Elastic Security Detection Rules

Network Connection by Cups or Foomatic-rip Child

Last updated a year ago on 2025-02-04
Created a year ago on 2024-09-27

About

This detection rule addresses multiple vulnerabilities in the CUPS printing system, including CVE-2024-47176, CVE-2024-47076, CVE-2024-47175, and CVE-2024-47177. Specifically, this rule detects network connections initiated by a child processes of foomatic-rip. These flaws impact components like cups-browsed, libcupsfilters, libppd, and foomatic-rip, allowing remote unauthenticated attackers to manipulate IPP URLs or inject malicious data through crafted UDP packets or network spoofing. This can result in arbitrary command execution when a print job is initiated.
Tags
Domain: EndpointOS: LinuxUse Case: Threat DetectionUse Case: VulnerabilityTactic: Command and ControlData Source: Elastic DefendLanguage: eql
Severity
high
Risk Score
73
MITRE ATT&CK™

Command and Control (TA0011)(external, opens in a new tab or window)

Execution (TA0002)(external, opens in a new tab or window)

↳ Exploitation for Client Execution (T1203)(external, opens in a new tab or window)

Defense Evasion (TA0005)(external, opens in a new tab or window)

Exfiltration (TA0010)(external, opens in a new tab or window)

License
Elastic License v2(external, opens in a new tab or window)

Definition

Rule Type
Event Correlation Rule
Integration Pack
Prebuilt Security Detection Rules
Index Patterns
logs-endpoint.events.network*logs-endpoint.events.process*
Related Integrations

endpoint(external, opens in a new tab or window)

Query
text code block:
sequence by host.id with maxspan=10s
  [process where host.os.type == "linux" and event.type == "start" and event.action == "exec" and
   process.parent.name == "foomatic-rip" and
   process.name in ("bash", "dash", "sh", "tcsh", "csh", "zsh", "ksh", "fish")] by process.entity_id
  [network where host.os.type == "linux" and event.type == "start" and
   event.action == "connection_attempted"] by process.parent.entity_id

Install detection rules in Elastic Security

Detect Network Connection by Cups or Foomatic-rip Child in the Elastic Security detection engine by installing this rule into your Elastic Stack.

To setup this rule, check out the installation guide for Prebuilt Security Detection Rules(external, opens in a new tab or window).