Remote Code Execution (RCE) Affecting org.apache.dubbo:dubbo-cluster Open this link in a new tab package, versions [3.0.0,3.0.2) [2.7.0,2.7.13)


0.0
high
  • Attack Complexity

    Low

  • Privileges Required

    High

  • Confidentiality

    High

  • Integrity

    High

  • Availability

    High

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  • snyk-id

    SNYK-JAVA-ORGAPACHEDUBBO-1582906

  • published

    7 Sep 2021

  • disclosed

    7 Sep 2021

  • credit

    Alvaro Munoz

How to fix?

Upgrade org.apache.dubbo:dubbo-cluster to version 3.0.2, 2.7.13 or higher.

Overview

org.apache.dubbo:dubbo-cluster is an Apache Dubbo is a high-performance, java based, open source RPC framework.

Affected versions of this package are vulnerable to Remote Code Execution (RCE). Apache Dubbo supports various rules to support configuration override or traffic routing. These rules are loaded into the configuration center and retrieved by the customers when making a request in order to find the right endpoint.

When parsing these YAML rules, Dubbo customers will use SnakeYAML library to load the rules which, by default, will enable calling arbitrary constructors. An attacker with access to the configuration center will be able to poison the rule so, when retrieved by the consumers, it will trigger remote code execution.