Detections
Analytics
Security Updates for Microsoft Office Web Apps (September 2020)
high Nessus Plugin ID 140431
Language:
Synopsis
The Microsoft Office Web Apps installation on the remote host is affected by multiple vulnerabilities.Description
The Microsoft Office Web Apps installation on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities :- An information disclosure vulnerability exists when Microsoft Excel improperly discloses the contents of its memory. An attacker who exploited the vulnerability could use the information to compromise the users computer or data. (CVE-2020-1224)
- A remote code execution vulnerability exists in Microsoft Word software when it fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could use a specially crafted file to perform actions in the security context of the current user. For example, the file could then take actions on behalf of the logged-on user with the same permissions as the current user. (CVE-2020-1218, CVE-2020-1338)
- A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. (CVE-2020-1335)
Solution
Microsoft has released the following security updates to address this issue:-KB4486661
-KB4484518
-KB4484503
See Also
http://www.nessus.org/u?b3853e9d
Plugin Details
Severity: High
ID: 140431
File Name: smb_nt_ms20_sep_office_web.nasl
Version: 1.6
Type: local
Agent: windows
Family: Windows : Microsoft Bulletins
Published: 9/8/2020
Updated: 11/29/2024
Supported Sensors: Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
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-2020-1338
CVSS v3
Risk Factor: High
Base Score: 8.8
Temporal Score: 7.7
Vector: CVSS:3.0/AV:N/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_web_apps
Required KB Items: SMB/MS_Bulletin_Checks/Possible
Exploit Ease: No known exploits are available
Patch Publication Date: 9/8/2020
Vulnerability Publication Date: 9/8/2020
Reference Information
CVE: CVE-2020-1218, CVE-2020-1224, CVE-2020-1335, CVE-2020-1338