CVE-2020-36186 Explained : Impact and Mitigation
Learn about CVE-2020-36186, a vulnerability in FasterXML jackson-databind 2.x before 2.9.10.8 that mishandles serialization gadgets and typing, potentially leading to security breaches and unauthorized access.
FasterXML jackson-databind 2.x before 2.9.10.8 mishandles the interaction between serialization gadgets and typing, related to org.apache.tomcat.dbcp.dbcp.datasources.PerUserPoolDataSource.
Understanding CVE-2020-36186
This CVE involves a vulnerability in FasterXML jackson-databind that affects versions prior to 2.9.10.8.
What is CVE-2020-36186?
The vulnerability in FasterXML jackson-databind 2.x before 2.9.10.8 is due to mishandling the interaction between serialization gadgets and typing, specifically related to org.apache.tomcat.dbcp.dbcp.datasources.PerUserPoolDataSource.
The Impact of CVE-2020-36186
The mishandling of serialization gadgets and typing in FasterXML jackson-databind can potentially lead to security breaches and unauthorized access to sensitive data.
Technical Details of CVE-2020-36186
This section provides more in-depth technical information about the CVE.
Vulnerability Description
The vulnerability arises from the incorrect handling of serialization gadgets and typing, particularly in the context of org.apache.tomcat.dbcp.dbcp.datasources.PerUserPoolDataSource.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions affected: All versions prior to 2.9.10.8
Exploitation Mechanism
Attackers can exploit this vulnerability by manipulating serialization gadgets and typing to gain unauthorized access to the affected systems.
Mitigation and Prevention
Protecting systems from CVE-2020-36186 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update FasterXML jackson-databind to version 2.9.10.8 or later to mitigate the vulnerability.
- Monitor for any suspicious activities on the network that could indicate exploitation attempts.
Long-Term Security Practices
- Implement secure coding practices to prevent similar vulnerabilities in the future.
- Regularly update and patch software to address known security issues.
Patching and Updates
- Apply patches and updates provided by FasterXML to ensure the security of the jackson-databind library.