A crafted request bypasses S2S TCP Token authentication writing arbitrary events to an index in Splunk Enterprise Indexer 8.1 versions before 8.1.5 and 8.2 versions before 8.2.1. The vulnerability impacts Indexers configured to use TCPTokens. It does not impact Universal Forwarders.
Weakness
The product requires authentication, but the product has an alternate path or channel that does not require authentication.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Splunk | Splunk | 8.1.0 (including) | 8.1.5 (excluding) |
| Splunk | Splunk | 8.2.0 (including) | 8.2.0 (including) |