Security Updates for Microsoft SharePoint Server 2013 (February 2021)

high Nessus Plugin ID 146457

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:

- An information disclosure vulnerability. An attacker can exploit this to disclose potentially sensitive information. (CVE-2021-24071)

- A session spoofing vulnerability exists. An attacker can exploit this to perform actions with the privileges of another user. (CVE-2021-1726)
- A remote code execution vulnerability. An attacker can exploit this to bypass authentication and execute unauthorized arbitrary commands. (CVE-2021-24066, CVE-2021-24072)

Solution

Microsoft has released KB4493210 to address this issue.

See Also

http://www.nessus.org/u?7202aba1

Plugin Details

Severity: High

ID: 146457

File Name: smb_nt_ms21_feb_office_sharepoint_2013.nasl

Version: 1.6

Type: local

Agent: windows

Published: 2/12/2021

Updated: 6/13/2022

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 4.8

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

CVSS Score Source: CVE-2021-24072

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: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:microsoft:sharepoint_foundation

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Ease: No known exploits are available

Patch Publication Date: 2/9/2021

Vulnerability Publication Date: 2/9/2021

Reference Information

CVE: CVE-2021-1726, CVE-2021-24066, CVE-2021-24071, CVE-2021-24072

IAVA: 2021-A-0070-S

MSFT: MS21-4493210

MSKB: 4493210