Ruben Groenewoud
56e8e059b6
* [New Rules] Docker entrypoint netcon / nsenter escape * ++ * Update privilege_escalation_docker_escape_via_nsenter.toml * Update privilege_escalation_docker_escape_via_nsenter.toml * Better description formatting * Update execution_egress_connection_from_entrypoint_in_container.toml * Update privilege_escalation_docker_escape_via_nsenter.toml
51 lines
1.6 KiB
TOML
51 lines
1.6 KiB
TOML
[metadata]
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creation_date = "2024/07/10"
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integration = ["endpoint"]
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maturity = "production"
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updated_date = "2024/07/10"
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[rule]
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author = ["Elastic"]
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description = """
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This rule identifies a UID change event via `nsenter`. The `nsenter` command is used to enter a namespace, which is a
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way to isolate processes and resources. Attackers can use `nsenter` to escape from a container to the host, which can
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lead to privilege escalation and lateral movement.
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"""
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from = "now-9m"
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index = ["logs-endpoint.events.process*"]
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language = "eql"
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license = "Elastic License v2"
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name = "Docker Escape via Nsenter"
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references = ["https://www.cyberark.com/resources/threat-research-blog/the-route-to-root-container-escape-using-kernel-exploitation"]
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risk_score = 47
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rule_id = "5f3ab3ce-7b41-4168-a06a-68d2af8ebc88"
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severity = "medium"
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tags = [
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"Domain: Endpoint",
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"Domain: Container",
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"OS: Linux",
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"Use Case: Threat Detection",
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"Tactic: Privilege Escalation",
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"Data Source: Elastic Defend",
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]
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timestamp_override = "event.ingested"
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type = "eql"
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query = '''
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process where host.os.type == "linux" and event.type == "change" and event.action == "uid_change" and
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process.entry_leader.entry_meta.type == "container" and process.args == "nsenter" and
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process.args in ("-t", "--target") and process.args_count >= 4
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'''
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[[rule.threat]]
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framework = "MITRE ATT&CK"
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[[rule.threat.technique]]
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id = "T1611"
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name = "Escape to Host"
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reference = "https://attack.mitre.org/techniques/T1611/"
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[rule.threat.tactic]
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id = "TA0004"
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name = "Privilege Escalation"
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reference = "https://attack.mitre.org/tactics/TA0004/"
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