Xiaozhi-esp32-server-java through 6.1.0 contains an authentication bypass vulnerability that allows unauthenticated attackers to obtain valid device WebSocket tokens by requesting /api/device/ota with any MAC address. Attackers can open a victim device's WebSocket channel to read private role system prompts, write conversation history, consume LLM/STT/TTS credentials, and overwrite device metadata.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
Low
Partial disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 6
https://github.com/joey-zhou/xiaozhi-esp32-server-java
disclosure@vulncheck.com
https://github.com/joey-zhou/xiaozhi-esp32-server-java/blob/v6.1.0/xiaozhi-comm…
disclosure@vulncheck.com
https://github.com/joey-zhou/xiaozhi-esp32-server-java/blob/v6.1.0/xiaozhi-serv…
disclosure@vulncheck.com
https://github.com/joey-zhou/xiaozhi-esp32-server-java/blob/v6.1.0/xiaozhi-serv…
disclosure@vulncheck.com
https://hackmd.io/@hieuPenguinnn/xiaozhi-esp32-server-java-ota-device-token-iss…
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/xiaozhi-esp32-server-java-through-6.1.0-au…
disclosure@vulncheck.com