CVE-2018-19276

OpenMRS before 2.24.0 is affected by an Insecure Object Deserialization vulnerability that allows an unauthenticated user to execute arbitrary commands on the targeted system via crafted XML data in a request body.

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

• http://packetstormsecurity.com/files/151553/OpenMRS-Platform-Insecure-Object-Deserialization.html
• http://packetstormsecurity.com/files/155691/OpenMRS-Java-Deserialization-Remote-Code-Execution.html
• https://know.bishopfox.com/advisories/news/2019/02/openmrs-insecure-object-deserialization
• https://talk.openmrs.org/t/critical-security-advisory-cve-2018-19276-2019-02-04/21607
• https://www.exploit-db.com/exploits/46327/
• http://packetstormsecurity.com/files/151553/OpenMRS-Platform-Insecure-Object-Deserialization.html
• http://packetstormsecurity.com/files/155691/OpenMRS-Java-Deserialization-Remote-Code-Execution.html
• https://know.bishopfox.com/advisories/news/2019/02/openmrs-insecure-object-deserialization
• https://talk.openmrs.org/t/critical-security-advisory-cve-2018-19276-2019-02-04/21607
• https://www.exploit-db.com/exploits/46327/