CVE-2021-23842

Use of Hard-coded Cryptographic Key

State
Published
Severity
5.7 Medium
Published
Jan 19, 2022
Updated
Sep 16, 2024
Reserved
Jan 12, 2021

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.15.7 MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:Nbosch

Weaknesses

  • CWE-321 Use of Hard-coded Cryptographic Key

Affected Products

ProductVersions
AMSBosch
  • before 4.0Affected
APEBosch
  • 3.8.x and earlierAffected
BISBosch
  • before 4.9.1Affected
AMC2Bosch
  • allAffected

References

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