Advisory Details

October 17th, 2022

Microsoft Exchange Autodiscover Server-Side Request Forgery Privilege Escalation Vulnerability

CVE ID	CVE-2022-41040
CVSS SCORE	6.3, AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
AFFECTED VENDORS	Microsoft
AFFECTED PRODUCTS	Exchange
VULNERABILITY DETAILS	This vulnerability allows remote attackers to escalate privileges on affected installations of Microsoft Exchange. Authentication is required to exploit this vulnerability. The specific flaw exists within the Autodiscover service. The issue results from the lack of proper validation of a URI prior to accessing resources. An attacker can leverage this vulnerability to escalate privileges to resources normally protected from the user.
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-2022-41040
DISCLOSURE TIMELINE	2022-09-09 - Vulnerability reported to vendor 2022-10-17 - Coordinated public release of advisory 2022-11-18 - Advisory Updated
CREDIT	DA-0x43-Dx4-DA-Hx2-Tx2-TP-S-Q from GTSC

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