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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT Security Bulletin ASB-2022.0065 Microsoft Patch Tuesday update for Microsoft Exchange Server for March 2022 9 March 2022 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Microsoft Exchange Server Operating System: Windows Resolution: Patch/Upgrade CVE Names: CVE-2022-24463 CVE-2022-23277 Comment: CVSS (Max): 8.8 CVE-2022-23277 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C) CVSS Source: Microsoft Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C Microsoft notes that exploitation of CVE-2022-23277 is more likely to be targeted by threat actors. OVERVIEW Microsoft has released its monthly security patch update for the month of March 2022. This update resolves 2 vulnerabilities across the following products: [1] Microsoft Exchange Server 2013 Cumulative Update 23 Microsoft Exchange Server 2016 Cumulative Update 21 Microsoft Exchange Server 2016 Cumulative Update 22 Microsoft Exchange Server 2019 Cumulative Update 10 Microsoft Exchange Server 2019 Cumulative Update 11 IMPACT Microsoft has given the following details regarding these vulnerabilities. Details Impact Severity CVE-2022-23277 Remote Code Execution Critical CVE-2022-24463 Spoofing Important MITIGATION Microsoft recommends updating the software with the version made available on the Microsoft Update Catalogue for the following Knowledge Base articles. [1]. KB5010324, KB5012698 REFERENCES [1] Microsoft Security Update Guidance https://portal.msrc.microsoft.com/en-us/security-guidance AusCERT has made every effort to ensure that the information contained in this document is accurate. However, the decision to use the information described is the responsibility of each user or organisation. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBYif0PONLKJtyKPYoAQieSw/+IWiJb6KksgYQdfi6KytjsYk3nmvsYDvX SnA6EAxo46C5e2DnAMWmBoccGzjgUtQAEUdewKd6AM+wG+E0h8fkHaV7vPBvGHLG PTT7bknE2vIwoVFWE+ImL/t7ACbDqECqNKPBNP8UUDIBoHfAWZQlJja22U8bjFM2 NKAWsU0uwhGdFT79S+DuWj71VN7h3Hr1HSECFzH0ctE/Adt9GrOy0SVoF/xNmp9K 6RaKsrp9WCHszFn2/iIwr8kyuqhqCSWW31r7nYn+A5cYQHZw++xbICf2h1LJy12i wbyIpLPyc3NGxwEIkE0qyPXmntc3TzIrCr0AyK7jxpV17xOkJpSNhGz2DDXmABGP Z9ZgHQAIFCGSOTk4//IXDpa/xfNsGF25MRTjSyAK+pn2Qioc7jBfFqvblU5FO+Zn uRlbX6/+vCTV/IBgDFvuzbDQ55qtMfp4QOfLH6ha9AkMwYOT1gXb3e/Kg1rXoPY2 ss1FQ+07B7/42b5K8KkigzIYQCBHDJ0ys+rUU+0wt055MFWA5YtUF1iwE3HRbL3a jVhhxhW7i2QEsrPWNO1kDj4GxL5jBzzXQ0szKpmYubIJJ1FWPOnk0tc0YGxBkn3I vk+eAc9p8mTQ2ts5TatyFvUPbAH08Ms84wTg/oybB5YAge0AUKBrvBJXQMiOwTji pOI56MFwUPw= =c4m0 -----END PGP SIGNATURE-----