CVE-2023-49566

In Apache Linkis <=1.5.0, due to the lack of effective filtering of parameters, an attacker configuring malicious

db2

parameters in the DataSource Manager Module will result in jndi injection. Therefore, the parameters in the DB2 URL should be blacklisted. 

This attack requires the attacker to obtain an authorized account from Linkis before it can be carried out.

Versions of Apache Linkis

<=1.5.0

will be affected. We recommend users upgrade the version of Linkis to version 1.6.0.

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://lists.apache.org/thread/t68yy52lmv7pxgrxnq6rw7rwvk9tb1xj
• http://www.openwall.com/lists/oss-security/2024/07/13/5
• https://lists.apache.org/thread/t68yy52lmv7pxgrxnq6rw7rwvk9tb1xj