CVE-2023-3326
CVSS V2 None
CVSS V3 None
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.
Overview
- CVE ID
- CVE-2023-3326
- Assigner
- freebsd
- Vulnerability Status
- PUBLISHED
- Published Version
- 2023-06-22T16:37:51.360Z
- Last Modified Date
- 2023-08-01T22:40:58.267Z
Weakness Enumerations
References
| Reference URL | Reference Tags |
|---|---|
| https://security.FreeBSD.org/advisories/FreeBSD-SA-23:04.pam_krb5.asc | vendor-advisory |
| https://security.netapp.com/advisory/ntap-20230714-0005/ | third-party-advisory |
| https://security.FreeBSD.org/advisories/FreeBSD-SA-23:09.pam_krb5.asc | vendor-advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2023-3326 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-3326 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2024-06-24 20:28:02 | Added to TrackCVE |