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CVE-2021-36162GHSA-R577-4HQ7-73QH

Unprotected yaml deserialization cause RCE

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 2.7.13, 3.0.2
None on Exploit-DB, Metasploit or GitHub

Summary

Apache Dubbo supports various rules to support configuration override or traffic routing (called routing in Dubbo). These rules are loaded into the configuration center (eg: Zookeeper, Nacos, ...) 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 he will be able to poison the rule so when retrieved by the consumers, it will get RCE on all of them. This was fixed in Dubbo 2.7.13, 3.0.2

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Apache Software Foundation Apache Dubbo

    From Apache Dubbo 2.7.x · through 2.7.12; From Apache Dubbo 3.0.x · through 3.0.1

  • org.apache.dubbo:dubboMaven

    fixed in 2.7.13

  • org.apache.dubbo:dubboMaven

    From 3.0.0 · fixed in 3.0.2

References 1

lists.apache.org