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 Device Guard bypass attempt

Rule Explanation

This event is generated when an attacker attempts to exploit a Device Guard Security bypass vulnerability. Impact: Attempted User Privilege Gain Details: Rule checks for attempts to exploit a Device Guard Security bypass vulnerability. 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-2018-8449
A security feature bypass exists when Device Guard incorrectly validates an untrusted file, aka "Device Guard Security Feature Bypass Vulnerability." This affects Windows Server 2016, Windows 10, Windows 10 Servers.
Details
Severity Base Score3.3
Impact Score1.4 Exploit Score1.8
Confidentiality ImpactNONE Integrity ImpactLOW
Availability ImpactNONE Access Vector
Authentication Ease of Access