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CVE-2021-23842

nvd nist
Published: Jan 19, 2022Modified: Jun 17, 2026

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7.1
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Exploitability: 1.8 / Impact: 5.2
Source: NVD

Description

Communication to the AMC2 uses a state-of-the-art cryptographic algorithm for symmetric encryption called Blowfish. An attacker could retrieve the key from the firmware to decrypt network traffic between the AMC2 and the host system. Thus, an attacker can exploit this vulnerability to decrypt and modify network traffic, decrypt and further investigate the device\'s firmware file, and change the device configuration. The attacker needs to have access to the local network, typically even the same subnet.

Affected (4)

4 products
Amc2 Firmware
Access Management System
Access Professional Edition
Building Integration System
Configuration A
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
All versions
Running on/withPlatform Versions
Bosch
Amc2
All versions
Configuration B
1 vulnerable
Vulnerable SoftwareAffected Versions
Version 3.0
Configuration C
1 vulnerable
Vulnerable SoftwareAffected Versions
Up to 3.8.0
Configuration D
1 vulnerable
Vulnerable SoftwareAffected Versions
Before 4.9.1

References (2)

Source: psirt@bosch.com
MitigationVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
MitigationVendor Advisory

Timeline

No history available yet.