CVE-2020-9548 : Security Advisory and Response
Learn about CVE-2020-9548, a vulnerability in FasterXML jackson-databind 2.x before 2.9.10.4 that mishandles serialization gadgets and typing, potentially leading to remote code execution. Find mitigation steps and long-term security practices here.
FasterXML jackson-databind 2.x before 2.9.10.4 mishandles the interaction between serialization gadgets and typing, related to br.com.anteros.dbcp.AnterosDBCPConfig (aka anteros-core).
Understanding CVE-2020-9548
This CVE involves a vulnerability in FasterXML jackson-databind that affects the interaction between serialization gadgets and typing.
What is CVE-2020-9548?
CVE-2020-9548 is a security vulnerability in FasterXML jackson-databind 2.x before version 2.9.10.4 that mishandles the interaction between serialization gadgets and typing, specifically related to br.com.anteros.dbcp.AnterosDBCPConfig.
The Impact of CVE-2020-9548
The mishandling of serialization gadgets and typing in jackson-databind can potentially lead to security breaches, allowing attackers to execute arbitrary code.
Technical Details of CVE-2020-9548
This section provides more in-depth technical details about the CVE.
Vulnerability Description
The vulnerability in jackson-databind 2.x before 2.9.10.4 allows for improper handling of serialization gadgets and typing, creating a security risk.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions affected: All versions of jackson-databind 2.x before 2.9.10.4
Exploitation Mechanism
Attackers can exploit this vulnerability by crafting malicious input that triggers the mishandling of serialization gadgets and typing, potentially leading to remote code execution.
Mitigation and Prevention
Protecting systems from CVE-2020-9548 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update jackson-databind to version 2.9.10.4 or later to mitigate the vulnerability.
- Monitor for any signs of unauthorized access or unusual system behavior.
Long-Term Security Practices
- Regularly update software and libraries to the latest secure versions.
- Implement proper input validation and output encoding to prevent injection attacks.
- Conduct security assessments and penetration testing to identify and address vulnerabilities.
Patching and Updates
Ensure that all systems using jackson-databind are patched with the latest updates to address CVE-2020-9548.