Description
An elevation of privilege vulnerability exists when Windows improperly handles calls to Advanced Local Procedure Call (ALPC).
An attacker who successfully exploited this vulnerability could run arbitrary code in the security context of the local system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.
To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control over an affected system.
The update addresses the vulnerability by correcting how Windows handles calls to ALPC.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | Windows 10 Version 1703 | 10.0.0 – < publication | publication |
| Microsoft | Windows 10 Version 1803 | 10.0.0 – < publication | publication |
| Microsoft | Windows Server, version 1803 (Server Core Installation) | 10.0.0 – < publication | publication |
| Microsoft | Windows 10 Version 1809 | 10.0.17763.0 – < publication, 10.0.0 – < publication | publication |
| Microsoft | Windows Server 2019 | 10.0.17763.0 – < publication | publication |
| Microsoft | Windows Server 2019 (Server Core installation) | 10.0.17763.0 – < publication | publication |
| Microsoft | Windows 10 Version 1709 for 32-bit Systems | 10.0.0 – < publication | publication |
| Microsoft | Windows 10 Version 1709 | 10.0.0 – < publication | publication |
| Microsoft | Windows 10 Version 1903 for 32-bit Systems | 10.0.0 – < publication | publication |
| Microsoft | Windows 10 Version 1903 for x64-based Systems | 10.0.0 – < publication | publication |
| Microsoft | Windows 10 Version 1903 for ARM64-based Systems | 10.0.0 – < publication | publication |
| Microsoft | Windows Server, version 1903 (Server Core installation) | 10.0.0 – < publication | publication |
| Microsoft | Windows 10 Version 1507 | 10.0.10240.0 – < publication | publication |
| Microsoft | Windows 10 Version 1607 | 10.0.14393.0 – < publication | publication |
| Microsoft | Windows Server 2016 | 10.0.14393.0 – < publication | publication |
| Microsoft | Windows Server 2016 (Server Core installation) | 10.0.14393.0 – < publication | publication |
| Microsoft | Windows 7 | 6.1.0 – < publication | publication |
| Microsoft | Windows 7 Service Pack 1 | 6.1.0 – < publication | publication |
| Microsoft | Windows 8.1 | 6.3.0 – < publication | publication |
| Microsoft | Windows Server 2008 R2 Systems Service Pack 1 | 6.1.0 – < publication | publication |
| Microsoft | Windows Server 2008 R2 Service Pack 1 | 6.1.7601.0 – < publication | publication |
| Microsoft | Windows Server 2008 R2 Service Pack 1 (Server Core installation) | 6.1.7601.0 – < publication | publication |
| Microsoft | Windows Server 2012 | 6.2.9200.0 – < publication | publication |
| Microsoft | Windows Server 2012 (Server Core installation) | 6.2.9200.0 – < publication | publication |
| Microsoft | Windows Server 2012 R2 | 6.3.9600.0 – < publication | publication |
| Microsoft | Windows Server 2012 R2 (Server Core installation) | 6.3.9600.0 – < publication | publication |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Exploit-DB 1
- Microsoft Windows Font Cache Service - Insecure Sections Privilege Escalation EDB-47029 · dos · Jun 24, 2019 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- Windows ALPC Elevation of Privilege Vulnerability vendor-advisory