LOL - totally new version, it actually works this time.
still not sure about the nmap input... I should really look into that.
This commit is contained in:
Nuno
parent
f20f2513bf
commit
1caa123374
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@ -1,70 +1,75 @@
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import os
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import sys
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from ipaddress import ip_network, ip_address
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#!/usr/bin/env python3
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import argparse
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from ipaddress import ip_network
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from subprocess import run
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def parse_arguments():
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parser = argparse.ArgumentParser(
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description='👾 ExclusionEnforcer: Your all-in-one tool for scope grinding and firewall rule manipulation. ✨',
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epilog='''Example usage:
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python3 scopegrinder.py scope.txt deny.txt output.txt RuleName
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python3 scopegrinder.py -r RuleName''')
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parser.add_argument('-s', '--scope',
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help='Path to the file containing the scope IP ranges. Each IP or IP range should be on a new line. Required unless -r is set.')
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parser.add_argument('-d', '--deny',
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help='Path to the file containing the deny list IP ranges. Each IP or IP range should be on a new line. Required unless -r is set.')
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parser.add_argument('-o', '--output',
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help='Path to the file where to write the valid IPs. The file will be created if it does not exist. Required unless -r is set.')
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parser.add_argument('-n', '--rule_name',
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help='Name to be used when creating or removing firewall rules. This will be used in the comment field of the iptables rules.')
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parser.add_argument('-r', '--remove',
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help='If set with rule name, the script will remove the specified iptables rules instead of adding them. When this is set, scope, deny and output parameters can be omitted.')
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args = parser.parse_args()
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if args.remove:
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if any([args.scope, args.deny, args.output]):
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parser.error("--remove should not be used with scope, deny, or output parameters.")
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else:
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if not all([args.scope, args.deny, args.output, args.rule_name]):
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parser.error("When not using --remove, the scope, deny, output and rule_name parameters are required.")
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return args
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def expand_ip_ranges(ip_ranges):
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for ip_range in ip_ranges:
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if '-' in ip_range: # If IP range is a hyphenated range
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start_ip, end_ip = ip_range.split('-')
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start_last_octet = start_ip.split('.')[-1]
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end_last_octet = end_ip.split('.')[-1]
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start_ip_prefix = start_ip.rsplit('.', 1)[0]
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for i in range(int(start_last_octet), int(end_last_octet) + 1):
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yield f"{start_ip_prefix}.{i}"
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else: # If IP range is a CIDR notation
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for ip in ip_network(ip_range):
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yield str(ip)
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for ip in ip_network(ip_range):
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yield str(ip)
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def add_to_iptables(deny_list_ips, rule_name):
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for ip in deny_list_ips:
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os.system(f"iptables -A OUTPUT -d {ip} -j DROP -m comment --comment \"{rule_name}\"")
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print(f"✅ Applied iptables rules to block outgoing traffic to deny list IPs.")
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def remove_from_iptables(rule_name):
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os.system(f"iptables -S | grep '\"{rule_name}\"' | sed 's/-A/-D/' | while read -r line ; do iptables $line ; done")
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print(f"❌ Removed iptables rules blocking outgoing traffic to deny list IPs.")
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def main(scope_file_path, deny_list_file_path, output_file_path=None, rule_name=None, remove=False):
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with open(scope_file_path, 'r') as f:
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scope_ips = set(line.strip() for line in f) # Load scope IPs
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with open(deny_list_file_path, 'r') as f:
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deny_list_ips = set(expand_ip_ranges(line.strip() for line in f)) # Load and expand deny list IPs
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valid_ips = scope_ips - deny_list_ips # Compute valid IPs
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if output_file_path: # Write valid IPs to output file if provided
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with open(output_file_path, 'w') as f:
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for ip in valid_ips:
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f.write(ip + '\n')
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print(f"📝 Valid IP addresses have been written to {output_file_path}.")
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else: # Print valid IPs to console otherwise
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def write_valid_ips(scope_file, deny_file, output_file):
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with open(scope_file) as f:
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scope_ips = set(expand_ip_ranges(line.strip() for line in f))
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with open(deny_file) as f:
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deny_ips = set(expand_ip_ranges(line.strip() for line in f))
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valid_ips = scope_ips - deny_ips
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with open(output_file, 'w') as f:
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for ip in valid_ips:
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print(ip)
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print("🖨️ Valid IP addresses have been printed to the console.")
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print(ip, file=f)
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return valid_ips
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if rule_name: # Apply/remove iptables rules if rule name is provided
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def update_firewall_rules(valid_ips, rule_name, remove):
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for ip in valid_ips:
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if remove:
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remove_from_iptables(rule_name)
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cmd = ['iptables', '-D', 'OUTPUT', '-d', ip, '-j', 'DROP', '-m', 'comment', '--comment', rule_name]
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else:
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add_to_iptables(deny_list_ips, rule_name)
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cmd = ['iptables', '-A', 'OUTPUT', '-d', ip, '-j', 'DROP', '-m', 'comment', '--comment', rule_name]
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run(cmd)
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if __name__ == "__main__":
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if len(sys.argv) < 3:
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print("Usage: python ExclusionEnforcer.py <scope_file> <deny_list_file> [output_file] [--iptables=<rule_name>] [--remove]")
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print("\nArguments:")
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print(" scope_file\t\tPath to the file containing the scope IPs")
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print(" deny_list_file\tPath to the file containing the deny list IPs")
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print(" output_file\t\t(Optional) Path to the output file")
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print(" --iptables=<rule_name>\t(Optional) Apply iptables rules to block outgoing traffic to deny list IPs and tag them with a rule name")
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print(" --remove\t\t(Optional) Remove iptables rules tagged with the rule name provided with --iptables")
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sys.exit(1)
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def main():
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args = parse_arguments()
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scope_file_path = sys.argv[1]
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deny_list_file_path = sys.argv[```python
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2]
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output_file_path = sys.argv[3] if len(sys.argv) > 3 and not sys.argv[3].startswith('--') else None
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rule_name = sys.argv[sys.argv.index('--iptables')+1] if '--iptables' in sys.argv else None
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remove = True if '--remove' in sys.argv else False
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if args.remove:
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update_firewall_rules([], args.remove, True)
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else:
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valid_ips = write_valid_ips(args.scope, args.deny, args.output)
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update_firewall_rules(valid_ips, args.rule_name, False)
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main(scope_file_path, deny_list_file_path, output_file_path, rule_name, remove)
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print("💥 ExclusionEnforcer has done its job. Check your scope and firewall rules. 💥")
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if __name__ == '__main__':
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main()
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