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    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.

    Published:Jan 19, 2022
    Last Modified:Nov 21, 2024
    EPS:Jan 19, 2022
    EPSS Score:0.00027
    CVSS Score:5.7

    Affected Products

    Vendor
    Bosch
    Product
    Access Management System
    Vendor
    Bosch
    Product
    Access Professional Edition
    Vendor
    Bosch
    Product
    Amc2
    Vendor
    Bosch
    Product
    Amc2 Firmware
    Vendor
    Bosch
    Product
    Building Integration System

    Exploits

    No exploit reference

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High