QID 730805

QID 730805: Microsoft Exchange Server Remote Code Execution (RCE) Vulnerability for February 2023 (Unauthenticated Check)

Microsoft Exchange Server 2013, 2016 and 2019 are affected by multiple vulnerabilities.

KB Articles associated with this update are: KB5023038

Affected Versions:
Microsoft Exchange Server 2013 Cumulative Update 23
Microsoft Exchange Server 2016 Cumulative Update 23
Microsoft Exchange Server 2019 Cumulative Update 11
Microsoft Exchange Server 2019 Cumulative Update 12

QID Detection Logic (unauthenticated):
The QID checks for vulnerable version of Microsoft Exchange Server by sending a crafted payload to the server

Successful exploitation of the vulnerability may allow remote code execution

CVSS V3 rated as Critical - 8.8 severity.

CVSS V2 rated as Critical - 8.3 severity.

Solution

Microsoft has released patch, customers are advised to refer to KB5023038 for information pertaining to this vulnerability.

Vendor References

CVE-2023-21529 - msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2023-21529
CVE-2023-21706 - msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-21706
CVE-2023-21707 - msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2023-21707
CVE-2023-21710 - msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2023-21710

CVEs related to QID 730805

CVE-2023-21707 | CVE-2023-21529 | CVE-2023-21706 | CVE-2023-21710 |

Software Advisories

Advisory ID	Software	Component	Link
KB5023038			support.microsoft.com/en-us/topic/description-of-the-security-update-for-microsoft-exchange-server-2019-2016-and-2013-february-14-2023-kb5023038-2e60d338-dda3-46ed-aed1-4a8bbee87d23

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