ABB 2.4 Display 55/2.4 Display 63/RoomTouch 4/BCU KNX KNX Bus-System access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.2$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in ABB 2.4 Display 55, 2.4 Display 63, RoomTouch 4 and BCU KNX. This impacts an unknown function of the component KNX Bus-System. This manipulation causes access control. The identification of this vulnerability is CVE-2024-4008. The attack needs to be done within the local network. There is no exploit available.

Detailsinfo

A vulnerability was found in ABB 2.4 Display 55, 2.4 Display 63, RoomTouch 4 and BCU KNX (affected version not known). It has been declared as critical. Affected by this vulnerability is some unknown functionality of the component KNX Bus-System. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

FDSK Leak in ABB, Busch-Jaeger, FTS Display (version 1.00) and BCU (version 1.3.0.33) allows attacker to take control via access to local KNX Bus-System

It is possible to read the advisory at search.abb.com. This vulnerability is known as CVE-2024-4008 since 04/19/2024. The exploitation appears to be easy. The attack can only be initiated within the local network. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/17/2025). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

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-2024-32574). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

License

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: 8.2
VulDB Meta Temp Score: 8.2

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CNA Base Score: 9.6
CNA Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/19/2024 🔍
06/05/2024 +47 days 🔍
06/05/2024 +0 days 🔍
09/17/2025 +469 days 🔍

Sourcesinfo

Advisory: search.abb.com
Status: Confirmed

CVE: CVE-2024-4008 (🔍)
GCVE (CVE): GCVE-0-2024-4008
GCVE (VulDB): GCVE-100-267199
EUVD: 🔍

Entryinfo

Created: 06/05/2024 19:29
Updated: 09/17/2025 09:02
Changes: 06/05/2024 19:29 (60), 06/06/2024 16:16 (1), 06/18/2024 19:06 (11), 09/17/2025 08:27 (18), 09/17/2025 09:02 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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