Expert Insights on Cybersecurity for Mid-Market Businesses | Managed XDR Blog

Cybersecurity WOTW: Spray Attacks

Written by Katie MacDonald | Dec 16, 2024 6:35:33 PM

Password spray attacks are a growing threat to organizations. By systematically testing commonly used passwords across multiple accounts, attackers exploit weak remote access VPN credentials to gain unauthorized access. This type of attack can lead to compromised sensitive data, significant service disruptions, and reputational damage.

How to Mitigate Spray Attacks:

  • Implement Strong Authentication
    Enforce multi-factor authentication (MFA) to add an extra layer of security.
  • Harden Your Systems
    Regularly update software and patch known vulnerabilities.
  • Monitor for Anomalies
    Use advanced threat detection to identify unusual login patterns.

Emerging Threats

This week, notable threats observed across customer environments include:

  • Mirai Backdoor
    A notorious botnet tool that exploits IoT devices.
  • REvil Ransomware
    Known for high-profile extortion campaigns.
  • Sign1 Malware Campaign
    Leveraging sophisticated phishing tactics.

Actively Exploited Vulnerabilities

The following vulnerabilities demand immediate attention:

  1. Cleo Multiple Products Unrestricted File Upload (CVE-2024-50623)
    Allows attackers to upload malicious files, leading to data breaches.
  2. Microsoft CLFS Heap-Based Buffer Overflow (CVE-2024-49138)
    Exploitable for remote code execution.
  3. CyberPanel Default Permissions (CVE-2024-51378)
    Exposes sensitive configuration files.
  4. Ivanti Connect Secure Command Injection (CVE-2024-21887)
    Enables unauthorized remote commands.

Proactive Defense is Key

As attackers continue to refine their techniques, organizations must adopt a secure-by-design approach. Stay ahead by investing in advanced monitoring, hardening your systems, and educating employees on cybersecurity best practices.

📢 Take Action: Conduct regular security assessments and ensure your defenses are up to date.