QID 150664

Date Published: 2023-03-30

QID 150664: Microsoft Exchange Server Multiple Vulnerabilities (ProxyNotShell) (CVE-2022-41040,CVE-2022-41082)

Microsoft Exchange Server is a mail server and calendaring server developed by Microsoft. It runs exclusively on Windows Server operating systems.

Multiple Vulnerabilities are identified in affected versions of Microsoft Exchange Server:
CVE-2022-41040: Elevation of Privilege vulnerability.
CVE-2022-41082: Remote Code Execution (RCE) when PowerShell is accessible to the attacker.

Affected Products:
Exchange Server 2013 CU23
Exchange Server 2016 CU22
Exchange Server 2016 CU23
Exchange Server 2019 CU11
Exchange Server 2019 CU12

QID Detection Logic: (Unauthenticated)
This QID sends a HTTP GET request to "/owa" endpoint and checks for vulnerable version of Microsoft Exchange Server.

Successful exploitation of these vulnerabilities could allow an attacker to execute arbitrary commands on the target system.

CVSS V3 rated as Critical - 8.8 severity.

CVSS V2 rated as Critical - 10 severity.

Solution

Customers are advised to upgrade to the patched version released on November 8, 2022 or later to remediate these vulnerabilities.
For more information regarding these vulnerabilities and patching details please refer Microsoft Security Advisory.

Vendor References

Microsoft Security Advisory - msrc.microsoft.com/blog/2022/09/customer-guidance-for-reported-zero-day-vulnerabilities-in-microsoft-exchange-server/

CVEs related to QID 150664

CVE-2022-41040 | CVE-2022-41082 |

Software Advisories

Advisory ID	Software	Component	Link
Microsoft Security Advisory			msrc.microsoft.com/blog/2022/09/customer-guidance-for-reported-zero-day-vulnerabilities-in-microsoft-exchange-server/

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