CVE-2020-23620

The Java Remote Management Interface of all versions of Orlansoft ERP was discovered to contain a vulnerability due to insecure deserialization of user-supplied content, which can allow attackers to execute arbitrary code via a crafted serialized Java object.

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://gist.github.com/fuzzKitty/95106430aa09760ebdcfa6304777f31f
• https://github.com/joaomatosf/jexboss
• https://orlansoft.com/
• https://gist.github.com/fuzzKitty/95106430aa09760ebdcfa6304777f31f
• https://github.com/joaomatosf/jexboss
• https://orlansoft.com/