CVE Vulnerability

CVE-2022-0336

The Samba AD DC includes checks when adding service principals names (SPNs) to an account to ensure that SPNs do not alias with those already in the database. Some of these checks are able to be bypassed if an account modification re-adds an SPN that was previously present on that account, such as one added when a computer is joined to a domain. An attacker who has the ability to write to an account can exploit this to perform a denial-of-service attack by adding an SPN that matches an existing service. Additionally, an attacker who can intercept traffic can impersonate existing services, resulting in a loss of confidentiality and integrity.

8.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://www.samba.org/samba/security/CVE-2022-0336.html Vendor Advisory
https://access.redhat.com/security/cve/CVE-2022-0336 Issue Tracking Third Party Advisory
https://github.com/samba-team/samba/commit/1a5dc817c0c9379bbaab14c676681b42b0039a3c Patch Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2046134 Issue Tracking Third Party Advisory
https://github.com/samba-team/samba/commit/c58ede44f382bd0125f761f0479c8d48156be400 Patch Third Party Advisory
https://bugzilla.samba.org/show_bug.cgi?id=14950 Issue Tracking Patch
Configurations

Configuration 1

cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
Information

Published : 2022-08-29 03:15

Updated : 2022-09-01 08:05

NVD link : CVE-2022-0336

Mitre link : CVE-2022-0336

Products Affected
No products.
CWE
CWE-276

Incorrect Default Permissions