Security Updates for Microsoft SharePoint Server 2013 (October 2021)

high Nessus Plugin ID 154028

Synopsis

The Microsoft SharePoint Server 2013 installation on the remote host is affected by multiple vulnerabilities.

Description

The Microsoft SharePoint Server 2013 installation on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities :

- A remote code execution vulnerability. An attacker can exploit this to bypass authentication and execute unauthorized arbitrary commands. (CVE-2021-40485, CVE-2021-40486)
- A remote code execution vulnerability. An attacker can exploit this to bypass authentication and execute unauthorized arbitrary commands. (CVE-2021-40486, CVE-2021-40487, CVE-2021-41344) Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Microsoft has released the following security updates to address this issue:
-KB4493202
-KB5002042

See Also

https://support.microsoft.com/en-us/help/4493202

https://support.microsoft.com/en-us/help/5001924

https://support.microsoft.com/en-us/help/5002042

Plugin Details

Severity: High

ID: 154028

File Name: smb_nt_ms21_oct_office_sharepoint_2013.nasl

Version: 1.6

Type: local

Agent: windows

Published: 10/12/2021

Updated: 5/9/2022

Risk Information

CVSS Score Source: CVE-2021-40486

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:microsoft:sharepoint_server

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Ease: No known exploits are available

Patch Publication Date: 10/11/2021

Vulnerability Publication Date: 10/11/2021

Reference Information

CVE: CVE-2021-40484, CVE-2021-40485, CVE-2021-40486, CVE-2021-40487, CVE-2021-41344

MSKB: 4493202, 5001924, 5002042

MSFT: MS21-4493202, MS21-5001924, MS21-5002042

IAVA: 2021-A-0469-S