CVE-2024-8997

Okay, here’s a remediation/mitigation strategy for CVE-2024-8997, presented in Markdown format, based on the provided information.

Remediation/Mitigation Strategy: CVE-2024-8997 - Vestel EVC04 SQL Injection

1. Vulnerability Description:

  • CVE ID: CVE-2024-8997
  • Vulnerability Type: SQL Injection
  • Affected Product: Vestel EVC04 Configuration Interface
  • Affected Versions: Through 18.03.2025 (assumed to include all versions up to and including this date, unless otherwise specified by the vendor)
  • Description: The Vestel EVC04 Configuration Interface is vulnerable to SQL injection. Improper neutralization of special elements used in SQL commands allows attackers to inject arbitrary SQL code.

2. Severity:

  • CVSS Score: 9.8 (Critical)
  • Severity Level: Critical
  • Explanation: A CVSS score of 9.8 indicates a critical vulnerability. Successful exploitation can lead to complete compromise of the application and potentially the underlying system. SQL injection can allow attackers to read, modify, or delete sensitive data, execute arbitrary code, or potentially gain control of the server.

3. Known Exploits:

  • Based on the information provided, there are no specific, publicly detailed exploits listed. However, the nature of SQL Injection vulnerabilities means that generic SQL injection techniques are likely to be effective. An attacker could use readily available tools and techniques to craft malicious SQL queries. The lack of specific exploit information does not diminish the criticality of this vulnerability.

4. Remediation Strategy:

The primary goal is to eliminate the possibility of injecting malicious SQL code through the EVC04 Configuration Interface.

  • A. Input Validation & Sanitization:

    • Description: Implement robust input validation and sanitization on all user-supplied input that is used in SQL queries.
    • Implementation:
      • Whitelisting: Where possible, use whitelisting to define acceptable input values. Reject any input that does not match the defined whitelist.
      • Data Type Enforcement: Ensure that input data types match the expected types in the database schema (e.g., integers are treated as integers, dates as dates).
      • Escaping/Quoting: Properly escape or quote all user-supplied input before using it in SQL queries. Use the database’s built-in escaping/quoting functions (e.g., mysql_real_escape_string in PHP, parameterized queries in most languages).
      • Regular Expressions: Use regular expressions to validate input format and ensure it conforms to expected patterns.
    • Testing: Thoroughly test all input validation and sanitization mechanisms to ensure they are effective against a variety of SQL injection payloads.

  • B. Parameterized Queries (Prepared Statements):

    • Description: Use parameterized queries (also known as prepared statements) instead of directly concatenating user input into SQL queries.

    • Implementation: Parameterized queries treat user input as data, not as part of the SQL command. This prevents the database from interpreting malicious SQL code within the input. Most database drivers and programming languages support parameterized queries.

    • Example (Python with psycopg2 for PostgreSQL): import psycopg2

      conn = psycopg2.connect(“dbname=mydb user=myuser password=mypassword”) cur = conn.cursor()

      sql = “SELECT * FROM users WHERE username = %s AND password = %s” username = input(“Enter username: “) password = input(“Enter password: “)

      cur.execute(sql, (username, password)) # User input is passed as a tuple

      rows = cur.fetchall() print(rows)

      cur.close() conn.close()

  • C. Least Privilege Principle:

    • Description: Ensure that the database user account used by the EVC04 Configuration Interface has only the minimum necessary privileges to perform its required tasks.
    • Implementation: Do not use a database user with root or administrator privileges. Create a dedicated user with limited access to only the tables and operations required by the application. This limits the potential damage if an SQL injection attack is successful.

  • D. Web Application Firewall (WAF):

    • Description: Deploy a Web Application Firewall (WAF) to detect and block SQL injection attacks.
    • Implementation: Configure the WAF with rulesets that specifically target SQL injection vulnerabilities. WAFs can often detect and block common SQL injection patterns before they reach the application. Regularly update the WAF’s rulesets to protect against new and emerging attack techniques.

  • E. Regular Security Audits and Penetration Testing:

    • Description: Conduct regular security audits and penetration testing to identify and address vulnerabilities.
    • Implementation: Engage security professionals to perform penetration testing of the EVC04 Configuration Interface. These tests should specifically target SQL injection vulnerabilities. Review the application’s code for potential vulnerabilities and security weaknesses.

  • F. Patching:

    • Description: Apply any security patches or updates released by Vestel for the EVC04 Configuration Interface as soon as they become available.
    • Implementation: Monitor Vestel’s security advisories for updates related to this vulnerability (CVE-2024-8997) or other security issues. Establish a patching schedule to ensure that updates are applied in a timely manner. Since the affected version is until 2025-03-18, it indicates the software is past its end of life, or needs to be updated / re-evaluated.

5. Mitigation Strategy (If Immediate Remediation is Not Possible):

If immediate remediation is not possible, implement the following mitigation measures to reduce the risk:

  • A. Network Segmentation: Isolate the EVC04 Configuration Interface on a separate network segment to limit the potential impact of a successful attack.

  • B. Access Control: Restrict access to the EVC04 Configuration Interface to only authorized users. Implement strong authentication mechanisms (e.g., multi-factor authentication) to prevent unauthorized access.

  • C. Monitoring and Alerting: Implement robust monitoring and alerting systems to detect suspicious activity. Monitor database logs for unusual SQL queries or error messages that may indicate an attempted SQL injection attack.

6. Verification:

After implementing the remediation steps, it is crucial to verify that the vulnerability has been successfully addressed.

  • A. Retesting: Repeat penetration testing to confirm that SQL injection attacks are no longer possible.

  • B. Code Review: Conduct a thorough code review to ensure that all input validation and sanitization mechanisms are working correctly.

  • C. Monitoring: Continuously monitor the application and database for any signs of suspicious activity.

Important Considerations:

  • Vendor Communication: Contact Vestel directly to report the vulnerability and inquire about available patches or updates.
  • Documentation: Document all remediation and mitigation steps taken.
  • Training: Provide security training to developers and system administrators to raise awareness of SQL injection vulnerabilities and best practices for secure coding.
  • Regular Review: Review and update this remediation strategy on a regular basis to ensure it remains effective.

This comprehensive remediation/mitigation strategy aims to address the identified SQL injection vulnerability and protect the Vestel EVC04 Configuration Interface from potential attacks. Remember to prioritize patching and proper input validation/sanitization to achieve the best level of security.

Assigner

Date

  • Published Date: 2025-03-18 14:15:41
  • Updated Date: 2025-03-18 14:15:41

More Details

CVE-2024-8997