Detections
Analytics
Security Updates for Microsoft Sharepoint Server (October 2017)
high Nessus Plugin ID 103786
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 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-2017-11775, CVE-2017-11777, CVE-2017-11820)
- A remote code execution vulnerability exists in Microsoft Office 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-2017-11826)
Solution
Microsoft has released the following security updates to address this issue:-KB3213623
-KB4011068
-KB4011170
-KB4011180
-KB4011217
See Also
http://www.nessus.org/u?a44abe21
http://www.nessus.org/u?9244fe07
http://www.nessus.org/u?fd221883
Plugin Details
Severity: High
ID: 103786
File Name: smb_nt_ms17_oct_office_sharepoint.nasl
Version: 1.12
Type: local
Agent: windows
Family: Windows : Microsoft Bulletins
Published: 10/11/2017
Updated: 4/12/2023
Supported Sensors: Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Critical
Score: 9.5
CVSS v2
Risk Factor: High
Base Score: 9.3
Temporal Score: 8.1
Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2017-11826
CVSS v3
Risk Factor: High
Base Score: 7.8
Temporal Score: 7.5
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:H/RL:O/RC:C
Vulnerability Information
CPE: cpe:/a:microsoft:office, cpe:/a:microsoft:sharepoint_server, cpe:/a:microsoft:sharepoint_foundation
Required KB Items: SMB/MS_Bulletin_Checks/Possible
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 10/10/2017
Vulnerability Publication Date: 10/10/2017
CISA Known Exploited Vulnerability Due Dates: 3/24/2022
Exploitable With
Core Impact
Reference Information
CVE: CVE-2017-11775, CVE-2017-11777, CVE-2017-11820, CVE-2017-11826