CVE-2018-12432: Cross-site Scripting in JavaMelody
Summary
CVE-2018-12432: Cross-site Scripting in JavaMelody. Affects net.bull.javamelody:javamelody-core versions < 1.61.0. Fixed in 1.61.0. How to fix ↓
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Background
JavaMelody is a monitoring tool for Java applications that provides real-time information about the performance and health of the application. It is commonly used to monitor web applications, servlets, EJBs, and other Java components. The vulnerability identified as CVE-2018-12432 is a cross-site scripting (XSS) vulnerability that exists in JavaMelody versions up to 1.60.0. This vulnerability allows an attacker to inject malicious scripts into the application, potentially leading to unauthorized access, data theft, or other malicious activities.
Vulnerability Detail
The vulnerability arises due to insufficient input sanitization in the 'counter' parameter of the 'clear_counter' action in the '/monitoring' URI. An attacker can exploit this vulnerability by injecting malicious scripts into the 'counter' parameter, which will be executed when the action is triggered. This can be done by tricking a user with sufficient privileges to click on a specially crafted link or by manipulating the application's request parameters. The impact of this vulnerability can range from defacement of the application to the theft of sensitive user information.
How To Fix
Minimum fixed version
1.61.0
This is the first release that contains the fix.
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Workaround
If upgrading to the latest version of JavaMelody is not immediately feasible, a temporary workaround can be implemented by manually sanitizing and validating the 'counter' parameter before using it in the application. This can be done by using a library or framework that provides input validation and sanitization functions, such as OWASP Java Encoder. By applying proper input sanitization, the risk of XSS attacks can be mitigated.
Conclusion
The CVE-2018-12432 vulnerability in JavaMelody exposes applications to cross-site scripting attacks. To mitigate this vulnerability, it is crucial to upgrade to JavaMelody version 1.61.0 or later. Alternatively, implementing proper input sanitization and validation for the 'counter' parameter can provide a temporary workaround. For further assistance or support in vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability allows an attacker to inject malicious scripts into the application, potentially leading to unauthorized access, data theft, or other malicious activities.
An attacker can exploit this vulnerability by injecting malicious scripts into the 'counter' parameter of the 'clear_counter' action in the '/monitoring' URI.
The recommended solution is to upgrade to JavaMelody version 1.61.0 or later, which includes a fix for the XSS vulnerability.
A temporary workaround is to manually sanitize and validate the 'counter' parameter before using it in the application.
There are no known public exploits for this vulnerability at the time of this report.
References
Related vulnerabilities
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