CVE-2024-23967 - Autel MaxiCharger AC Elite Business C50 WebSocket Base64 Decoding Stack-based Buffer Overflow Remote Code Execution Vulnerability

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HIGH

Autel MaxiCharger AC Elite Business C50 WebSocket Base64 Decoding Stack-based Buffer Overflow Remote Code Execution Vulnerability

Published Sep 28, 2024

8.0

HIGH

CVSS 3.1

EPSS 0.91%

Description

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.

Was ZDI-CAN-23230

Affected products

Vendor Autel Product MaxiCharger AC Elite Business C50 Default
n/a
- Version
  1.32.00
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Autel

MaxiCharger AC Elite Business C50

n/a

Version	Status	Constraints
1.32.00	affected	-

Vendor Autel Product Maxicharger AC Elite Business C50 EU Firmware Default
n/a
- Version
  0
  Status
  affected
  Constraints
  <1.50
Vendor Autel Product Maxicharger AC Elite Business C50 Firmware Default
n/a
- Version
  0
  Status
  affected
  Constraints
  <1.35