Detections
Analytics
Security Updates for Microsoft SharePoint Server (June 2020)
high Nessus Plugin ID 137269
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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 :- An open redirect vulnerability exists in Microsoft SharePoint that could lead to spoofing. (CVE-2020-1323)
- An elevation of privilege vulnerability exists in Microsoft SharePoint. An attacker who successfully exploited this vulnerability could attempt to impersonate another user of the SharePoint server.
(CVE-2020-1295)
- A remote code execution vulnerability exists in Microsoft SharePoint Server when it fails to properly identify and filter unsafe ASP.Net web controls. An authenticated attacker who successfully exploited the vulnerability could use a specially crafted page to perform actions in the security context of the SharePoint application pool process. (CVE-2020-1181)
- 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-2020-1177, CVE-2020-1183, CVE-2020-1297, CVE-2020-1298, CVE-2020-1318, CVE-2020-1320)
- An elevation of privilege vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted authentication request to an affected SharePoint server. An attacker who successfully exploited this vulnerability could execute malicious code on a vulnerable server in the context of the SharePoint application pool account. (CVE-2020-1178)
- 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-2020-1148, CVE-2020-1289)
Solution
Microsoft has released the following security updates to address this issue:-KB4484409
-KB4484414
-KB4484391
-KB4484402
-KB4484400
-KB4484405
See Also
http://www.nessus.org/u?c3ed2d30
http://www.nessus.org/u?25f013bc
http://www.nessus.org/u?e56f1871
http://www.nessus.org/u?0a150f7d
Plugin Details
Severity: High
ID: 137269
File Name: smb_nt_ms20_jun_office_sharepoint.nasl
Version: 1.8
Type: local
Agent: windows
Family: Windows : Microsoft Bulletins
Published: 6/9/2020
Updated: 1/26/2023
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: High
Score: 7.4
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-2020-1295
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
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: 6/9/2020
Vulnerability Publication Date: 6/9/2020
Exploitable With
Core Impact
Reference Information
CVE: CVE-2020-1148, CVE-2020-1177, CVE-2020-1178, CVE-2020-1181, CVE-2020-1183, CVE-2020-1289, CVE-2020-1295, CVE-2020-1297, CVE-2020-1298, CVE-2020-1318, CVE-2020-1320, CVE-2020-1323