Critical Vulnerability in libhibernate-validator-java: Bypass of Input Sanitation Controls
Summary
DEBIAN-CVE-2020-10693: A flaw was found in Hibernate Validator version 6.1.2.Final. Affects libhibernate-validator-java versions 5.3.6-1 – 5.3.6-3. No fix is published. How to fix ↓
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Background
libhibernate-validator-java is a Java library that provides validation capabilities for JavaBeans, allowing developers to enforce constraints on object properties. It is widely used in Java applications to ensure data integrity and user input validation. However, a flaw in version 6.1.2.Final has been identified, which can lead to security risks if not addressed promptly.
Vulnerability Detail
A flaw was found in Hibernate Validator version 6.1.2.Final. A bug in the message interpolation processor enables invalid EL expressions to be evaluated as if they were valid. This flaw allows attackers to bypass input sanitation (escaping, stripping) controls that developers may have put in place when handling user-controlled data in error messages. This vulnerability can lead to potential exploitation, allowing attackers to inject malicious content into error messages, which could be executed in the context of the application.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a temporary workaround, ensure that user-controlled data is properly sanitized before being passed to the message interpolation processor. This can be done by implementing additional validation checks in your application code to prevent invalid EL expressions from being processed.
Conclusion
The identified vulnerability in libhibernate-validator-java poses a significant risk to applications relying on this library for input validation. It is crucial to update to the patched version and implement additional security measures to safeguard against potential exploitation.
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FAQ
The vulnerability allows attackers to bypass input sanitation controls, potentially leading to the execution of malicious code within the application.
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Yes, a patched version of libhibernate-validator-java is available. Updating to the latest version will resolve the issue.
Implement additional input validation and sanitation measures in your application to mitigate the risk until you can update the package.
Detailed information can be found in the CVE-2020-10693 report and the Debian security advisories.
References
Related vulnerabilities
Recent vulnerabilities recorded for libhibernate-validator-java.
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