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Coordinated Brute-Force Attacks on Apache Tomcat Manager: 295 Malicious IPs Identified

Discover the recent surge in brute-force attacks targeting Apache Tomcat Manager interfaces. Learn about the coordinated efforts and the 295 malicious IPs involved.

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By Vitus White
1 min read
Coordinated Brute-Force Attacks on Apache Tomcat Manager: 295 Malicious IPs Identified

TL;DR

Threat intelligence firm GreyNoise has issued a warning about a coordinated brute-force campaign targeting Apache Tomcat Manager interfaces. The company observed a significant increase in brute-force and login attempts on June 5, 2025, involving 295 unique IP addresses. This activity suggests deliberate efforts to identify and access exposed Tomcat services on a large scale.

Coordinated Brute-Force Attacks on Apache Tomcat Manager

Threat intelligence firm GreyNoise has recently warned of a coordinated brute-force campaign targeting Apache Tomcat Manager interfaces. The company reported a surge in brute-force and login attempts on June 5, 2025. This activity indicates deliberate efforts to identify and access exposed Tomcat services on a large scale1.

Key Findings

  • Surge in Activity: GreyNoise observed a significant increase in brute-force and login attempts on June 5, 2025.
  • Malicious IPs: A total of 295 unique IP addresses were involved in these coordinated attacks.
  • Target: Apache Tomcat Manager interfaces were the primary focus of these malicious activities.

Implications

The coordinated nature of these attacks suggests that threat actors are actively seeking to exploit vulnerable Tomcat services. Organizations using Apache Tomcat should take immediate steps to secure their systems:

  • Strengthen Credentials: Ensure that all usernames and passwords are strong and unique.
  • Limit Access: Restrict access to the Tomcat Manager interface to trusted IP addresses only.
  • Regular Updates: Keep Apache Tomcat and all related software up to date with the latest security patches.

For more details, visit the full article: source

Conclusion

The recent surge in brute-force attacks targeting Apache Tomcat Manager interfaces highlights the importance of robust security measures. Organizations must remain vigilant and proactive in securing their systems to mitigate potential threats. Future implications may include more sophisticated attacks, emphasizing the need for continuous monitoring and updates.

References

  1. (2025). “295 Malicious IPs Launch Coordinated Brute-Force Attacks on Apache Tomcat Manager”. The Hacker News. Retrieved 2025-06-11. ↩︎

Cybersecurity & Data Protection, Vulnerabilities
cybersecurity threat-intelligence apache tomcat
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