What is CVE-2022-2031?

CVE-2022-2031 is a high-severity vulnerability in Samba, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 8.8/10. Published 2022-08-25.

How severe is CVE-2022-2031?

High severity. CVSS v3 base score is 8.8 out of 10.

Auth bypass in Samba

CVE-2022-2031

A flaw was found in Samba. The security vulnerability occurs when KDC and the kpasswd service share a single account and set of keys, allowing them to decrypt each other's tickets. A user who has been requested to change their password, can exploit this flaw to obtain and use tickets to other services.

EPSS: 0.010 (58.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Samba
N/a Samba — versions Versions prior to samba 4.16.4, samba 4.15.9, samba 4.14.14

Weakness classification (CWE)

References

secalert@redhat.com (Vendor Advisory)
secalert@redhat.com (vendor-advisory)

Frequently asked questions

What is CVE-2022-2031?: CVE-2022-2031 is a high-severity vulnerability in Samba, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 8.8/10. Published 2022-08-25.
How severe is CVE-2022-2031?: High severity. CVSS v3 base score is 8.8 out of 10.