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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT Security Bulletin ASB-2021.0133 Microsoft Patch Tuesday update for Microsoft Office, Microsoft Office Services and Web Apps for July 2021 14 July 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Microsoft Office Products Microsoft Office Services Microsoft Web App Products Operating System: Windows Mac OS Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction Provide Misleading Information -- Remote/Unauthenticated Unauthorised Access -- Remote with User Interaction Access Confidential Data -- Existing Account Reduced Security -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2021-34520 CVE-2021-34519 CVE-2021-34518 CVE-2021-34517 CVE-2021-34501 CVE-2021-34469 CVE-2021-34468 CVE-2021-34467 CVE-2021-34452 CVE-2021-34451 OVERVIEW Microsoft has released its monthly security patch update for the month of July 2021. This update resolves 10 vulnerabilities across the following products: [1] Microsoft 365 Apps for Enterprise for 32-bit Systems Microsoft 365 Apps for Enterprise for 64-bit Systems Microsoft Excel 2013 RT Service Pack 1 Microsoft Excel 2013 Service Pack 1 (32-bit editions) Microsoft Excel 2013 Service Pack 1 (64-bit editions) Microsoft Excel 2016 (32-bit edition) Microsoft Excel 2016 (64-bit edition) Microsoft Office 2013 RT Service Pack 1 Microsoft Office 2013 Service Pack 1 (32-bit editions) Microsoft Office 2013 Service Pack 1 (64-bit editions) Microsoft Office 2016 (32-bit edition) Microsoft Office 2016 (64-bit edition) Microsoft Office 2019 for 32-bit editions Microsoft Office 2019 for 64-bit editions Microsoft Office 2019 for Mac Microsoft Office Online Server Microsoft Office Web Apps Server 2013 Service Pack 1 Microsoft SharePoint Enterprise Server 2013 Service Pack 1 Microsoft SharePoint Enterprise Server 2016 Microsoft SharePoint Foundation 2013 Service Pack 1 Microsoft SharePoint Server 2019 Microsoft Word 2016 (32-bit edition) Microsoft Word 2016 (64-bit edition) IMPACT Microsoft has given the following details regarding these vulnerabilities. Details Impact Severity CVE-2021-34451 Spoofing Important CVE-2021-34452 Remote Code Execution Important CVE-2021-34467 Remote Code Execution Important CVE-2021-34468 Remote Code Execution Important CVE-2021-34469 Security Feature Bypass Important CVE-2021-34501 Remote Code Execution Important CVE-2021-34517 Spoofing Important CVE-2021-34518 Remote Code Execution Important CVE-2021-34519 Information Disclosure Moderate CVE-2021-34520 Remote Code Execution Important MITIGATION Microsoft recommends updating the software with the version made available on the Microsoft Update Catalogue for the following Knowledge Base articles. [1]. KB5001949, KB5001973, KB5001975, KB5001976, KB5001977 KB5001979, KB5001981, KB5001983, KB5001984, KB5001986 KB5001992, KB5001993, KB5001996 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 iQIVAwUBYO5YkeNLKJtyKPYoAQg0txAAql6U3oGmaITF/j6dvmynBI1lHDXF6Mn6 X/01PGAGSmYnWzcH8Tl10pFhiZTe2/lGPC+Ov2na9iHMYiV7dE+DK28MzJGFSi6q TRYt+KX0ZyFVaEyiX+qNco68kH5LIO9BSnYQ6pcMUWNXgJnUNDZjz3bknaBLMJrH lyOzKakfarEEZx/G7bdFg6Rmkopotzi8nvYybpU3yJkqex8qzmsLtqW+3VunkSBq zUe3ijAitvhUwlJMfzOoThVBe2mIfdurdW8u6VehVBGNwdUhOTi02oUiuna6Y1fS 3p9m4Y88VLa+NmW6KglrvaXsSyrTz8YSd2UzGp4ZeSo6vNzyB7qR8DHoLgIJ9bt8 ULgKJzpAGRVajk+/yZ1E+OJZrbvJnjA/+YH6CqxVb2pbTmL4nv/3DqUcLAHyJRnO V6EmI+oTv2zjbCAuAUhaPux7LEjO0eN8xUH54tlo1aA/J25VB8c5fdOK3QetBbJq A/NArnXboy0SNxHgSVS8K0zLRvEk1VIp1fa8/Tf6LLCKrHKcTWzKCC/C/pyN3K5M ANfeQ9OE7EQNS0G4BFZsuH6trK/KHQ82EsmirVuEOUg2j20i/wF+JKdNLxZ10rHE no1aJc4dVaWXfwLIq6HRGhJ5yQVOYy4F45msAd22t8IlO9IlpykvdGsTsLRNHBMk yrhy4bjifoM= =hcYQ -----END PGP SIGNATURE-----