ZDI-24-853: (Pwn2Own) Autel MaxiCharger AC Elite Business C50 WebSocket Base64 Decoding Stack-based Buffer Overflow Remote Code Execution Vulnerability
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Autel MaxiCharger AC Elite Business C50 chargers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the handling of base64-encoded data within WebSocket messages. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the device.
Other sources
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Autel MaxiCharger AC Elite Business C50 chargers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The ZDI has assigned a CVSS rating of 8.0. The following CVEs are assigned: CVE-2024-23967.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-24-853?
The ZDI-24-853 vulnerability is considered critical due to the potential for arbitrary code execution.
How do I fix ZDI-24-853?
To mitigate ZDI-24-853, apply the latest security patches provided by Autel for the MaxiCharger AC Elite Business C50.
Who is affected by ZDI-24-853?
ZDI-24-853 affects installations of the Autel MaxiCharger AC Elite Business C50.
What type of vulnerability is ZDI-24-853?
ZDI-24-853 is a remote code execution vulnerability that allows attackers to execute arbitrary code on affected devices.
Is authentication required to exploit ZDI-24-853?
Yes, while authentication is required to exploit ZDI-24-853, the existing authentication mechanism can be bypassed.