CVE-2020-35491 Explained : Impact and Mitigation
Learn about CVE-2020-35491, 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.commons.dbcp2.datasources.SharedPoolDataSource.
Understanding CVE-2020-35491
This CVE involves a vulnerability in FasterXML jackson-databind that affects versions prior to 2.9.10.8.
What is CVE-2020-35491?
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.commons.dbcp2.datasources.SharedPoolDataSource.
The Impact of CVE-2020-35491
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-2020-35491
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 within FasterXML jackson-databind, particularly concerning org.apache.commons.dbcp2.datasources.SharedPoolDataSource.
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 sensitive information.
Mitigation and Prevention
Protect your systems from CVE-2020-35491 with the following steps:
Immediate Steps to Take
- Update FasterXML jackson-databind to version 2.9.10.8 or later.
- Monitor for any unusual activities on the network that could indicate exploitation of the vulnerability.
Long-Term Security Practices
- Regularly update software and libraries to the latest versions to patch known vulnerabilities.
- Implement network segmentation and access controls to limit the impact of potential breaches.
Patching and Updates
- Stay informed about security updates and patches released by FasterXML and other relevant vendors to address CVE-2020-35491.