ZDI-CAN-13614: (Pwn2Own) Microsoft Exchange Server PowerShell Improper Authentication Remote Code Execution Vulnerability
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Microsoft Exchange Server. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the Powershell service. The issue results from the lack of proper validation of a access token prior to executing the Exchange PowerShell command. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of SYSTEM.
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-CAN-13614?
ZDI-CAN-13614 is considered a critical vulnerability due to its potential for remote code execution.
How do I fix ZDI-CAN-13614?
To fix ZDI-CAN-13614, apply the latest security patches provided by Microsoft for Exchange Server.
What types of systems are affected by ZDI-CAN-13614?
ZDI-CAN-13614 affects installations of Microsoft Exchange Server.
Can ZDI-CAN-13614 be exploited without authentication?
ZDI-CAN-13614 requires authentication to exploit, but the existing mechanism can be bypassed.
What are the implications of exploiting ZDI-CAN-13614?
Exploiting ZDI-CAN-13614 could allow remote attackers to execute arbitrary code on the server, potentially compromising data integrity and confidentiality.
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