Security Updates for Microsoft SharePoint Server 2016 (January 2023)

high Nessus Plugin ID 169898

Synopsis

The Microsoft SharePoint Server 2016 installation on the remote host is missing a security update.

Description

The Microsoft SharePoint Server 2016 installation on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities:
- A security feature bypass vulnerability exists. An attacker can exploit this and bypass the security feature and perform unauthorized actions compromising the integrity of the system/application.
(CVE-2023-21743)
- A remote code execution vulnerability. An attacker can exploit this to bypass authentication and execute unauthorized arbitrary commands. (CVE-2023-21742, CVE-2023-21744)

Solution

Microsoft has released KB5002338 to address this issue.

See Also

https://support.microsoft.com/en-us/help/5002338

Plugin Details

Severity: High

ID: 169898

File Name: smb_nt_ms23_jan_office_sharepoint_2016.nasl

Version: 1.5

Type: local

Agent: windows

Published: 1/11/2023

Updated: 9/8/2023

Supported Sensors: Frictionless Assessment Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2023-21744

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 8.2

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:microsoft:sharepoint_server

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/10/2023

Vulnerability Publication Date: 1/10/2023

Reference Information

CVE: CVE-2023-21742, CVE-2023-21743, CVE-2023-21744

IAVA: 2023-A-0022-S

MSFT: MS23-5002338

MSKB: 5002338