CVE-2017-3203: Deserialization of Untrusted Data in Spring-flex
Summary
CVE-2017-3203: Deserialization of Untrusted Data in Spring-flex. Affects org.springframework.flex:spring-flex versions < 1.5.2.RELEASE. No fix is published. How to fix ↓
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Background
The Spring-flex package is a Java library that provides integration between Adobe Flex and the Spring Framework. It allows developers to build rich internet applications using Flex and leverage the features of the Spring Framework. The package includes implementations of AMF3 deserializers, which are responsible for converting serialized data into Java objects. However, the deserializers in versions prior to 1.5.2.RELEASE derive class instances from java.io.Externalizable instead of the recommended flash.utils.IExternalizable from the AMF3 specification.
Vulnerability Detail
The vulnerability arises from the use of java.io.Externalizable in the deserialization process. An attacker with the ability to control or spoof an RMI server connection can send serialized Java objects that execute arbitrary code when deserialized. This can lead to remote code execution and potentially compromise the security and integrity of the system. The vulnerability has a CVSS score of 8.1, indicating a high severity level.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no known workaround for this vulnerability. It is crucial to update to the fixed version of the package as soon as possible.
Conclusion
The CVE-2017-3203 vulnerability in the Spring-flex package allows remote code execution through deserialization of untrusted data. To mitigate this vulnerability, it is crucial to update to version 1.5.2.RELEASE or later. For further assistance and support in vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability allows remote attackers to execute arbitrary code on the affected system, potentially leading to a complete compromise of the system's security and integrity.
No, only versions prior to 1.5.2.RELEASE are affected. It is recommended to update to the fixed version to mitigate the vulnerability.
While there is no specific known exploit publicly available, the vulnerability can be exploited by an attacker with the ability to control or spoof an RMI server connection.
Yes, the vulnerability can be exploited remotely by sending maliciously crafted serialized Java objects to the targeted system.
Yes, the CVSS score for this vulnerability is 8.1, indicating a high severity level.
