Microsoft Exchange ApprovedApplication Exposed Dangerous Method NTLM Relay Vulnerability
October 16th, 2024
Vulnerability Details
This vulnerability allows remote attackers to relay NTLM credentials on affected installations of Microsoft Exchange. Authentication is required to exploit this vulnerability.
The specific flaw exists within the ApprovedApplication class. The issue results from an exposed dangerous method. An attacker can leverage this vulnerability to relay NTLM credentials in the context of SYSTEM.
Additional Details
Microsoft has issued an update to correct this vulnerability. More details can be found at:
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-41078
Disclosure Timeline
- 2022-09-20 - Vulnerability reported to vendor
- 2024-10-16 - Coordinated public release of advisory
- 2024-10-16 - Advisory Updated
Credit
Piotr Bazydlo (@chudypb) of Trend Micro Zero Day Initiative
