shashank-elastic
91 lines
4.1 KiB
TOML
91 lines
4.1 KiB
TOML
[metadata]
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creation_date = "2023/09/05"
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integration = ["endpoint"]
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maturity = "production"
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updated_date = "2024/05/21"
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[rule]
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author = ["Elastic"]
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description = """
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This detection rule monitors for the execution of a system command with setuid or setgid capabilities via Python,
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followed by a uid or gid change to the root user. This sequence of events may indicate successful privilege escalation.
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Setuid (Set User ID) and setgid (Set Group ID) are Unix-like OS features that enable processes to run with elevated
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privileges, based on the file owner or group. Threat actors can exploit these attributes to escalate privileges to the
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privileges that are set on the binary that is being executed.
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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 Python cap_setuid"
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risk_score = 47
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rule_id = "a0ddb77b-0318-41f0-91e4-8c1b5528834f"
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setup = """## Setup
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This rule requires data coming in from Elastic Defend.
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### Elastic Defend Integration Setup
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Elastic Defend is integrated into the Elastic Agent using Fleet. Upon configuration, the integration allows
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the Elastic Agent to monitor events on your host and send data to the Elastic Security app.
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#### Prerequisite Requirements:
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- Fleet is required for Elastic Defend.
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- To configure Fleet Server refer to the [documentation](https://www.elastic.co/guide/en/fleet/current/fleet-server.html).
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#### The following steps should be executed in order to add the Elastic Defend integration on a Linux System:
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- Go to the Kibana home page and click "Add integrations".
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- In the query bar, search for "Elastic Defend" and select the integration to see more details about it.
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- Click "Add Elastic Defend".
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- Configure the integration name and optionally add a description.
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- Select the type of environment you want to protect, either "Traditional Endpoints" or "Cloud Workloads".
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- Select a configuration preset. Each preset comes with different default settings for Elastic Agent, you can further customize these later by configuring the Elastic Defend integration policy. [Helper guide](https://www.elastic.co/guide/en/security/current/configure-endpoint-integration-policy.html).
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- We suggest to select "Complete EDR (Endpoint Detection and Response)" as a configuration setting, that provides "All events; all preventions"
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- Enter a name for the agent policy in "New agent policy name". If other agent policies already exist, you can click the "Existing hosts" tab and select an existing policy instead.
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For more details on Elastic Agent configuration settings, refer to the [helper guide](https://www.elastic.co/guide/en/fleet/8.10/agent-policy.html).
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- Click "Save and Continue".
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- To complete the integration, select "Add Elastic Agent to your hosts" and continue to the next section to install the Elastic Agent on your hosts.
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For more details on Elastic Defend refer to the [helper guide](https://www.elastic.co/guide/en/security/current/install-endpoint.html).
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"""
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severity = "medium"
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tags = [
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"Domain: Endpoint",
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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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type = "eql"
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query = '''
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sequence by host.id, process.entity_id with maxspan=1s
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[process where host.os.type == "linux" and event.type == "start" and event.action == "exec" and
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process.args : "import os;os.set?id(0);os.system(*)" and process.args : "*python*" and user.id != "0"]
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[process where host.os.type == "linux" and event.action in ("uid_change", "gid_change") and event.type == "change" and
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(user.id == "0" or group.id == "0")]
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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 = "T1068"
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name = "Exploitation for Privilege Escalation"
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reference = "https://attack.mitre.org/techniques/T1068/"
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[[rule.threat.technique]]
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id = "T1548"
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name = "Abuse Elevation Control Mechanism"
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reference = "https://attack.mitre.org/techniques/T1548/"
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[[rule.threat.technique.subtechnique]]
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id = "T1548.001"
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name = "Setuid and Setgid"
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reference = "https://attack.mitre.org/techniques/T1548/001/"
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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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