QID 50122

Date Published: 2022-09-30

QID 50122: Microsoft Exchange Server Multiple Vulnerabilities (Zero Day)(ProxyNotShell)

Microsoft Exchange Server 2013, 2016, and 2019 are affected by two zero-day vulnerabilities. The first vulnerability, identified as CVE-2022-41040, is a Server-Side Request Forgery (SSRF) vulnerability, while the second, identified as CVE-2022-41082, allows remote code execution (RCE) when PowerShell is accessible to the attacker.

QID Detection Logic (Authenticated):
This QID checks for vulnerable versions of MS Exchange Server and checks if the temporary "URL Rewrite rule" mitigation is applied.

Successful exploitation of the vulnerability may allow remote code execution.

CVSS V3 rated as Critical - 8.8 severity.

CVSS V2 rated as Critical - 10 severity.

Solution

There are no patches yet, however, Microsoft advised users to apply temporary mitigations. For more information please refer to Microsoft Security Advisory

Vendor References

Microsoft Security Advisory - msrc-blog.microsoft.com/2022/09/29/customer-guidance-for-reported-zero-day-vulnerabilities-in-microsoft-exchange-server/

CVEs related to QID 50122

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

Software Advisories

Advisory ID	Software	Component	Link

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