Deserialization of Untrusted Data in Microsoft Exchange Server - CVE-2019-1373
Published: November 12, 2019
Vulnerability identifier: #VU22681
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-1373
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary code on the target system.
The vulnerability exists due to insecure input validation when processing serialized metadata via PowerShell. A remote user can run a specially crafted cmdlets via PowerShell and execute arbitrary code in context of the logged in user
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Microsoft Exchange Server
How to mitigate CVE-2019-1373
Install updates from vendor's website.