Deserialization of Untrusted Data in Microsoft Exchange Server - CVE-2023-36745
Published: September 12, 2023 / Updated: April 9, 2024
Vulnerability identifier: #VU80673
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2023-36745
CWE-ID: CWE-502
Exploitation vector: Adjecent network
Exploit availability:
Public exploit is available
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 target system.
The vulnerability exists due to insecure input validation when processing serialized data using the known (Type 4) UnitySerializationHolder gadget. A remote user on the local network can pass specially crafted data to the application and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2023-36745
Install updates from vendor's website.