Rule Category

OS-LINUX -- Snort has detected traffic targeting vulnerabilities in a Linux-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-LINUX Polkit pkexec privilege escalation attempt

Rule Explanation

This rule alerts on strings from a known ELF binary that is used for privilege escalation within Linux environments. It will detect the attempt to use Polkit's pkexec as a vehicle for this escalation.

What To Look For

This rule will trigger against a compiled ELF executable that allows a malicious user to escalate their privileges in a Linux environment.

Known Usage

No public information

False Positives

No known false positives

Contributors

Cisco Talos Intelligence Group

MITRE ATT&CK Framework

Tactic: Privilege Escalation

Technique: Setuid and Setgid

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

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