CVE Vulnerability

CVE-2021-23842

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.

3.6 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 4.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

Scope

7.1 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://psirt.bosch.com/security-advisories/BOSCH-SA-940448-BT.html Mitigation Vendor Advisory
Configurations

Configuration 1

cpe:2.3:a:bosch:access_management_system:3.0:*:*:*:*:*:*:*
cpe:2.3:a:bosch:access_professional_edition:*:*:*:*:*:*:*:*
cpe:2.3:a:bosch:building_integration_system:*:*:*:*:*:*:*:*
Information

Published : 2022-01-19 09:15

Updated : 2022-01-28 05:58

NVD link : CVE-2021-23842

Mitre link : CVE-2021-23842

Products Affected
No products.
CWE
CWE-798