Security Updates for Microsoft SharePoint Server (April 2019)

medium Nessus Plugin ID 123955

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-2019-0830, CVE-2019-0831)

Solution

Microsoft has released the following security updates to address this issue:
-KB4464510
-KB4464511
-KB4464515
-KB4464518
-KB4464525
-KB4464528

See Also

http://www.nessus.org/u?456df873

http://www.nessus.org/u?e7416298

http://www.nessus.org/u?39689789

http://www.nessus.org/u?8e824cde

http://www.nessus.org/u?fd386600

http://www.nessus.org/u?c4ddef06

Plugin Details

Severity: Medium

ID: 123955

File Name: smb_nt_ms19_apr_office_sharepoint.nasl

Version: 1.8

Type: local

Agent: windows

Published: 4/9/2019

Updated: 6/6/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.0

CVSS v2

Risk Factor: Low

Base Score: 3.5

Temporal Score: 2.6

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

CVSS Score Source: CVE-2019-0831

CVSS v3

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

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: 4/9/2019

Vulnerability Publication Date: 4/9/2019

Reference Information

CVE: CVE-2019-0830, CVE-2019-0831

MSFT: MS19-4464510, MS19-4464511, MS19-4464515, MS19-4464518, MS19-4464525, MS19-4464528

MSKB: 4464510, 4464511, 4464515, 4464518, 4464525, 4464528