Nuki Bridge up to 1.8.0/1.9.1 JTAG missing authentication

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Nuki Bridge up to 1.8.0/1.9.1. This impacts an unknown function of the component JTAG. The manipulation leads to Local Privilege Escalation. This vulnerability is traded as CVE-2022-32503. It is possible to launch the attack on the physical device. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Nuki Bridge up to 1.8.0/1.9.1. It has been rated as critical. This issue affects an unknown functionality of the component JTAG. The manipulation with an unknown input leads to a local privilege escalation vulnerability. Using CWE to declare the problem leads to CWE-306. The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered on certain Nuki Home Solutions devices. An attacker with physical access to this JTAG port may be able to connect to the device and bypass both hardware and software security protections. This affects Nuki Keypad before 1.9.2 and Nuki Fob before 1.8.1.

The advisory is shared at research.nccgroup.com. The identification of this vulnerability is CVE-2022-32503 since 06/06/2022. The exploitation is known to be easy. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

Upgrading to version 1.8.1 or 1.9.2 eliminates this vulnerability.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.2
VulDB Meta Temp Score: 7.0

VulDB Base Score: 6.8
VulDB Temp Score: 6.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.6
CNA Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Missing authentication
CWE: CWE-306 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Bridge 1.8.1/1.9.2

Timelineinfo

06/06/2022 🔍
05/10/2024 +704 days 🔍
05/10/2024 +0 days 🔍
10/30/2024 +173 days 🔍

Sourcesinfo

Advisory: research.nccgroup.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2022-32503 (🔍)
GCVE (CVE): GCVE-0-2022-32503
GCVE (VulDB): GCVE-100-263789

Entryinfo

Created: 05/10/2024 07:12
Updated: 10/30/2024 02:30
Changes: 05/10/2024 07:12 (53), 10/30/2024 02:30 (14)
Complete: 🔍
Cache ID: 216::103

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