Secure Element Vulnerability Exposes Password and Update Files to Physical Attack
CVE-2024-53832

5.1MEDIUM

Key Information:

Vendor

Siemens
Status
Cpci85 Central Processing/communication
Vendor
CVE Published:
10 December 2024

What is CVE-2024-53832?

A vulnerability has been identified in CPCI85 Central Processing/Communication (All versions < V05.30). The affected devices contain a secure element which is connected via an unencrypted SPI bus. This could allow an attacker with physical access to the SPI bus to observe the password used for the secure element authentication, and then use the secure element as an oracle to decrypt all encrypted update files.

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Affected Version(s)

CPCI85 Central Processing/Communication 0

References

https://cert-portal.siemens.com/productcert/html/ssa-1283...

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Physical
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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