CVE-2025-11643

A security flaw has been discovered in Tomofun Furbo 360 and Furbo Mini. Affected by this vulnerability is an unknown functionality of the file /squashfs-root/furbo_img of the component MQTT Client Certificate. Performing manipulation results in hard-coded credentials. The attack may be initiated remotely. The attacks complexity is rated as high. The exploitation appears to be difficult. The firmware versions determined to be affected are Furbo 360 up to FB0035_FW_036 and Furbo Mini up to MC0020_FW_074. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness

The product contains a hard-coded password, which it uses for its own inbound authentication or for outbound communication to external components.

Extended Description

There are two main variations of a hard-coded password:

Potential Mitigations

• For inbound authentication: apply strong one-way hashes to your passwords and store those hashes in a configuration file or database with appropriate access control. That way, theft of the file/database still requires the attacker to try to crack the password. When receiving an incoming password during authentication, take the hash of the password and compare it to the hash that you have saved.
• Use randomly assigned salts for each separate hash that you generate. This increases the amount of computation that an attacker needs to conduct a brute-force attack, possibly limiting the effectiveness of the rainbow table method.
• For front-end to back-end connections: Three solutions are possible, although none are complete.

References

• https://vuldb.com/?ctiid.328054
• https://vuldb.com/?id.328054
• https://vuldb.com/?submit.661875