CVE-2017-3201 Explained : Impact and Mitigation
Learn about CVE-2017-3201 affecting Flamingo amf-serializer by Exadel, version 2.2.0. Understand the impact, technical details, and mitigation steps for this insecure deserialization vulnerability.
Flamingo amf-serializer by Exadel, version 2.2.0, Action Message Format (AMF3) Java implementation is vulnerable to insecure deserialization.
Understanding CVE-2017-3201
The AMF3 deserializers in Flamingo amf-serializer by Exadel, version 2.2.0, have a vulnerability that could allow remote attackers to execute arbitrary code.
What is CVE-2017-3201?
The vulnerability arises from the deviation in implementing class instances in Java through java.io.Externalizable instead of flash.utils.IExternalizable, potentially enabling attackers to send malicious serialized Java objects.
The Impact of CVE-2017-3201
This vulnerability could be exploited by attackers with the ability to spoof or control an RMI server connection, leading to the execution of arbitrary code during deserialization.
Technical Details of CVE-2017-3201
Flamingo amf-serializer by Exadel, version 2.2.0, is susceptible to insecure deserialization.
Vulnerability Description
The Java implementation of AMF3 deserializers in Flamingo amf-serializer by Exadel, version 2.2.0, does not follow the recommended AMF3 specification, potentially allowing for the execution of arbitrary code.
Affected Systems and Versions
- Product: Flamingo amf-serializer
- Vendor: Exadel
- Version: 2.2.0
Exploitation Mechanism
- Attackers with the capability to manipulate an RMI server connection can exploit this vulnerability by sending manipulated serialized Java objects.
Mitigation and Prevention
Steps to address and prevent the CVE-2017-3201 vulnerability.
Immediate Steps to Take
- Implement network segmentation to limit access to RMI servers.
- Regularly monitor and analyze network traffic for any suspicious activities.
- Apply strict input validation to prevent malicious data injection.
Long-Term Security Practices
- Keep software and libraries updated to patch known vulnerabilities.
- Conduct regular security audits and penetration testing to identify and address potential weaknesses.
Patching and Updates
- Apply patches and updates provided by Exadel for Flamingo amf-serializer to address the insecure deserialization vulnerability.