CVE-2022-33318

Deserialization of Untrusted Data vulnerability in Mitsubishi Electric GENESIS64 versions 10.97 to 10.97.1, Mitsubishi Electric Iconics Digital Solutions GENESIS64 versions 10.97 to 10.97.1, Mitsubishi Electric ICONICS Suite versions 10.97 to 10.97.1, Mitsubishi Electric Iconics Digital Solutions ICONICS Suite versions 10.97 to 10.97.1, Mitsubishi Electric GENESIS32 versions 9.7 and prior, Mitsubishi Electric Iconics Digital Solutions GENESIS32 versions 9.7 and prior, and Mitsubishi Electric MC Works64 versions 4.04E and prior allows a remote unauthenticated attacker to execute an arbitrary malicious code by sending specially crafted packets to the GENESIS64, ICONICS Suite, GENESIS32, or MC Works64 server.

Weakness

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

Affected Software

Potential Mitigations

• Make fields transient to protect them from deserialization.
• An attempt to serialize and then deserialize a class containing transient fields will result in NULLs where the transient data should be. This is an excellent way to prevent time, environment-based, or sensitive variables from being carried over and used improperly.

Related Attack Patterns

• https://cwe.mitre.org/data/definitions/586.html

References

• https://jvn.jp/vu/JVNVU96480474/index.html
• https://www.cisa.gov/news-events/ics-advisories/icsa-22-202-04
• https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2022-008_en.pdf
• https://jvn.jp/vu/JVNVU96480474/index.html
• https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2022-008_en.pdf