Security Updates for Microsoft SharePoint Server (August 2019)

high Nessus Plugin ID 127909

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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 :

- 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-2019-1201, CVE-2019-1205)

- An information disclosure vulnerability exists in the way Microsoft SharePoint handles session objects. A locally authenticated attacker who successfully exploited the vulnerability could hijack the session of another user. (CVE-2019-1202)

- 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-2019-1203)

Solution

Microsoft has released the following security updates to address this issue:
-KB4462137
-KB4475530
-KB4475549
-KB4475555
-KB4475557
-KB4475565
-KB4475575

Plugin Details

Severity: High

ID: 127909

File Name: smb_nt_ms19_aug_office_sharepoint.nasl

Version: 1.6

Type: local

Agent: windows

Family: Windows : Microsoft Bulletins

Published: 8/16/2019

Updated: 6/6/2024

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 9.3

Temporal Score: 6.9

Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2019-1205

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:sharepoint_server:2010, cpe:/a:microsoft:sharepoint_foundation, cpe:/a:microsoft:sharepoint_server:2019, cpe:/a:microsoft:sharepoint_server:2013, cpe:/a:microsoft:sharepoint_server:2016

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Ease: No known exploits are available

Patch Publication Date: 8/13/2019

Vulnerability Publication Date: 8/13/2019

Reference Information

CVE: CVE-2019-1201, CVE-2019-1202, CVE-2019-1203, CVE-2019-1205

MSFT: MS19-4462137, MS19-4475530, MS19-4475549, MS19-4475555, MS19-4475557, MS19-4475565, MS19-4475575

MSKB: 4462137, 4475530, 4475549, 4475555, 4475557, 4475565, 4475575

Detections

Analytics