A regarding growth has emerged with the energetic exploitation of Apache Tomcat servers by the lately disclosed vulnerability, CVE-2025-24813.
This vulnerability permits attackers to doubtlessly execute distant code (RCE) if efficiently exploited.
The cybersecurity agency GreyNoise has recognized a number of IPs concerned in these assaults throughout a number of areas, highlighting the urgency for organizations to replace their programs instantly.
CVE-2025-24813: A Rising Menace
CVE-2025-24813 is able to enabling distant code execution, which poses important dangers to the safety of programs operating Apache Tomcat.
The excellent news is that the present exploitation appears restricted to naive attackers utilizing publicly out there proof-of-concept (PoC) code.
Nevertheless, this might be a precursor to extra refined assaults because the vulnerability turns into broadly recognized.
GreyNoise has created a selected CVE-2025-24813 tag to assist defenders observe and reply to those malicious actions effectively.
Since March 17, 2025, GreyNoise has detected 4 distinctive IPs trying to use this vulnerability.
These attackers are utilizing a partial PUT technique to inject malicious payloads, which might result in arbitrary code execution on weak programs. The geographic distribution of those makes an attempt highlights a various vary of targets:
- Geographic Distribution: Nearly all of exploit makes an attempt have been directed at programs in america, Japan, India, South Korea, and Mexico, with over 70% of periods geared toward U.S.-based programs.
- Assault Origin: The earliest exploitation makes an attempt have been noticed on March 11, however important exercise was famous ranging from a Latvia-based IP on March 18. Subsequent makes an attempt have been traced to Italy, america, and China. Notably, two of those IPs are linked to a recognized VPN service, indicating potential evasion ways.
Mitigations & Suggestions
Given the seriousness of CVE-2025-24813 and the continuing exploitation, organizations should take fast motion to safe their programs:
- Apply Patches: Organizations ought to promptly apply the newest safety patches for Apache Tomcat.
- Monitor Internet Server Logs: Recurrently monitor for surprising PUT requests to detect potential assaults.
- Deploy WAF Guidelines: Configure Internet Software Firewall (WAF) guidelines to dam malicious payloads successfully.
- Use GreyNoise Intelligence: Make the most of GreyNoise’s real-time monitoring capabilities to determine and block malicious IPs.
Organizations ought to assess their Apache Tomcat deployments urgently and apply patches to mitigate the dangers related to CVE-2025-24813.
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