CVE-2022-1471

Summary

SnakeYaml's Constructor() class does not restrict types which can be instantiated during deserialization. Deserializing yaml content provided by an attacker can lead to remote code execution. We recommend using SnakeYaml's SafeConsturctor when parsing untrusted content to restrict deserialization. We recommend upgrading to version 2.0 and beyond.

Affected Software

Weaknesses

• CWE-20: CWE-20 Improper Input Validation

ADP Enrichment

CVE Program Container

Additional References

• https://github.com/google/security-research/security/advisories/GHSA-mjmj-j48q-9wg2
• https://bitbucket.org/snakeyaml/snakeyaml/issues/561/cve-2022-1471-vulnerability-in#comment-64581479
• https://github.com/mbechler/marshalsec
• https://www.github.com/mbechler/marshalsec/blob/master/marshalsec.pdf?raw=true
• https://groups.google.com/g/kubernetes-security-announce/c/mwrakFaEdnc
• https://security.netapp.com/advisory/ntap-20230818-0015/
• http://packetstormsecurity.com/files/175095/PyTorch-Model-Server-Registration-Deserialization-Remote-Code-Execution.html
• http://www.openwall.com/lists/oss-security/2023/11/19/1
• https://security.netapp.com/advisory/ntap-20240621-0006/

CISA ADP Vulnrichment

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

References

• https://github.com/google/security-research/security/advisories/GHSA-mjmj-j48q-9wg2
• https://bitbucket.org/snakeyaml/snakeyaml/issues/561/cve-2022-1471-vulnerability-in#comment-64581479
• https://github.com/mbechler/marshalsec
• https://www.github.com/mbechler/marshalsec/blob/master/marshalsec.pdf?raw=true
• https://groups.google.com/g/kubernetes-security-announce/c/mwrakFaEdnc
• https://security.netapp.com/advisory/ntap-20230818-0015/
• http://packetstormsecurity.com/files/175095/PyTorch-Model-Server-Registration-Deserialization-Remote-Code-Execution.html
• http://www.openwall.com/lists/oss-security/2023/11/19/1
• https://security.netapp.com/advisory/ntap-20240621-0006/
• https://infosecwriteups.com/%EF%B8%8F-inside-the-160-comment-fight-to-fix-snakeyamls-rce-default-1a20c5ca4d4c
• https://confluence.atlassian.com/security/cve-2022-1471-snakeyaml-library-rce-vulnerability-in-multiple-products-1296171009.html

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