Deserialization of Untrusted Data vulnerability in Apache Lucene.Net.Replicator.
This issue affects Apache Lucene.NETs Replicator library: from 4.8.0-beta00005 through 4.8.0-beta00016.
An attacker that can intercept traffic between a replication client and server, or control the target replication node URL, can provide a specially-crafted JSON response that is deserialized as an attacker-provided exception type. This can result in remote code execution or other potential unauthorized access.
Users are recommended to upgrade to version 4.8.0-beta00017, which fixes the issue.
Weakness
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Lucene.net | Apache | 4.8.0-beta00005 (including) | 4.8.0-beta00005 (including) |
| Lucene.net | Apache | 4.8.0-beta00006 (including) | 4.8.0-beta00006 (including) |
| Lucene.net | Apache | 4.8.0-beta00007 (including) | 4.8.0-beta00007 (including) |
| Lucene.net | Apache | 4.8.0-beta00008 (including) | 4.8.0-beta00008 (including) |
| Lucene.net | Apache | 4.8.0-beta00009 (including) | 4.8.0-beta00009 (including) |
| Lucene.net | Apache | 4.8.0-beta00010 (including) | 4.8.0-beta00010 (including) |
| Lucene.net | Apache | 4.8.0-beta00011 (including) | 4.8.0-beta00011 (including) |
| Lucene.net | Apache | 4.8.0-beta00012 (including) | 4.8.0-beta00012 (including) |
| Lucene.net | Apache | 4.8.0-beta00013 (including) | 4.8.0-beta00013 (including) |
| Lucene.net | Apache | 4.8.0-beta00014 (including) | 4.8.0-beta00014 (including) |
| Lucene.net | Apache | 4.8.0-beta00015 (including) | 4.8.0-beta00015 (including) |
| Lucene.net | Apache | 4.8.0-beta00016 (including) | 4.8.0-beta00016 (including) |
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.