Rule Category

OS-WINDOWS -- Snort has detected traffic targeting vulnerabilities in a Windows-based operating system. This does not include browser traffic or other software on the OS, but attacks against the OS itself. (such as?)

Alert Message

OS-WINDOWS Microsoft Windows Win32k local privilege escalation attempt

Rule Explanation

This event is generated when an attempt to exploit a local escalation of privileges in Windows, has been detected. This rule searches for malicious executables by searching for specific bytes that occur within the exploit code.

What To Look For

This event is generated when an attempt to exploit a local escalation of privileges in Windows, has been detected.

Known Usage

No public information

False Positives

No known false positives

Contributors

Cisco Talos Intelligence Group

MITRE ATT&CK Framework

Tactic: Privilege Escalation

Technique: Exploitation for Privilege Escalation

For reference, see the MITRE ATT&CK vulnerability types here: https://attack.mitre.org

CVE

Additional Links

Rule Vulnerability

Escalation of Privilege

An Escalation of Privilege (EOP) attack is any attack method that results in a user or application gaining permissions to access resources they normally would not have access to.

CVE Additional Information

CVE-2019-1458
An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k Elevation of Privilege Vulnerability'.
Details
SeverityHIGH Base Score7.2
Impact Score10.0 Exploit Score3.9
Confidentiality ImpactCOMPLETE Integrity ImpactCOMPLETE
Availability ImpactCOMPLETE Access VectorLOCAL
AuthenticationNONE Ease of AccessLOW