Advisory Details

November 22nd, 2022

Microsoft Exchange G711Reader Exposed Dangerous Function Information Disclosure Vulnerability

CVE ID	CVE-2022-41082
CVSS SCORE	4.3, AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
AFFECTED VENDORS	Microsoft
AFFECTED PRODUCTS	Exchange
VULNERABILITY DETAILS	This vulnerability allows remote attackers to disclose sensitive information on affected installations of Microsoft Exchange. Authentication is required to exploit this vulnerability. The specific flaw exists within the G711Reader class. The issue results from the exposure of a dangerous function. An attacker can leverage this vulnerability to disclose information in the context of SYSTEM.
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-2022-41082
DISCLOSURE TIMELINE	2022-10-04 - Vulnerability reported to vendor 2022-11-22 - Coordinated public release of advisory
CREDIT	Piotr Bazydlo (@chudypb) of Trend Micro Zero Day Initiative

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