Detections
Analytics
Security Updates for Microsoft SharePoint Server (April 2020)
high Nessus Plugin ID 135675
Language:
Synopsis
The Microsoft SharePoint Server installation on the remote host is affected by multiple vulnerabilities.Description
The Microsoft SharePoint Server installation on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities :- 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-2020-0980)
- A remote code execution vulnerability exists in Microsoft SharePoint when the software fails to check the source markup of an application package. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the SharePoint application pool and the SharePoint server farm account.
Exploitation of this vulnerability requires that a user uploads a specially crafted SharePoint application package to an affected version of SharePoint. The security update addresses the vulnerability by correcting how SharePoint checks the source markup of application packages. (CVE-2020-0920, CVE-2020-0929, CVE-2020-0931, CVE-2020-0932, CVE-2020-0971, CVE-2020-0974)
- A cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web request to an affected SharePoint server. An authenticated attacker could exploit the vulnerability by sending a specially crafted request to an affected SharePoint server. The attacker who successfully exploited the vulnerability could then perform cross-site scripting attacks on affected systems and run script in the security context of the current user. The attacks could allow the attacker to read content that the attacker is not authorized to read, use the victim's identity to take actions on the SharePoint site on behalf of the user, such as change permissions and delete content, and inject malicious content in the browser of the user. The security update addresses the vulnerability by helping to ensure that SharePoint Server properly sanitizes web requests. (CVE-2020-0923, CVE-2020-0924, CVE-2020-0925, CVE-2020-0926, CVE-2020-0927, CVE-2020-0930, CVE-2020-0933, CVE-2020-0954, CVE-2020-0973, CVE-2020-0978)
- A spoofing vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web request to an affected SharePoint server. An authenticated attacker could exploit the vulnerability by sending a specially crafted request to an affected SharePoint server. The attacker who successfully exploited the vulnerability could then perform cross- site scripting attacks on affected systems and run script in the security context of the current user.
These attacks could allow the attacker to read content that the attacker is not authorized to read, use the victim's identity to take actions on the SharePoint site on behalf of the user, such as change permissions and delete content, and inject malicious content in the browser of the user. The security update addresses the vulnerability by helping to ensure that SharePoint Server properly sanitizes web requests. (CVE-2020-0972, CVE-2020-0975, CVE-2020-0976, CVE-2020-0977)
Solution
Microsoft has released security updates for Microsoft SharePoint Server.See Also
http://www.nessus.org/u?146e79ea
http://www.nessus.org/u?0f656ea7
http://www.nessus.org/u?0b112be9
http://www.nessus.org/u?705dbbc1
http://www.nessus.org/u?c81717de
http://www.nessus.org/u?7c86af69
http://www.nessus.org/u?14098d8a
http://www.nessus.org/u?0634cc8e
http://www.nessus.org/u?b226f5e7
http://www.nessus.org/u?f210025f
http://www.nessus.org/u?a6bffe1f
Plugin Details
Severity: High
ID: 135675
File Name: smb_nt_ms20_apr_office_sharepoint.nasl
Version: 1.10
Type: local
Agent: windows
Family: Windows : Microsoft Bulletins
Published: 4/16/2020
Updated: 3/8/2023
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: High
Score: 7.4
CVSS v2
Risk Factor: High
Base Score: 9.3
Temporal Score: 7.7
Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2020-0980
CVSS v3
Risk Factor: High
Base Score: 8.8
Temporal Score: 8.2
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:F/RL:O/RC:C
CVSS Score Source: CVE-2020-0974
Vulnerability Information
CPE: cpe:/a:microsoft:sharepoint_foundation, cpe:/a:microsoft:sharepoint_server
Required KB Items: SMB/MS_Bulletin_Checks/Possible
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 4/14/2020
Vulnerability Publication Date: 4/14/2020
Exploitable With
CANVAS (CANVAS)
Core Impact
Reference Information
CVE: CVE-2020-0920, CVE-2020-0923, CVE-2020-0924, CVE-2020-0925, CVE-2020-0926, CVE-2020-0927, CVE-2020-0929, CVE-2020-0930, CVE-2020-0931, CVE-2020-0932, CVE-2020-0933, CVE-2020-0954, CVE-2020-0971, CVE-2020-0972, CVE-2020-0973, CVE-2020-0974, CVE-2020-0975, CVE-2020-0976, CVE-2020-0977, CVE-2020-0978, CVE-2020-0980
IAVA: 2020-A-0155-S
MSFT: MS20-4011581, MS20-4011584, MS20-4484291, MS20-4484292, MS20-4484293, MS20-4484297, MS20-4484298, MS20-4484299, MS20-4484301, MS20-4484307, MS20-4484308, MS20-4484321, MS20-4484322
MSKB: 4011581, 4011584, 4484291, 4484292, 4484293, 4484297, 4484298, 4484299, 4484301, 4484307, 4484308, 4484321, 4484322