CVE-2025-25015 is a critical vulnerability affecting Elastic's Kibana, with a CVSS score of 9.9. This vulnerability allows arbitrary code execution via a crafted file upload and specific HTTP requests. It poses a significant risk to organizations, especially considering that exploitation requires only a Viewer role in affected Kibana versions. Organizations should prioritize patching immediately.
The vulnerability exists in Kibana versions >= 8.15.0 and < 8.17.1, while in versions 8.17.1 and 8.17.2, it is only exploitable by users with specific roles that include the privileges: fleet-all, integrations-all, and actions:execute-advanced-connectors. This highlights the potential for severe impact if left unaddressed.
Risk to organizations includes unauthorized access and the ability to execute arbitrary code, which can lead to data breaches or further network compromise. Given the severity of this vulnerability, immediate action is recommended to mitigate risks.
As of now, no known exploits have been reported, but the critical nature of this vulnerability warrants a proactive approach in remediation efforts. Organizations must ensure they are running the latest patched versions of Kibana to safeguard their systems.
Vulnerability Details
The CVE-2025-25015 vulnerability is classified as a prototype pollution issue, leading to arbitrary code execution. It has been assigned a CVSS score of 9.9, indicating a critical severity level due to the high impact on confidentiality, integrity, and availability. The affected product is Kibana, a component of the Elastic Stack, and the vendor responsible is Elastic. The vulnerability was published on March 5, 2025.
The CWE classification for this vulnerability is CWE-1321, which pertains to improper handling of prototype pollution. Security teams should be aware of this classification to ensure proper defensive strategies are implemented.
Technical Analysis
The root cause of this vulnerability stems from improper validation of user inputs during file uploads, allowing attackers to manipulate the prototype chain. The attack vector is network-based, meaning that it can be exploited remotely without physical access to the system. The attack complexity is categorized as low, with low privileges required for exploitation.
User interaction is not required for the exploitation of this vulnerability, increasing the risk of an attack. The impact on confidentiality, integrity, and availability is high, given that successful exploitation could lead to total system compromise.
Risk & Impact Analysis
Real-world deployment of Kibana with this vulnerability exposes organizations to significant risks, including unauthorized access and arbitrary code execution. The vulnerability allows attackers to exploit systems with minimal privileges, posing a serious threat to data security and system integrity.
The urgency for organizations to address this vulnerability is critical, as the potential blast radius could impact multiple users and systems, given the exploitation capabilities of this vulnerability. Organizations should prioritize patching immediately to mitigate these risks.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The vulnerability affects Kibana versions >= 8.15.0 and < 8.17.1. Users should ensure they upgrade to Kibana 8.17.3 or later to mitigate this issue. Organizations not on these versions are at risk and must take action to secure their systems.
Mitigation & Remediation
To mitigate this critical vulnerability, organizations should upgrade to Kibana version 8.17.3 or later. If an immediate upgrade is not feasible, consider implementing access controls to limit user roles that have the potential to exploit this vulnerability.
Organizations should also conduct a security assessment to identify any other existing vulnerabilities and ensure that proper security configurations are in place. Continuous security testing, such as continuous penetration testing, is recommended to proactively identify weaknesses in systems.
Detection Guidance
Organizations should monitor logs for any unusual activity related to file uploads or HTTP requests that could indicate exploitation attempts. Behavioral anomalies, such as unexpected system behavior following file uploads, should also be flagged for further investigation.
AppSecure Threat Intelligence Insight
The emergence of CVE-2025-25015 highlights ongoing risks associated with prototype pollution vulnerabilities. Security teams should remain vigilant and continuously evaluate their security postures against such vulnerabilities. Lessons learned from this incident can guide the implementation of more robust security measures.
For organizations seeking to enhance their security, conducting a thorough application security assessment can provide critical insights into potential vulnerabilities.
Additionally, integrating insights from threat intelligence services can help organizations stay ahead of evolving attack trends and enhance their defensive strategies.
For further guidance and strategies, organizations can refer to resources such as the penetration testing methodology and other security best practices outlined in our blog.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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