Advisory Details

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of ChargePoint Home Flex charging stations. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the wlanchnllst function. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of root.

01/28/24 – ZDI reported the vulnerability to the vendor.
02/05/24 – ZDI asked for confirmation of receipt.
02/06/24 – The vendor confirmed receipt of the report.
04/29/24 – ZDI asked for an update.
05/24/24 – ZDI asked for an update.
05/29/24 – The vendor states that the vulnerability has been addressed but would need to get verification from QA.
07/22/24 – ZDI asked for an update.
07/29/24 – The ZDI informed the vendor that since we never received a confirmation that the vulnerability was patched, we have no choice but to assume this issue hasn’t been remediated and that we intend to publish the report as a zero-day advisory on 8/01/24.

--Vendor Response 08/16/24: The vendor states this vulnerability was patched in April 2024.

• 2024-02-02 - Vulnerability reported to vendor
• 2024-08-01 - Coordinated public release of advisory
• 2024-08-21 - Advisory Updated