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 file with a custom script with arbitrary code, which will then be executed on the charging station.

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).

Category

9.3
CVSS
Severity: Critical
CVSS 4.0 •
CVSS 3.1 •
EPSS 1.34% Top 25%
Third-Party Advisory divd.nl Third-Party Advisory divd.nl
Affected: Iocharger Iocharger firmware for AC models
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2024-43657?
CVE-2024-43657 has been scored as a critical severity vulnerability.
How to fix CVE-2024-43657?
To fix CVE-2024-43657, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-43657 being actively exploited in the wild?
It is possible that CVE-2024-43657 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-43657?
CVE-2024-43657 affects Iocharger Iocharger firmware for AC models.
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