CVE-2024-53832 Information disclosure in CPCI85 Central Processing/Communication
An attacker with physical access can observe SPI bus traffic to extract secure element passwords and decrypt firmware updates.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-53832?
CVE-2024-53832 is a medium-severity vulnerability in Siemens CPCI85 Central Processing/Communication, published on 10 Dec 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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.
Weakness: CWE-522
Which versions are affected by CVE-2024-53832?
How do I fix CVE-2024-53832?
No fix has been published for CVE-2024-53832 yet. Limit exposure of the affected software until one is available.
Is CVE-2024-53832 being exploited?
There is no known exploitation of CVE-2024-53832 in the wild and no public exploit code.
Sources
Also known as GHSA-pg55-3wrh-jwh5.