CVE-2020-28923 : Security Advisory and Response
Discover the impact of CVE-2020-28923 in Play Framework 2.8.0 through 2.8.4, leading to Data Amplification. Learn about affected systems, exploitation, and mitigation steps.
An issue was discovered in Play Framework 2.8.0 through 2.8.4 that can lead to Data Amplification when carefully crafted JSON payloads are sent as a form field.
Understanding CVE-2020-28923
What is CVE-2020-28923?
This CVE identifies a vulnerability in Play Framework versions 2.8.0 through 2.8.4 that can result in Data Amplification.
The Impact of CVE-2020-28923
The vulnerability affects users migrating from a Play version prior to 2.8.0 who used the Play Java API to serialize classes with protected or private fields to JSON.
Technical Details of CVE-2020-28923
Vulnerability Description
Crafted JSON payloads sent as a form field can lead to Data Amplification in Play Framework 2.8.0 through 2.8.4.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions affected: 2.8.0 through 2.8.4
Exploitation Mechanism
The issue arises when users migrating from older Play versions that utilized the Play Java API to serialize classes with protected or private fields to JSON.
Mitigation and Prevention
Immediate Steps to Take
- Upgrade to a non-vulnerable version of Play Framework.
- Implement input validation to sanitize JSON payloads.
Long-Term Security Practices
- Regularly update Play Framework to the latest secure versions.
- Conduct security audits to identify and address vulnerabilities.
Patching and Updates
Apply patches provided by Play Framework to address the Data Amplification vulnerability.