ABB 2.4 Display 55/2.4 Display 63/RoomTouch 4/BCU KNX KNX Bus-System authentication replay

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.4$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in ABB 2.4 Display 55, 2.4 Display 63, RoomTouch 4 and BCU KNX. Affected is an unknown function of the component KNX Bus-System. Such manipulation leads to authentication replay. This vulnerability is referenced as CVE-2024-4009. The attack can only be performed from a local environment. No exploit is available.

Detailsinfo

A vulnerability was found in ABB 2.4 Display 55, 2.4 Display 63, RoomTouch 4 and BCU KNX (the affected version unknown). It has been rated as critical. Affected by this issue is an unknown part of the component KNX Bus-System. The manipulation with an unknown input leads to a authentication replay vulnerability. Using CWE to declare the problem leads to CWE-294. A capture-replay flaw exists when the design of the product makes it possible for a malicious user to sniff network traffic and bypass authentication by replaying it to the server in question to the same effect as the original message (or with minor changes). Impacted is confidentiality, integrity, and availability. CVE summarizes:

Replay Attack in ABB, Busch-Jaeger, FTS Display (version 1.00) and BCU (version 1.3.0.33) allows attacker to capture/replay KNX telegram to local KNX Bus-System

The advisory is shared for download at search.abb.com. This vulnerability is handled as CVE-2024-4009 since 04/19/2024. The exploitation is known to be easy. The attack needs to be approached locally. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1040.

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

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Productinfo

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 9.2
CNA Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Authentication replay
CWE: CWE-294 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/19/2024 🔍
06/05/2024 +47 days 🔍
06/05/2024 +0 days 🔍
06/18/2024 +13 days 🔍

Sourcesinfo

Advisory: search.abb.com
Status: Confirmed

CVE: CVE-2024-4009 (🔍)
GCVE (CVE): GCVE-0-2024-4009
GCVE (VulDB): GCVE-100-267200

Entryinfo

Created: 06/05/2024 19:30
Updated: 06/18/2024 20:22
Changes: 06/05/2024 19:30 (60), 06/06/2024 05:59 (1), 06/06/2024 16:16 (1), 06/18/2024 20:22 (11)
Complete: 🔍
Cache ID: 216::103

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