Apache Dubbo Deserialization Vulnerability (CVE-2019-17564) Threat Alert

Apache Dubbo Deserialization Vulnerability (CVE-2019-17564) Threat Alert

February 25, 2020 | Mina Hao

Overview

Recently, researchers from the Chekmarx team discovered and released a deserialization vulnerability (CVE-2019-17564) existing in Apache Dubbo.

Apache Dubbo is a high-performance Java RPC framework. This vulnerability exists in Dubbo application which has the HTTP protocol enabled for communication. An attacker could exploit this vulnerability by submitting a POST request with a Java object, thereby completely compromising a Provider instance of Apache Dubbo.

The Dubbo HTTP instance attempts to deserialize data within the Java ObjectStream, which contains a malicious set of classes. Due to the lack of proper filtering and check, the deserialization could cause malicious code execution.

This vulnerability only affects users who enable the HTTP protocol rather than the default Dubbo protocol.

Reference link:

https://www.mail-archive.com/dev@dubbo.apache.org/msg06225.html

Affected Versions

  • 7.0<=Dubbo Version <=2.7.4
  • 6.0 <= Dubbo Version <= 2.6.7
  • Dubbo 2.5.x (no longer supported)

Unaffected Versions

  • Dubbo Version =2.7.5

Solution

Apache has released Dubbo 2.7.5 to fix the preceding vulnerability. Affected users are advised to upgrade as soon as possible.

To download Dubbo 2.7.5, click the following link:

https://github.com/apache/dubbo/releases/tag/dubbo-2.7.5

Statement

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