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Vulnerability DatabaseCVE-2023-21761
CVE-2023-21761:
vulnerability analysis and mitigation
Overview
Microsoft Exchange Server Information Disclosure Vulnerability (CVE-2023-21761) was disclosed on January 10, 2023. This vulnerability affects multiple versions of Microsoft Exchange Server, including Exchange Server 2016 Cumulative Update 23 and Exchange Server 2019 Cumulative Updates 11 and 12 (NVD).
Technical details
The vulnerability has been assigned a CVSS v3.1 base score of 7.5 (HIGH) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N, indicating that it is network-accessible, requires low attack complexity, needs no privileges or user interaction, and can result in high confidentiality impact (NVD). Microsoft has classified this as a Server-Side Request Forgery (SSRF) vulnerability under CWE-918 (NVD).
Impact
The vulnerability could allow an attacker to gain unauthorized access to sensitive information through information disclosure in Microsoft Exchange Server (Microsoft Update Guide).
Mitigation and workarounds
Microsoft has released security updates to address this vulnerability. The fixes are available through Microsoft Exchange Server 2019 Cumulative Update 12 and Cumulative Update 11 (Microsoft Support).
Additional resources
Source: This report was generated using AI
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