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 information disclosure attempt

Rule Explanation

This event is generated when a binary that exploits the vulnerability outlined in CVE-2018-8565 is detected. Impact: Information Disclosure Details: Ease of Attack:

What To Look For

Known Usage

No public information

False Positives

No known false positives

Contributors

Cisco Talos Intelligence Group

MITRE ATT&CK Framework

Tactic:

Technique:

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

CVE

Additional Links

Rule Vulnerability

CVE Additional Information

CVE-2018-8565
An information disclosure vulnerability exists when the win32k component improperly provides kernel information, aka "Win32k Information Disclosure Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers.
Details
Severity Base Score5.5
Impact Score3.6 Exploit Score1.8
Confidentiality ImpactHIGH Integrity ImpactNONE
Availability ImpactNONE Access Vector
Authentication Ease of Access