Detections
Analytics
Security Updates for Exchange (February 2020)
high Nessus Plugin ID 133617
Language:
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 elevation of privilege vulnerability exists in Microsoft Exchange Server. An attacker who successfully exploited this vulnerability could gain the same rights as any other user of the Exchange server. This could allow the attacker to perform activities such as accessing the mailboxes of other users. Exploitation of this vulnerability requires Exchange Web Services (EWS) to be enabled and in use in an affected environment.
(CVE-2020-0692)
- 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-2020-0688)
Solution
Microsoft has released the following security updates to address this issue:-KB4536987
-KB4536988
-KB4536989
See Also
http://www.nessus.org/u?cac6add1
Plugin Details
Severity: High
ID: 133617
File Name: smb_nt_ms20_feb_exchange.nasl
Version: 1.21
Type: local
Agent: windows
Family: Windows : Microsoft Bulletins
Published: 2/11/2020
Updated: 6/6/2024
Supported Sensors: Frictionless Assessment Agent, Nessus
Risk Information
VPR
Risk Factor: Critical
Score: 9.6
CVSS v2
Risk Factor: High
Base Score: 9
Temporal Score: 7.8
Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C
CVSS Score Source: CVE-2020-0688
CVSS v3
Risk Factor: High
Base Score: 8.8
Temporal Score: 8.4
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/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: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: 2/11/2020
Vulnerability Publication Date: 2/11/2020
CISA Known Exploited Vulnerability Due Dates: 5/3/2022
Exploitable With
CANVAS (CANVAS)
Core Impact
Metasploit (Exchange Control Panel ViewState Deserialization)
Reference Information
CVE: CVE-2020-0688, CVE-2020-0692