Input validation error in Microsoft Exchange Server - CVE-2020-17144
Published: December 8, 2020 / Updated: April 23, 2024
Vulnerability identifier: #VU48886
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/E:A/U:Amber
CVE-ID: CVE-2020-17144
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vendor: Microsoft
Affected software:
Microsoft Exchange Server
Microsoft Exchange Server
Detailed vulnerability description
The vulnerability allows a remote user to execute arbitrary code on the system.
The vulnerability exists due to insufficient validation of user-supplied input when processing cmdlet argument. A remote privileged user can pass specially crafted input to the exchange server and execute arbitrary code.
How to mitigate CVE-2020-17144
Install updates from vendor's website.