![]() Microsoft notes that this exploitation can occur before the email is viewed in the Preview Pane, meaning no interaction from the victim recipient is needed for a successful attack. The attacker can use this hash to authenticate as the victim recipient in an NTLM relay attack. When the email is processed by the server, a connection to an attacker-controlled device can be established in order to leak the Net-NTLMv2 hash of the email recipient. The vulnerability can be exploited by sending a malicious email to a vulnerable version of Outlook. Remote code execution (RCE) vulnerabilities accounted for 32.9% of the vulnerabilities patched this month, followed by elevation of privilege (EoP) vulnerabilities at 26.3%.ĬVE-2023-23397 is an elevation of privilege vulnerability in Microsoft Outlook that was assigned a CVSSv3 score of 9.8 and was exploited in the wild. Windows Point-to-Point Protocol over Ethernet (PPPoE).Windows Internet Key Exchange (IKE) Protocol. ![]()
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