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Advisories

Wazuh before 5.0.0-beta3 Cluster Attribution Spoofing via Inventory Sync

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severity
medium
date
Affecting

  • wazuh >= 0, < 5.0.0-beta3

CWE
  • CWE-345 Insufficient Verification of Data Authenticity
CVSS
7.0
CVSS V4 Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N
Credit
nasaa0x
Description
Wazuh 5.0.0-beta1 (fixed in 5.0.0-beta3) does not validate or override the cluster_name and cluster_node fields in inventory-sync Start FlatBuffer messages, while validating only the agentid against the authenticated agent identity. This allows a low-privileged enrolled agent to spoof cluster attribution in indexed inventory and vulnerability documents by forging wazuh.cluster.name values and influencing the document _id prefix, potentially tampering with inventory records or, in shared-indexer multi-cluster deployments, poisoning another cluster's records when numeric agent IDs collide.

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