CVE-2021-23842

Summary

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 Software

VendorProductVersion RangeStatus
BoschAMSunspecified < 4.0affected
BoschAPEunspecified <= 3.8.xaffected
BoschBISunspecified < 4.9.1affected
BoschAMC2allaffected

Weaknesses

  • CWE-321: CWE-321 Use of Hard-coded Cryptographic Key

ADP Enrichment

CVE Program Container

Additional References

References