High [CVE-2021-31559] crafted request bypasses S2S TCP Token authentication writing arbitrary events to an index in Splunk Enterprise Indexer 8.1…
This high-severity Splunk advisory covers CVE-2021-31559 affecting Splunk Enterprise, Universal Forwarder.
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Summary
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.
- 8.1.5
- 8.2.1
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- 8.1.5
- 8.2.1
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation
Upgrade to a fixed release: 8.1.5, 8.2.1. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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