Security Updates for Microsoft SharePoint Server 2013 (October 2021)
high Nessus Plugin ID 154028
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New! Plugin Severity Now Using CVSS v3
The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.
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
Plugin Details
Severity: High
ID: 154028
File Name: smb_nt_ms21_oct_office_sharepoint_2013.nasl
Version: 1.4
Type: local
Agent: windows
Family: Windows : Microsoft Bulletins
Published: 10/12/2021
Updated: 10/21/2021
Dependencies: ms_bulletin_checks_possible.nasl, smb_hotfixes.nasl, microsoft_sharepoint_installed.nbin
Risk Information
CVSS Score Source: CVE-2021-40486
VPR
Risk Factor: High
Score: 8.4
CVSS v2
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 5
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P
Temporal Vector: CVSS2#E:U/RL:OF/RC:C
CVSS v3
Risk Factor: High
Base Score: 7.8
Temporal Score: 6.8
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:2.3: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-2021-41344, CVE-2021-40484, CVE-2021-40485, CVE-2021-40486, CVE-2021-40487