Deserialization of Untrusted Data in Microsoft Exchange Server - #VU82692

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Main Vulnerability Database Vulnerabilities #VU82692

Deserialization of Untrusted Data in Microsoft Exchange Server - #VU82692

Published: November 2, 2023


Vulnerability identifier: #VU82692
CSH Severity: High
CVSSv4.0: 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/E:U/U:Amber
CVE-ID: N/A
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Microsoft Exchange Server
Software vendor:
Microsoft

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 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.


Remediation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

External links