CVE-2022-31115

Summary

opensearch-ruby is a community-driven, open source fork of elasticsearch-ruby. In versions prior to 2.0.1 the ruby YAML.load function was used instead of YAML.safe_load. As a result opensearch-ruby 2.0.0 and prior can lead to unsafe deserialization using YAML.load if the response is of type YAML. An attacker must be in control of an opensearch server and convince the victim to connect to it in order to exploit this vulnerability. The problem has been patched in opensearch-ruby gem version 2.0.1. Users are advised to upgrade. There are no known workarounds for this issue.

Affected Software

Weaknesses

• CWE-502: CWE-502: Deserialization of Untrusted Data

ADP Enrichment

CVE Program Container

Additional References

• https://github.com/opensearch-project/opensearch-ruby/security/advisories/GHSA-977c-63xq-cgw3
• https://github.com/opensearch-project/opensearch-ruby/pull/77
• https://staaldraad.github.io/post/2021-01-09-universal-rce-ruby-yaml-load-updated/

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: no
  • Technical Impact: total

References

• https://github.com/opensearch-project/opensearch-ruby/security/advisories/GHSA-977c-63xq-cgw3
• https://github.com/opensearch-project/opensearch-ruby/pull/77
• https://staaldraad.github.io/post/2021-01-09-universal-rce-ruby-yaml-load-updated/

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