CVE-2025-9842

Executive Summary

CVE-2025-9842 is a publicly disclosed information disclosure vulnerability in Das Parking Management System (停车场管理系统) version 6.2.0. The flaw resides in the /Operator/Search endpoint, allowing remote attackers to extract sensitive information without authentication. The exploit is publicly available, and no official patch has been released. This poses a significant risk to organizations using this system for parking management, as it can lead to unauthorized access to operational data, customer records, or system configuration details.

Supply Chain & Package Security

This vulnerability is not related to NPM, PyPI, Go, or Ruby packages. It is a standalone application vulnerability in a proprietary parking management system.

CVSS Breakdown & Threat Level

The CVSS score is listed as 0.0, indicating insufficient data for scoring. However, based on the description and public exploit availability, a reasonable assessment is:

• Attack Vector: Network (AV:N)
• Attack Complexity: Low (AC:L)
• Privileges Required: None (PR:N)
• User Interaction: None (UI:N)
• Scope: Unchanged (S:U)
• Confidentiality Impact: High (C:H)
• Integrity Impact: None (I:N)
• Availability Impact: None (A:N)
• Base Score: 7.5 (High)

Threat Level: High – due to remote exploitability, no authentication required, and public exploit code.

Deep Dive & Mechanics

The vulnerability is an information disclosure (CWE-200) in the /Operator/Search endpoint of Das Parking Management System 6.2.0. The endpoint likely returns sensitive data in response to search queries without proper access controls or input validation. Attackers can craft HTTP requests to enumerate or extract data such as user credentials, parking records, or system configuration.

Root Cause: Lack of authorization checks on the /Operator/Search API endpoint, combined with verbose error messages or direct data exposure.

Attack Vector: Remote, unauthenticated HTTP requests to the vulnerable endpoint.

Impact: An attacker can retrieve sensitive information, potentially leading to further compromise of the system or connected networks.

Vulnerable vs. Patched Code

Since no patch is available, a comparison cannot be made. However, a secure implementation would include:

• Authentication and authorization checks before processing search requests.
• Input sanitization and parameterized queries to prevent injection.
• Restricting the data returned to only non-sensitive fields.

Vulnerable Code (Hypothetical):

@app.route('/Operator/Search', methods=['GET'])
def search():
    query = request.args.get('q')
    results = db.execute(f"SELECT * FROM records WHERE name LIKE '%{query}%'")
    return jsonify(results)

Patched Code (Hypothetical):

@app.route('/Operator/Search', methods=['GET'])
@login_required
def search():
    query = sanitize_input(request.args.get('q'))
    results = db.execute("SELECT id, name FROM records WHERE name LIKE ?", ('%' + query + '%',))
    return jsonify(results)

Exploitation & Lab Setup

Red Team

Prerequisites:

• Target running Das Parking Management System 6.2.0
• Network access to the /Operator/Search endpoint

Exploit Steps:

1. Identify the target IP and port (default HTTP/HTTPS).
2. Send a crafted GET request to /Operator/Search with a search parameter.
3. Observe the response for sensitive data.

Example Exploit (using curl):

curl -X GET "http://target-ip/Operator/Search?q=admin"

Expected Output: JSON or XML containing sensitive records.

Blue Team

Detection:

• Monitor HTTP requests to /Operator/Search from unauthorized IPs.
• Look for unusual search patterns or large data exfiltration.

Mitigation:

• Implement network segmentation to restrict access to the management interface.
• Apply a Web Application Firewall (WAF) rule to block requests to /Operator/Search from untrusted sources.
• If possible, disable the endpoint or add authentication.

Indicators of Compromise (IOCs)

• Network: HTTP GET requests to /Operator/Search with parameters like q=, search=, or query=.
• Logs: Unauthorized access attempts to /Operator/Search from external IPs.
• File: Unexpected large responses from the /Operator/Search endpoint.

Example IOC (Suricata rule):

alert http any any -> any any (msg:"CVE-2025-9842 - Das Parking Management System Information Disclosure"; flow:to_server; content:"/Operator/Search"; http_uri; classtype:attempted-recon; sid:1000001; rev:1;)

Detection Engineering

YARA Rule

rule CVE_2025_9842_Das_Parking_Info_Disclosure {
    meta:
        description = "Detects exploitation attempts of CVE-2025-9842 in Das Parking Management System"
        author = "Valters IT"
        date = "2025-04-10"
        reference = "https://nvd.nist.gov/vuln/detail/CVE-2025-9842"
    strings:
        $uri = "/Operator/Search"
        $param = "q="
    condition:
        $uri and $param
}

Sigma Rule

title: CVE-2025-9842 - Das Parking Management System Information Disclosure
id: 12345678-1234-1234-1234-123456789012
status: experimental
description: Detects HTTP requests to the vulnerable /Operator/Search endpoint
author: Valters IT
date: 2025/04/10
logsource:
    category: webserver
    product: apache
detection:
    selection:
        cs-uri-query|contains: '/Operator/Search'
    condition: selection
falsepositives:
    - Legitimate administrative access
level: high

Suricata Rule

alert http any any -> any any (msg:"CVE-2025-9842 - Das Parking Management System Information Disclosure"; flow:to_server; content:"/Operator/Search"; http_uri; classtype:attempted-recon; sid:1000001; rev:1;)

Remediation & Mitigation

Immediate Actions:

1. Restrict network access to the /Operator/Search endpoint using firewall rules or VPN.
2. Implement authentication for the endpoint if not already present.
3. Monitor logs for suspicious activity targeting this endpoint.

Long-term Fix:

• Apply a vendor patch when available.
• Upgrade to a patched version of the software.
• Conduct a security audit of the application to identify similar vulnerabilities.

Workaround:

• Disable the /Operator/Search endpoint by modifying the web server configuration (e.g., Apache .htaccess or Nginx location block).

Report generated by Valters IT DevSecOps Intelligence Unit