Ruben Groenewoud
a7ff449fbc
* [Rule Tuning] Doing some quick tunings * updated_date bump * Update rules/linux/discovery_linux_modprobe_enumeration.toml * Update rules/linux/discovery_linux_modprobe_enumeration.toml * Update rules/linux/discovery_linux_sysctl_enumeration.toml * Update rules/linux/persistence_init_d_file_creation.toml * Update rules/linux/persistence_rc_script_creation.toml * Update rules/linux/persistence_shared_object_creation.toml * deprecate rule * deprecate rule * Update execution_abnormal_process_id_file_created.toml * Update discovery_kernel_module_enumeration_via_proc.toml * Update discovery_linux_modprobe_enumeration.toml * Update execution_remote_code_execution_via_postgresql.toml * Update discovery_potential_syn_port_scan_detected.toml * Added 2 tunings, sorry I missed those.. * One more tune * Update discovery_suspicious_proc_enumeration.toml
54 lines
1.9 KiB
TOML
54 lines
1.9 KiB
TOML
[metadata]
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creation_date = "2022/06/20"
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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 suspicious activities that may indicate an attacker attempting to execute arbitrary code within
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a PostgreSQL environment. Attackers can execute code via PostgreSQL as a result of gaining unauthorized access to a
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public facing PostgreSQL database or exploiting vulnerabilities, such as remote command execution and SQL injection
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attacks, which can result in unauthorized access and malicious actions, and facilitate post-exploitation activities
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for unauthorized access and malicious actions.
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"""
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from = "now-9m"
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index = ["logs-endpoint.events.*", "endgame-*"]
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language = "eql"
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license = "Elastic License v2"
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name = "Potential Code Execution via Postgresql"
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risk_score = 47
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rule_id = "2a692072-d78d-42f3-a48a-775677d79c4e"
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severity = "medium"
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tags = ["Domain: Endpoint", "OS: Linux", "Use Case: Threat Detection", "Tactic: Execution", "Data Source: Elastic Endgame"]
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type = "eql"
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query = '''
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process where host.os.type == "linux" and event.action in ("exec", "exec_event", "fork", "fork_event") and
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event.type == "start" and user.name == "postgres" and (
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(process.parent.args : "*sh" and process.parent.args : "echo*") or
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(process.args : "*sh" and process.args : "echo*")
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) and not process.parent.name : "puppet"
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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 = "T1059"
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name = "Command and Scripting Interpreter"
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reference = "https://attack.mitre.org/techniques/T1059/"
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[[rule.threat.technique.subtechnique]]
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id = "T1059.004"
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name = "Unix Shell"
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reference = "https://attack.mitre.org/techniques/T1059/004/"
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[rule.threat.tactic]
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id = "TA0002"
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name = "Execution"
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reference = "https://attack.mitre.org/tactics/TA0002/"
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