CVE-2020-1054
high CISA KEVMicrosoft Win32k Privilege Escalation Vulnerability
Vendor / product: Microsoft — Win32k
An elevation of privilege vulnerability exists in Windows when the Windows kernel-mode driver fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. 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 of an affected system. The update addresses this vulnerability by correcting how the Windows kernel-mode driver handles objects in memory.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Required action (CISA)
Apply updates per vendor instructions.
Affected products
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-1054 secure@microsoft.com
- http://packetstormsecurity.com/files/160515/Microsoft-Windows-DrawIconEx-Local-Privilege-E... af854a3a-2127-422b-91ae-364da2661108
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1054 af854a3a-2127-422b-91ae-364da2661108
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-1054 134c704f-9b21-4f2e-91b3-4a467353bcc0