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CVE-2020-5245 : What You Need to Know

Learn about CVE-2020-5245, a Remote Code Execution (RCE) vulnerability in dropwizard-validation allowing arbitrary code execution. Find mitigation steps and affected versions here.

Dropwizard-Validation before 1.3.19, and 2.0.2 may allow arbitrary code execution on the host system by injecting Java Expression Language expressions.

Understanding CVE-2020-5245

This CVE involves a Remote Code Execution (RCE) vulnerability in dropwizard-validation.

What is CVE-2020-5245?

CVE-2020-5245 is a security vulnerability in dropwizard-validation that could permit arbitrary code execution on the host system.

The Impact of CVE-2020-5245

The vulnerability may allow an attacker to execute arbitrary code on the host system with the privileges of the Dropwizard service account.

Technical Details of CVE-2020-5245

This section provides more technical insights into the CVE.

Vulnerability Description

The issue arises from the improper handling of Java Expression Language expressions during self-validation in dropwizard-validation.

Affected Systems and Versions

        Product: dropwizard-validation
        Vendor: dropwizard
        Versions Affected:
              < 1.3.19

              = 2.0.0, < 2.0.2

Exploitation Mechanism

The vulnerability can be exploited by injecting malicious Java Expression Language expressions.

Mitigation and Prevention

Protect your systems from CVE-2020-5245 with the following measures:

Immediate Steps to Take

        Update dropwizard-validation to version 1.3.19 or 2.0.2, where the issue has been fixed.
        Monitor for any suspicious activities on the system.

Long-Term Security Practices

        Implement input validation mechanisms to prevent injection attacks.
        Regularly review and update security configurations.

Patching and Updates

        Stay informed about security advisories and promptly apply patches to vulnerable software.

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