Ruben Groenewoud
e904ebb760
* [New Rule] PE via Container Misconfiguration * fixed boolean comparison unit test error * Update privilege_escalation_container_util_misconfiguration.toml * Update rules/linux/privilege_escalation_container_util_misconfiguration.toml Co-authored-by: Justin Ibarra <16747370+brokensound77@users.noreply.github.com> --------- Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com> Co-authored-by: Justin Ibarra <16747370+brokensound77@users.noreply.github.com>
67 lines
2.8 KiB
TOML
67 lines
2.8 KiB
TOML
[metadata]
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creation_date = "2023/07/31"
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integration = ["endpoint"]
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maturity = "production"
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min_stack_comments = "New fields added: required_fields, related_integrations, setup"
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min_stack_version = "8.3.0"
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updated_date = "2023/07/31"
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[rule]
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author = ["Elastic"]
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description = """
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This rule monitors for the execution of processes that interact with Linux containers through an interactive shell
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without root permissions. Utilities such as runc and ctr are universal command-line utilities leveraged to interact
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with containers via root permissions. On systems where the access to these utilities are misconfigured, attackers might
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be able to create and run a container that mounts the root folder or spawn a privileged container vulnerable to a
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container escape attack, which might allow them to escalate privileges and gain further access onto the host file system.
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"""
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from = "now-9m"
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index = ["logs-endpoint.events.*"]
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language = "eql"
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license = "Elastic License v2"
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name = "Potential Privilege Escalation via Container Misconfiguration"
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setup = """This rule leverages `session` fields, which requires that the collection of session data is enabled for Linux operating systems.
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The following steps should be performed in order to enable session data event collection on a Linux system.
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```
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Kibana -->
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Management -->
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Fleet -->
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Agent Policies -->
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Agent Policy with Elastic Defend installed -->
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Elastic Defend integration -->
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Enable the "Collect session data" box under "Event Collection" for "Linux"
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```
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More information on this topic and how to enable session data collection can be found at https://www.elastic.co/blog/secure-your-cloud-with-cloud-workload-protection-in-elastic-security.
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"""
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references = [
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"https://book.hacktricks.xyz/linux-hardening/privilege-escalation/runc-privilege-escalation",
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"https://book.hacktricks.xyz/linux-hardening/privilege-escalation/containerd-ctr-privilege-escalation"
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]
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risk_score = 47
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rule_id = "afe6b0eb-dd9d-4922-b08a-1910124d524d"
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severity = "medium"
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tags = ["Domain: Endpoint", "OS: Linux", "Use Case: Threat Detection", "Tactic: Privilege Escalation", "Domain: Container"]
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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.action == "exec" and event.type == "start" and (
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(process.name == "runc" and process.args == "run") or
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(process.name == "ctr" and process.args == "run" and process.args in ("--privileged", "--mount"))
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) and not user.Ext.real.id == "0" and not group.Ext.real.id == "0" and
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process.interactive == true and process.parent.interactive == true
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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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