Detections
Analytics

Security Updates for Microsoft SharePoint Server 2019 (July 2021)

high Nessus Plugin ID 151594

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Synopsis

The Microsoft SharePoint Server 2019 installation on the remote host is affected by multiple vulnerabilities.

Description

The Microsoft SharePoint Server 2019 installation on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities:

 - Microsoft SharePoint Server Remote Code Execution Vulnerability (CVE-2021-34467, CVE-2021-34468, CVE-2021-34520)

 - Microsoft SharePoint Server Spoofing Vulnerability (CVE-2021-34517)

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 these issues:
-KB5001975

See Also

https://support.microsoft.com/en-us/help/5001975

Plugin Details

Severity: High

ID: 151594

File Name: smb_nt_ms21_july_office_sharepoint_2019.nasl

Version: 1.7

Type: local

Agent: windows

Published: 7/13/2021

Updated: 12/29/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.4

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

CVSS Score Source: CVE-2021-34520

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.5

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

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: 7/13/2021

Vulnerability Publication Date: 7/13/2021

Reference Information

CVE: CVE-2021-34467, CVE-2021-34468, CVE-2021-34517, CVE-2021-34520

IAVA: 2021-A-0317-S

MSFT: MS21-5001975

MSKB: 5001975