CVE-2020-0688High
Microsoft Exchange Validation Key Remote Code Execution Vulnerability
🔗 CVE IDs covered (1)
📋 Description
A remote code execution vulnerability exists in Microsoft Exchange Server when the server fails to properly create unique keys at install time. Knowledge of a the validation key allows an authenticated user with a mailbox to pass arbitrary objects to be deserialized by the web application, which runs as SYSTEM. The security update addresses the vulnerability by correcting how Microsoft Exchange creates the keys during install.
🎯 Affected products6
- Microsoft Exchange Server 2010 Service Pack 3 Update Rollup 30
- Microsoft Exchange Server 2013 Cumulative Update 23
- Microsoft Exchange Server 2016 Cumulative Update 14
- Microsoft Exchange Server 2016 Cumulative Update 15
- Microsoft Exchange Server 2019 Cumulative Update 3
- Microsoft Exchange Server 2019 Cumulative Update 4
✅ Remediation
KB4536988 (Security Update) KB4536987 (Security Update) KB4536989 (Security Update)
🔗 References (10)
- advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-0688
- patchhttps://www.microsoft.com/download/details.aspx?familyid=ddba43d0-f66d-410d-a421-bb26e45d64b7
- referencehttps://support.microsoft.com/help/4536988
- patchhttps://www.microsoft.com/download/details.aspx?familyid=dec0d147-8b43-4fee-94cb-ed43ed1226ad
- referencehttps://support.microsoft.com/help/4536987
- patchhttps://www.microsoft.com/download/details.aspx?familyid=5ae7346b-f59c-415d-b576-e50f6b493a23
- patchhttps://www.microsoft.com/download/details.aspx?familyid=a4bd9a4e-56f4-42c2-b0d7-fffe52c5dbe5
- patchhttps://www.microsoft.com/download/details.aspx?familyid=6f5e2305-f1dc-4ce9-97c5-4d6fc1b87a24
- patchhttps://www.microsoft.com/download/details.aspx?familyid=4d072d3e-153e-4a5a-859e-ad054fe24107
- referencehttps://support.microsoft.com/help/4536989