Cacti is an open-source framework used for operational monitoring and fault management. It is widely employed in various IT environments to visualize network performance data via graphs. The software provides a flexible and user-friendly platform for network administrators to monitor their network infrastructure, including servers, switches, and other network devices. Cacti's plugin architecture allows for expandability, offering custom features tailored to specific needs. It is utilized by both small businesses and large enterprises to ensure the smooth operation of their IT services.
The Deserialization of Untrusted Data vulnerability in Cacti allows attackers to execute arbitrary code by manipulating the serialized objects sent to the server. This flaw arises due to inadequate validation of serialized data. Exploiting this vulnerability can lead to unauthorized access to the system, data manipulation, or disruption of service. It specifically affects Cacti's functionality where serialized data is processed, posing a significant security risk if not properly mitigated.
Cacti versions prior to 1.2.25 contain two instances where untrusted data is deserialized without proper validation or sanitization. This flaw exists in specific endpoints of the Cacti application, making it vulnerable to attacks that could lead to remote code execution. The vulnerability is triggered when specially crafted serialized data is sent to the affected endpoints, exploiting the lack of a secure deserialization process. The technical aspect of the vulnerability includes manipulating PHP object injection points, which can lead to the execution of malicious code within the context of the application.
If this vulnerability is exploited, attackers could execute arbitrary code on the server running Cacti, leading to potential data theft, unauthorized access to network monitoring data, and disruption of the monitoring service. This could have dire consequences for businesses relying on Cacti for network management, including loss of sensitive data, operational downtime, and compromise of network security. The impact of this vulnerability underscores the importance of secure coding practices and timely updates.
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References
- https://github.com/Cacti/cacti/security/advisories/GHSA-77rf-774j-6h3p
- https://nvd.nist.gov/vuln/detail/CVE-2023-30534
- https://www.fastly.com/blog/cve-2023-30534-insecure-deserialization-in-cacti-prior-to-1-2-25
- https://lists.fedoraproject.org/archives/list/[email protected]/message/CFH3J2WVBKY4ZJNMARVOWJQK6PSLPHFH/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/WOQFYGLZBAWT4AWNMO7DU73QXWPXTCKH/
- Update Cacti to version 1.2.25 or later to address this vulnerability.
- Regularly apply security patches to all software to protect against known vulnerabilities.
- Validate and sanitize all input data to prevent malicious data from being processed.
- Implement proper error handling and logging to detect and respond to potential attacks.
- Consider using security tools or services that specialize in detecting deserialization vulnerabilities.
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