The kernel-mode drivers in Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, 1703, and Windows Server 2016 allow local users to gain privileges via a crafted application, aka Win32k Elevation of Privilege Vulnerability.
Weakness
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Windows_10_1507 | Microsoft | - (including) | - (including) |
| Windows_10_1511 | Microsoft | - (including) | - (including) |
| Windows_10_1607 | Microsoft | - (including) | - (including) |
| Windows_10_1703 | Microsoft | - (including) | - (including) |
| Windows_7 | Microsoft | –sp1 (including) | –sp1 (including) |
| Windows_8.1 | Microsoft | - (including) | - (including) |
| Windows_rt_8.1 | Microsoft | - (including) | - (including) |
| Windows_server_2008 | Microsoft | –sp2 (including) | –sp2 (including) |
| Windows_server_2008 | Microsoft | r2-sp1 (including) | r2-sp1 (including) |
| Windows_server_2012 | Microsoft | - (including) | - (including) |
| Windows_server_2012 | Microsoft | r2 (including) | r2 (including) |
| Windows_server_2016 | Microsoft | - (including) | - (including) |
Potential Mitigations
References
- http://www.securityfocus.com/bid/98258
- http://www.securitytracker.com/id/1038449
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0263
- https://www.exploit-db.com/exploits/44478/
- https://xiaodaozhi.com/exploit/117.html
- http://www.securityfocus.com/bid/98258
- http://www.securitytracker.com/id/1038449
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0263
- https://www.exploit-db.com/exploits/44478/
- https://xiaodaozhi.com/exploit/117.html
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-0263