Justin Ibarra
52 lines
1.4 KiB
TOML
52 lines
1.4 KiB
TOML
[metadata]
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creation_date = "2021/01/27"
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maturity = "production"
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updated_date = "2021/03/03"
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[rule]
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author = ["Elastic"]
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description = """
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Identifies modifications to the root crontab file. Adversaries may overwrite this file to gain code execution with root
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privileges by exploiting privileged file write or move related vulnerabilities.
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"""
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from = "now-9m"
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index = ["auditbeat-*", "logs-endpoint.events.*"]
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language = "kuery"
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license = "Elastic License v2"
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name = "Privilege Escalation via Root Crontab File Modification"
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references = [
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"https://phoenhex.re/2017-06-09/pwn2own-diskarbitrationd-privesc",
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"https://www.exploit-db.com/exploits/42146",
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]
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risk_score = 73
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rule_id = "0ff84c42-873d-41a2-a4ed-08d74d352d01"
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severity = "high"
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tags = ["Elastic", "Host", "macOS", "Threat Detection", "Privilege Escalation"]
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timestamp_override = "event.ingested"
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type = "query"
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query = '''
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event.category:file and not event.type:deletion and
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file.path:/private/var/at/tabs/root and not process.executable:/usr/bin/crontab
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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 = "T1053"
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name = "Scheduled Task/Job"
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reference = "https://attack.mitre.org/techniques/T1053/"
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[[rule.threat.technique.subtechnique]]
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id = "T1053.003"
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name = "Cron"
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reference = "https://attack.mitre.org/techniques/T1053/003/"
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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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