Tomofun Furbo 360/Furbo Mini Password /etc/shadow weak hash

CVSS Meta Temp Score
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CTI Interest Score
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2.5$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Tomofun Furbo 360 and Furbo Mini. This affects an unknown function of the file /etc/shadow of the component Password Handler. The manipulation leads to weak hash. This vulnerability is documented as CVE-2025-11650. It is possible to launch the attack on the physical device. Additionally, an exploit exists. 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.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Tomofun Furbo 360 and Furbo Mini (Firmware Software) (version now known). This issue affects some unknown processing of the file /etc/shadow of the component Password Handler. The manipulation with an unknown input leads to a weak hash vulnerability. Using CWE to declare the problem leads to CWE-328. The product uses an algorithm that produces a digest (output value) that does not meet security expectations for a hash function that allows an adversary to reasonably determine the original input (preimage attack), find another input that can produce the same hash (2nd preimage attack), or find multiple inputs that evaluate to the same hash (birthday attack). Impacted is confidentiality.

The bug was discovered 05/15/2025. The weakness was released by Calvin Star, Julian B (skelet4r and dead1nfluence) with Software Secured. The advisory is shared at github.com. The Furbo Mini device stores the root user password in /etc/shadow using DES-based hashing. DES (Data Encryption Standard) is a deprecated encryption method known to be cryptographically weak due to its Small key size (56-bit), Susceptibility to brute-force attacks and Vulnerability to modern cryptanalysis. Because of this weak encryption, an attacker with access to the device's filesystem (e.g., via UART or firmware extraction) can easily brute-force the root password hash and obtain cleartext credentials using commonly available tools like Hashcat. The identification of this vulnerability is CVE-2025-11650. The exploitation is known to be difficult. An attack has to be approached locally. Technical details as well as a public exploit are known. MITRE ATT&CK project uses the attack technique T1600.001 for this issue.

A public exploit has been developed by Syndrome.Imposter. The exploit is available at github.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 149 days. During that time the estimated underground price was around . The vendor was contacted early about this disclosure but did not respond in any way. The firmware versions determined to be affected are Furbo 360 up to FB0035_FW_036 and Furbo Mini up to MC0020_FW_074. 1. Extract the contents of /etc/shadow from the device. 2. Save the root password hash to a file named hash.txt. 3. Run the following Hashcat command: hashcat -m 1500 -w 3 -a 3 hash.txt '?a?a?a?a?a?a?a?a'

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-33915). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 2.5
VulDB Meta Temp Score: 2.5

VulDB Base Score: 1.8
VulDB Temp Score: 1.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 4.0
NVD Vector: 🔒

CNA Base Score: 1.8
CNA Vector: 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Weak hash
CWE: CWE-328 / CWE-327 / CWE-310
CAPEC: 🔒
ATT&CK: 🔒

Physical: Yes
Local: Yes
Remote: No

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Author: Syndrome.Imposter
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

05/15/2025 Vulnerability found
06/21/2025 +37 days Vendor informed
07/03/2025 +11 days Vendor acknowledged
10/11/2025 +99 days Advisory disclosed
10/11/2025 +0 days VulDB entry created
10/28/2025 +17 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Researcher: Calvin Star, Julian B (skelet4r, dead1nfluence)
Organization: Software Secured
Status: Not defined

CVE: CVE-2025-11650 (🔒)
GCVE (CVE): GCVE-0-2025-11650
GCVE (VulDB): GCVE-100-328061
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 10/11/2025 20:39
Updated: 10/28/2025 05:55
Changes: 10/11/2025 20:39 (56), 10/13/2025 02:20 (1), 10/13/2025 02:27 (29), 10/20/2025 06:38 (15), 10/28/2025 05:55 (11)
Complete: 🔍
Submitter: jTag Labs
Committer: jTag Labs
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #662771: Tomofun Furbo 360, Furbo Mini Furbo 360 (≤ FB0035_FW_036), Furbo Mini (≤ MC0020_FW_074) Insecure Encryption Algorithm (by jTag Labs)

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