A security feature bypass vulnerability exists in Microsoft Windows when the Task Scheduler service fails to properly verify client connections over RPC. An attacker who successfully exploited this vulnerability could run arbitrary code as an administrator. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. To exploit this vulnerability, a man-in-the-middle attacker would need to send a specially crafted request to a vulnerable system. The security update addresses the vulnerability by correcting how the Task Scheduler service validates connections.
CVSS Details
- CVSS 3.1 Base Score: 5.3
- CVSS 3.1 Vector: (CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Msft | — | 2020-05 Cumulative Update for Microsoft Windows Server 2012 R2 (KB4556853)2020-05 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4556853)2020-05 Security Only Quality Update for Windows Embedded Standard 7 for x64-based Systems (KB4556843)2020-05 Security Only Quality Update for Windows Embedded 8 Standard for x64-based Systems (KB4556852)2020-05 Cumulative Update for Microsoft Windows 10, version 1709 (KB4556812)2020-05 Security Only Quality Update for Windows Embedded Standard 7 for x86-based Systems (KB4556843)2020-05 Cumulative Update for Microsoft Windows Server 2019, version 1809 (KB4551853)2020-05 Cumulative Update for Windows Server, version 1903 for x64-based Systems (KB4556799)2020-05 Cumulative Update for Microsoft Windows Server 2016, version 1607 (KB4556813)2020-05 Cumulative Update for Windows Server, version 1909 for x64-based Systems (KB4556799)2020-05 Cumulative Update for Microsoft Windows 10, version 1507 (KB4556826)2020-05 Cumulative Update for Microsoft Windows 10, version 1607 (KB4556813)2020-05 Cumulative Update for Microsoft Windows 10, version 1903 (KB4556799)2020-05 Cumulative Update for Microsoft Windows 10, version 1809 (KB4551853)2020-05 Security Only Quality Update for Windows Server 2008 for x64-based Systems (KB4556854)2020-05 Cumulative Update for Microsoft Windows 10, version 1909 (KB4556799)2020-05 Security Only Quality Update for Windows Server 2008 for x86-based Systems (KB4556854)2020-05 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4556853)2020-05 Cumulative Update for Microsoft Windows Server 2012 (KB4556852)2020-05 Security Only Quality Update for Windows Embedded 8 Standard for x86-based Systems (KB4556852)2020-05 Cumulative Update for Microsoft Windows 10, version 1803 (KB4556807)2020-05 Security Only Quality Update for Windows Server 2008 R2 for x64-based Systems (KB4556843)2020-05 Security Only Quality Update for Windows 7 for x64-based Systems (KB4556843)2020-05 Security Only Quality Update for Windows 7 for x86-based Systems (KB4556843) | Jun 9, 2020 | May 12, 2020 |
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