KNX Association ETS5 up to 5.7.6 on Windows hard-coded credentials

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.0$0-$5k0.00

Summaryinfo

A vulnerability was found in KNX Association ETS5 up to 5.7.6 on Windows. It has been classified as problematic. This issue affects some unknown processing. This manipulation causes hard-coded credentials. This vulnerability is tracked as CVE-2021-36799. The attack is restricted to local execution. No exploit exists. Further encryption should be added.

Detailsinfo

A vulnerability has been found in KNX Association ETS5 up to 5.7.6 on Windows and classified as problematic. Affected by this vulnerability is an unknown code block. The manipulation with an unknown input leads to a hard-coded credentials vulnerability. The CWE definition for the vulnerability is CWE-798. The product contains hard-coded credentials, such as a password or cryptographic key, which it uses for its own inbound authentication, outbound communication to external components, or encryption of internal data. As an impact it is known to affect confidentiality.

The weakness was disclosed 07/19/2021 by Robert Gützkow. The advisory is shared at github.com. This vulnerability is known as CVE-2021-36799. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1110.001 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 23 days. During that time the estimated underground price was around $0-$5k.

It is possible to mitigate the problem by adding Project Store Directory as an encryption mechanism.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.1
VulDB Meta Temp Score: 6.0

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Hard-coded credentials
CWE: CWE-798 / CWE-259 / CWE-255
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

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: Encryption
Status: 🔍

0-Day Time: 🔍

Encryption: Project Store Directory

Timelineinfo

06/26/2021 🔍
07/19/2021 +23 days 🔍
07/19/2021 +0 days 🔍
07/19/2021 +0 days 🔍
08/04/2024 +1112 days 🔍

Sourcesinfo

Advisory: github.com
Researcher: Robert Gützkow
Status: Not defined

CVE: CVE-2021-36799 (🔍)
GCVE (CVE): GCVE-0-2021-36799
GCVE (VulDB): GCVE-100-178897

Entryinfo

Created: 07/19/2021 22:11
Updated: 08/04/2024 03:35
Changes: 07/19/2021 22:11 (34), 07/22/2021 10:53 (2), 07/23/2021 18:35 (1), 07/23/2021 18:36 (8), 08/04/2024 03:35 (36)
Complete: 🔍
Committer: error-correction
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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