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security: add data exfiltration detection to dangerous command patterns #7993

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security: add data exfiltration detection to dangerous command patterns #7993

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9 changes: 9 additions & 0 deletions tools/approval.py
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Original file line number Diff line number Diff line change
Expand Up @@ -130,6 +130,15 @@ def get_current_session_key(default: str = "default") -> str:
# a script is first made executable then immediately run. The script
# content may contain dangerous commands that individual patterns miss.
(r'\bchmod\s+\+x\b.*[;&|]+\s*\./', "chmod +x followed by immediate execution"),
# Data exfiltration vectors
(r'\b(nc|ncat|socat)\b.*\d+\.\d+\.\d+\.\d+', "netcat to external IP"),
(r'/dev/tcp/', "bash /dev/tcp exfiltration"),
(r'/dev/udp/', "bash /dev/udp exfiltration"),
(r'\bopenssl\s+s_client\s+-connect\b', "openssl outbound connection"),
(r'\bcurl\b.*(-d|--data|--data-binary|--data-urlencode|--upload-file)\b', "curl with data upload"),
(r'\bwget\b.*(--post-data|--post-file)\b', "wget with data upload"),
# Credential file reads via common tools
(r'\b(cat|head|tail|less|more|bat)\b.*(\.ssh/|aws/credentials|\.env|\.netrc|\.gnupg/|\.kube/config)', "read credential file"),
]


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