Detections
Analytics
Security Updates for Microsoft Office Products (December 2021)
high Nessus Plugin ID 156062
Language:
Synopsis
The Microsoft Office Products are affected by multiple vulnerabilities.Description
The Microsoft Office Products are 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-2021-43256, CVE-2021-43875)
- An elevation of privilege vulnerability. An attacker can exploit this to gain elevated privileges.
(CVE-2021-42293)
- A session spoofing vulnerability exists. An attacker can exploit this to perform actions with the privileges of another user. (CVE-2021-43255)
- An information disclosure vulnerability. An attacker can exploit this to disclose potentially sensitive information. (CVE-2021-42295)
Solution
Microsoft has released the following security updates to address this issue:-KB4504710
-KB4504745
-KB4486726
-KB5002033
-KB5002099
-KB5002104
-KB5002101
For Office 365, Office 2016 C2R, or Office 2019, ensure automatic updates are enabled or open any office app and manually perform an update.
See Also
https://support.microsoft.com/en-us/help/4504710
https://support.microsoft.com/en-us/help/4504745
https://support.microsoft.com/en-us/help/4486726
https://support.microsoft.com/en-us/help/5002033
https://support.microsoft.com/en-us/help/5002099
https://support.microsoft.com/en-us/help/5002101
https://support.microsoft.com/en-us/help/5002104
Plugin Details
Severity: High
ID: 156062
File Name: smb_nt_ms21_dec_office.nasl
Version: 1.7
Type: local
Agent: windows
Family: Windows : Microsoft Bulletins
Published: 12/14/2021
Updated: 3/16/2023
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: High
Score: 7.4
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
CVSS Score Source: CVE-2021-43875
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:/a:microsoft:office
Required KB Items: SMB/MS_Bulletin_Checks/Possible
Exploit Ease: No known exploits are available
Patch Publication Date: 12/14/2021
Vulnerability Publication Date: 12/14/2021
Reference Information
CVE: CVE-2021-42293, CVE-2021-42295, CVE-2021-43255, CVE-2021-43256, CVE-2021-43875