#VU47598 Information disclosure in Microsoft Exchange Server - CVE-2020-16969
Published: October 13, 2020
Vulnerability identifier: #VU47598
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-16969
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Microsoft Exchange Server
Microsoft Exchange Server
Software vendor:
Microsoft
Microsoft
Description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to the Microsoft Exchange improperly validates tokens when handling certain messages. A remote attacker can send specially crafted OWA messages and gain unauthorized access to sensitive information on the system.
Remediation
Install updates from vendor's website.