CVE-2018-18245 : What You Need to Know
Learn about CVE-2018-18245 affecting Nagios Core version 4.4.2. Understand the impact, exploitation mechanism, and mitigation steps to secure your systems against this cross-site scripting vulnerability.
Nagios Core version 4.4.2 has a cross-site scripting vulnerability in the alert summary reports of plugin results, allowing for the injection of malicious scripts.
Understanding CVE-2018-18245
This CVE involves a security issue in Nagios Core version 4.4.2 that enables cross-site scripting attacks through manipulated plugin results.
What is CVE-2018-18245?
The vulnerability in Nagios Core version 4.4.2 allows attackers to insert malicious scripts via the alert summary reports of plugin results, potentially leading to unauthorized access or data theft.
The Impact of CVE-2018-18245
This vulnerability could be exploited by injecting a SCRIPT element through a modified check_load plugin to NRPE, compromising the security and integrity of the affected systems.
Technical Details of CVE-2018-18245
Nagios Core version 4.4.2 is susceptible to a cross-site scripting vulnerability that can be leveraged by attackers to execute malicious scripts.
Vulnerability Description
The vulnerability in Nagios Core version 4.4.2 allows for the execution of malicious scripts through the alert summary reports of plugin results, posing a significant security risk.
Affected Systems and Versions
- Product: Nagios Core
- Vendor: N/A
- Version: 4.4.2
Exploitation Mechanism
Attackers can exploit this vulnerability by injecting a SCRIPT element via a modified check_load plugin to NRPE, potentially compromising the security of the system.
Mitigation and Prevention
To address CVE-2018-18245, immediate steps and long-term security practices are crucial.
Immediate Steps to Take
- Update Nagios Core to a patched version to mitigate the vulnerability.
- Monitor and restrict access to the affected systems to prevent unauthorized exploitation.
Long-Term Security Practices
- Regularly update and patch software to address known vulnerabilities.
- Implement network segmentation and access controls to limit the attack surface.
Patching and Updates
- Apply security patches provided by Nagios Core promptly to prevent exploitation of the vulnerability.