FreeBSD-SA-23:09.pam_krb5.asc URL:https://security.FreeBSD.org/advisories/FreeBSD-SA-23:09.pam_krb5.asc MISC:https://security.netapp.com/advisory/ntap-20230714-0005/ URL:https://security.netapp.com/advisory/ntap-20230714-0005/
Assigning CNA
FreeBSD
Date Record Created
20230619	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20230619)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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