CVE-2024-2502 Failure to update the tamper reset cause register when a tamper event occurs
Attackers can bypass tamper detection mechanisms on specific Silicon Labs devices by exploiting a failure to update the tamper reset cause register.
- 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-2024-2502?
CVE-2024-2502 is a low-severity vulnerability in silabs.com SE Firmware, published on 29 Aug 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An application can be configured to block boot attempts after consecutive tamper resets are detected, which may not occur as expected.
This is possible because the TAMPERRSTCAUSE register may not be properly updated when a level 4 tamper event (a tamper reset) occurs. This impacts Series 2 HSE-SVH devices, including xG23B, xG24B, xG25B, and xG28B, but does not impact xG21B. To mitigate this issue, upgrade to SE Firmware version 2.2.6 or later.
Weakness: CWE-754
Which versions are affected by CVE-2024-2502?
How do I fix CVE-2024-2502?
No fix has been published for CVE-2024-2502 yet. Limit exposure of the affected software until one is available.
Is CVE-2024-2502 being exploited?
There is no known exploitation of CVE-2024-2502 in the wild and no public exploit code.
Sources
Also known as GHSA-wcgc-xf7f-fwm5.