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.

Alert Message

OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt

Rule Explanation

An attacker can gain full control over a domain controller by exploiting a weakness in the Microsoft Windows Printer Spooler service. Due to improper validation of permissions, an attacker can install a custom driver on the victim machine.

What To Look For

This rule triggers on a remote code execution attempt against the Microsoft Windows Printer Spooler service. Also known as CVE-2021-1675.

Known Usage

No public information

False Positives

No known false positives

Contributors

Cisco Talos Intelligence Group

Rule Groups

No rule groups

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

This product uses data from the NVD API but is not endorsed or certified by the NVD.
CVE-2021-1675
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CVE-2021-34527
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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