Is CVE-2023-3326 in the CISA KEV catalog?

No. CVE-2023-3326 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-3326?

CVE-2023-3326 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2023-3326?

CVE-2023-3326 has an EPSS score of 1.10% (62th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-3326?

Upgrade freebsd to 13.1 or later.

CVE & CISA-KEV Catalog

CVE-2023-3326

CRITICAL

9.8

CVSS v3

NVD

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.

CWE-303 CWE-287Improper Authentication

How to fix

Remediation Available

freebsdNVD

Affected:>= 13.0, < 13.1Fixed in:13.1CVE-2023-3326derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

1.10%probability of exploitation in 30 days

62ndpercentile

Moderate risk: more likely to be exploited than 62% of all known CVEs.

References

Vendor Advisory1

security.freebsd.org

Third-Party Advisory1

security.netapp.com

Other references1

security.freebsd.org

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.