Security Updates for Exchange (April 2019)

medium Nessus Plugin ID 123975

Synopsis

The Microsoft Exchange Server installed on the remote host is affected by multiple vulnerabilities.

Description

The Microsoft Exchange Server installed on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities :

- A spoofing vulnerability exists in Microsoft Exchange Server when Outlook Web Access (OWA) fails to properly handle web requests. An attacker who successfully exploited the vulnerability could perform script or content injection attacks, and attempt to trick the user into disclosing sensitive information. An attacker could also redirect the user to a malicious website that could spoof content or the vulnerability could be used as a pivot to chain an attack with other vulnerabilities in web services. (CVE-2019-0817, CVE-2019-0858)

Solution

Microsoft has released the following security updates to address this issue:
-KB4491413
-KB4487563

See Also

http://www.nessus.org/u?91648e9b

http://www.nessus.org/u?582a33f9

Plugin Details

Severity: Medium

ID: 123975

File Name: smb_nt_ms19_apr_exchange.nasl

Version: 1.9

Type: local

Agent: windows

Published: 4/10/2019

Updated: 6/6/2024

Supported Sensors: Frictionless Assessment Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.0

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 4.8

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

CVSS Score Source: CVE-2019-0817

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.7

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

Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C

CVSS Score Source: CVE-2019-0858

Vulnerability Information

CPE: cpe:/a:microsoft:exchange_server:2016, cpe:/a:microsoft:exchange_server:2019

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/9/2019

Vulnerability Publication Date: 4/9/2019

Reference Information

CVE: CVE-2019-0817, CVE-2019-0858

MSFT: MS19-4487563, MS19-4491413

MSKB: 4487563, 4491413