CVE-2024-43657: When uploading new firmware, a shell script inside a firmware file is executed during its processing. This can be used to craft a custom firmware f...
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: High. However, the attacker will need a (low privilege) account to gain access to the action.exe CGI binary and upload the crafted firmware file, or convince a user with such access to upload it.
Impact: Critical – The attacker has full control over the charging station as the root user, and can arbitrarily add, modify and deletefiles 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).
Classification
CVE ID: CVE-2024-43657
CVSS Base Severity: CRITICAL
CVSS Base Score: 9.3
Affected Products
Vendor: Iocharger
Product: Iocharger firmware for AC models
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.05% (probability of being exploited)
EPSS Percentile: 18.71% (scored less or equal to compared to others)
EPSS Date: 2025-02-07 (when was this score calculated)
References
https://csirt.divd.nl/DIVD-2024-00035/https://csirt.divd.nl/CVE-2024-43657/
https://iocharger.com