CVE-2020-10693 : Security Advisory and Response
Learn about CVE-2020-10693, a vulnerability in Hibernate Validator version 6.1.2.Final that allows attackers to bypass input sanitation controls. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
A flaw in Hibernate Validator version 6.1.2.Final allows attackers to bypass input sanitation controls, potentially leading to security vulnerabilities.
Understanding CVE-2020-10693
This CVE identifies a vulnerability in Hibernate Validator version 6.1.2.Final that could be exploited by attackers to circumvent input sanitation controls.
What is CVE-2020-10693?
This CVE pertains to a bug in the message interpolation processor of Hibernate Validator version 6.1.2.Final that enables the evaluation of invalid EL expressions as if they were valid. This flaw can be abused by malicious actors to evade input sanitation measures implemented by developers when processing user-controlled data within error messages.
The Impact of CVE-2020-10693
The impact of this vulnerability is rated as medium severity with a CVSS base score of 5.3. The confidentiality impact is none, integrity impact is low, and availability impact is none. The attack complexity is low, and the attack vector is through the network.
Technical Details of CVE-2020-10693
This section delves into the technical aspects of the CVE.
Vulnerability Description
The bug in the message interpolation processor of Hibernate Validator version 6.1.2.Final allows the evaluation of invalid EL expressions, enabling attackers to bypass input sanitation controls.
Affected Systems and Versions
- Product: Hibernate Validator
- Vendor: Hibernate
- Version: 6.1.2.Final
Exploitation Mechanism
Attackers can exploit this vulnerability by crafting and injecting malicious input that contains invalid EL expressions, tricking the system into processing them as valid.
Mitigation and Prevention
To address CVE-2020-10693, follow these mitigation strategies:
Immediate Steps to Take
- Upgrade to a patched version of Hibernate Validator that addresses the vulnerability.
- Implement input validation mechanisms to sanitize user-controlled data effectively.
Long-Term Security Practices
- Regularly update software components to ensure the latest security patches are applied.
- Conduct security audits and code reviews to identify and remediate potential vulnerabilities.
Patching and Updates
- Stay informed about security advisories and updates related to Hibernate Validator to promptly apply patches that mitigate known vulnerabilities.