CVE-2024-43653
Published: 09 January 2025
Description
Improper Neutralization of Special Elements used in a Command ('Command Injection') vulnerability allows OS Command Injection as root This issue affects Iocharger firmware for AC model chargers before version 24120701. Likelihood: Moderate – The <redacted> binary does not seem to be used by the web interface, so it might be more difficult to find. It seems to be largely the same binary as used by the Iocharger Pedestal charging station, however. The attacker will also need a (low privilege) account to gain access to the <redacted> binary, or convince a user with such access to execute a crafted HTTP request. Impact: Critical – The attacker has full control over the charging station as the root user, and can arbitrarily add, modify and delete files and services. CVSS clarification: Any network interface serving the web ui is vulnerable (AV:N) and there are not additional security measures to circumvent (AC:L), nor does the attack require and existing preconditions (AT:N). The attack is authenticated, but the level of authentication does not matter (PR:L), nor is any user interaction required (UI:N). The attack leads to a full compromised (VC:H/VI:H/VA:H), and compromised devices can be used to pivot into networks that should potentially not be accessible (SC:L/SI:L/SA:H). Becuase this is an EV charger handing significant power, there is a potential safety impact (S:P). This attack can be automated (AU:Y).
Security Summary
CVE-2024-43653 is an Improper Neutralization of Special Elements used in a Command vulnerability, enabling OS command injection with root privileges and classified under CWE-78 and CWE-250. It affects the Iocharger firmware for AC model chargers in versions prior to 24120701, specifically involving a <redacted> binary that shares similarities with one used in the Iocharger Pedestal charging station.
Exploitation requires a low-privilege account to access the <redacted> binary or tricking a user with such access into executing a crafted HTTP request. While the binary is not directly exposed via the web interface—contributing to a moderate likelihood of discovery—successful attacks yield critical impact, granting full root control over the charging station for arbitrary addition, modification, and deletion of files and services. The CVSS v3.1 base score is 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H), indicating network accessibility without preconditions, low attack complexity, no user interaction, and high impacts across confidentiality, integrity, and availability, with potential for network pivoting and physical safety risks due to the device's power handling.
Advisories detail mitigation through firmware updates to version 24120701 or later. Additional guidance is available from DIVD CSIRT at https://csirt.divd.nl/CVE-2024-43653/ and https://csirt.divd.nl/DIVD-2024-00035/, with vendor information at https://iocharger.com.
Details
- CWE(s)