CVE-2024-40892

HIGH

Firewalla Box Software <1.979 - Auth Bypass

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2024-40892. PoCs published by xen0bit.

AI-analyzed exploit summary This repository contains a functional PoC for CVE-2024-40892 and CVE-2024-40893, targeting Firewalla devices via Bluetooth Low-Energy. It leaks license UUID checksums, provisions root SSH credentials, and exploits command injection vulnerabilities.

Description

A weak credential vulnerability exists in Firewalla Box Software versions before 1.979. This vulnerability allows a physically close attacker to use the license UUID for authentication and provision SSH credentials over the Bluetooth Low-Energy (BTLE) interface. Once an attacker gains access to the LAN, they could log into the SSH interface using the provisioned credentials. The license UUID can be acquired through plain-text Bluetooth sniffing, reading the QR code on the bottom of the device, or brute-forcing the UUID (though this is less likely).

Exploits (1)

nomisec WORKING POC 5 stars
by xen0bit · poc
https://github.com/xen0bit/fwbt

This repository contains a functional PoC for CVE-2024-40892 and CVE-2024-40893, targeting Firewalla devices via Bluetooth Low-Energy. It leaks license UUID checksums, provisions root SSH credentials, and exploits command injection vulnerabilities.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Firewalla (version not specified)
No auth needed
Prerequisites: Physical proximity to target device for BLE interaction · License UUID for full exploitation
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (2)

Core 2
Core References
Third Party Advisory third-party-advisory
https://vulncheck.com/advisories/firewalla-bt-weak-credentials
Various Sources technical-description exploit
https://www.labs.greynoise.io/grimoire/2024-08-20-bluuid-firewalla/

Scores

CVSS v3 7.1
EPSS 0.0092
EPSS Percentile 55.5%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-1391
Status published
Products (1)
Firewalla/Box Software < 1.979
Published Aug 12, 2024
Tracked Since Feb 18, 2026