Deserialization of Untrusted Data in Microsoft Exchange Server - #VU82692
Published: November 2, 2023
Vulnerability identifier: #VU82692
CSH Severity: High
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: N/A
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 data within the ChainedSerializationBinder class. A remote user can send specially crafted HTTP request to the application and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Microsoft Exchange Server
Remediation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.