CVE-2020-17143: Microsoft Exchange Server Information Disclosure Vulnerability

Published Dec 8, 2020
·
Updated

Microsoft Exchange Information Disclosure Vulnerability

Other sources

Microsoft Exchange Server Information Disclosure Vulnerability

Affected Software

10 affected componentsFixes available
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
Microsoft Exchange Server 2016=17
Microsoft Exchange Server 2019=6
Microsoft Exchange Server 2019=7
Microsoft Exchange Server 2016=18
Microsoft Exchange Server 2013=23

Event History

Dec 8, 2020
CVE Published
via Microsoft·08:00 AM
Data Sourced
via Microsoft·08:00 AM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·08:00 AM
Affected Software
Updated
via Microsoft·08:00 AM
Description
Dec 9, 2020
CVE Published
via MITRE·11:36 PM
Data Sourced
via MITRE·11:36 PM
DescriptionSeverity
Dec 10, 2020
Data Sourced
via NVD·12:15 AM
RemedyDescriptionSeverityAffected Software

Frequently Asked Questions

1

What is CVE-2020-17143?

CVE-2020-17143 is a vulnerability in Microsoft Exchange Server that allows attackers to disclose sensitive information.

2

What is the severity of CVE-2020-17143?

The severity of CVE-2020-17143 is high with a CVSS score of 8.8.

3

Which versions of Microsoft Exchange Server are affected by CVE-2020-17143?

Microsoft Exchange Server 2013 (Cumulative Update 23), Exchange Server 2016 (Cumulative Update 17 and 18), and Exchange Server 2019 (Cumulative Update 6 and 7) are affected by CVE-2020-17143.

4

How can attackers exploit CVE-2020-17143?

Attackers can exploit CVE-2020-17143 by sending specially crafted requests to a vulnerable Microsoft Exchange server and gaining access to sensitive information.

5

Is there a fix available for CVE-2020-17143?

Yes, Microsoft has released security updates to address the vulnerability. It is recommended to apply the latest cumulative updates for the affected versions of Microsoft Exchange Server.

Contact

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