CERT-In Vulnerability Note
CIVN-2020-0431
Multiple Remote Code Execution Vulnerabilities in Microsoft Exchange Server
Original Issue Date:December 10, 2020
Severity Rating: HIGH
Software Affected
- Microsoft Exchange Server 2013 Cumulative Update 23
- Microsoft Exchange Server 2016 Cumulative Update 17
- Microsoft Exchange Server 2016 Cumulative Update 18
- Microsoft Exchange Server 2019 Cumulative Update 6
- Microsoft Exchange Server 2019 Cumulative Update 7
Overview
Multiple vulnerabilities have been reported in Microsoft Exchange Server which could allow an attacker to conduct remote code execution attacks on the target system.
Description
Multiple vulnerabilities exist in Microsoft Exchange Server due to improper handling of objects in memory. A remote attacker could exploit these vulnerabilities by enticing the target user to open a specially crafted application.
Successful exploitation of these vulnerabilities could allow the attacker to execute arbitrary code on the target system.
Solution
Apply appropriate fix as mentioned in Microsoft Security Advisory
https://portal.msrc.microsoft.com/en-us/security-guidance
Vendor Information
Microsoft
https://portal.msrc.microsoft.com/en-us/security-guidance
References
Microsoft
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2020-17142
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2020-17132
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2020-17117
IBM X-Force Exchange
https://exchange.xforce.ibmcloud.com/vulnerabilities/192237
https://exchange.xforce.ibmcloud.com/vulnerabilities/192229
https://exchange.xforce.ibmcloud.com/vulnerabilities/192226
CVE Name
CVE-2020-17142
CVE-2020-17132
CVE-2020-17117
Disclaimer
The information provided herein is on "as is" basis, without warranty of any kind.
Contact Information
Email: info@cert-in.org.in Phone: +91-11-24368572
Postal address
Indian Computer Emergency Response Team (CERT-In)
Ministry of Electronics and Information Technology
Government of India
Electronics Niketan
6, CGO Complex, Lodhi Road,
New Delhi - 110 003
India
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