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THREATINT
PUBLISHED

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).

Reserved 2024-08-14 | Published 2025-01-09 | Updated 2025-01-09 | Assigner DIVD


CRITICAL: 9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:H/S:P/AU:Y

Problem types

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CWE-434 Unrestricted Upload of File with Dangerous Type

OWASP-A03: Injection

Product status

Default status
unaffected

Any version before 2024120701
affected

Credits

Wilco van Beijnum finder

Harm van den Brink (DIVD) analyst

Frank Breedijk (DIVD) analyst

References

csirt.divd.nl/DIVD-2024-00035/ third-party-advisory

csirt.divd.nl/CVE-2024-43657/ third-party-advisory

iocharger.com product

cve.org (CVE-2024-43657)

nvd.nist.gov (CVE-2024-43657)

Download JSON

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