Detections
Analytics

Security Updates for Exchange (January 2019)

critical Nessus Plugin ID 121022

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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 :

 - An information disclosure vulnerability exists when the Microsoft Exchange PowerShell API grants calendar contributors more view permissions than intended.
 (CVE-2019-0588)

 - A remote code execution vulnerability exists in Microsoft Exchange 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 System user. An attacker could then install programs; view, change, or delete data; or create new accounts. Exploitation of the vulnerability requires that a specially crafted email be sent to a vulnerable Exchange server. The security update addresses the vulnerability by correcting how Microsoft Exchange handles objects in memory.
 (CVE-2019-0586)

Solution

Microsoft has released the following security updates to address this issue:
 -KB4468742
 -KB4471389

See Also

https://support.microsoft.com/en-us/help/4468742

https://support.microsoft.com/en-us/help/4471389

Plugin Details

Severity: Critical

ID: 121022

File Name: smb_nt_ms19_jan_exchange.nasl

Version: 1.8

Type: local

Agent: windows

Published: 1/8/2019

Updated: 6/6/2024

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2019-0586

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/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:exchange_server:2016, cpe:/a:microsoft:exchange_server:2019

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Ease: No known exploits are available

Patch Publication Date: 1/8/2019

Vulnerability Publication Date: 1/8/2019

Reference Information

CVE: CVE-2019-0586, CVE-2019-0588

MSFT: MS19-4468742, MS19-4471389

MSKB: 4468742, 4471389