QID 150748

Date Published: 2023-11-28

QID 150748: Microsoft Exchange Server: Unauthenticated Multiple Server-Side Request Forgery Vulnerabilities (0day)

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

Microsoft Exchange server is vulnerable to an authenticated SSRF vulnerability. The specific flaw exists within the 'CreateAttachmentFromUri', 'DownloadDataFromUri' and 'DownloadDataFromOfficeMarketPlace' methods. The issue results from the lack of proper validation of a URI prior to accessing resources.

Affected Versions:
The vulnerability affects all versions of Microsoft Exchange Server.

QID Detection Logic (Unauthenticated):
This QID sends a HTTP GET request and checks the response headers to confirm if the host is running vulnerable version of Microsoft Exchange Server.

An attacker can leverage this vulnerability to disclose information in the context of the Exchange server.

CVSS V3 rated as Critical - 8.3 severity.

CVSS V2 rated as Critical - 8.7 severity.

Solution

Microsoft has not released a patch for this vulnerability as of now. For more information regarding the vulnerability please refer to ZDI Blog or ZDI-23-1581, ZDI-23-1579, ZDI-23-1580 advisories.

Vendor References

CVEs related to QID 150748

Software Advisories

Advisory ID	Software	Component	Link

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