Almost two dozen safety vulnerabilities have been disclosed in Advantech EKI industrial-grade wi-fi entry level gadgets, a few of which might be weaponized to bypass authentication and execute code with elevated privileges.
“These vulnerabilities pose important dangers, permitting unauthenticated distant code execution with root privileges, thereby totally compromising the confidentiality, integrity, and availability of the affected gadgets,” cybersecurity firm Nozomi Networks mentioned in a Wednesday evaluation.
Following accountable disclosure, the weaknesses have been addressed within the following firmware variations –
- 1.6.5 (for EKI-6333AC-2G and EKI-6333AC-2GD)
- 1.2.2 (for EKI-6333AC-1GPO)
Six of the recognized 20 vulnerabilities have been deemed essential, permitting an attacker to acquire persistent entry to inner sources by implanting a backdoor, set off a denial-of-service (DoS) situation, and even repurpose contaminated endpoints as Linux workstations to allow lateral motion and additional community penetration.
Of the six essential flaws, 5 (from CVE-2024-50370 by way of CVE-2024-50374, CVSS scores: 9.8) relate to improper neutralization of particular parts utilized in an working system (OS) command, whereas CVE-2024-50375 (CVSS rating: 9.8) considerations a case of lacking authentication for a essential operate.
Additionally of be aware is CVE-2024-50376 (CVSS rating: 7.3), a cross-site scripting flaw that might be chained with CVE-2024-50359 (CVSS rating: 7.2), one other occasion of OS command injection that might in any other case require authentication, to attain arbitrary code execution over-the-air.
That mentioned, to ensure that this assault to achieve success, it requires the exterior malicious consumer to be in bodily proximity to the Advantech entry level and broadcast a rogue entry level.
The assault will get activated when an administrator visits the “Wi-Fi Analyzer” part within the internet software, inflicting the web page to robotically embed info obtained by way of beacon frames broadcasted by the attacker with none sanitization checks.
“One such piece of data an attacker might broadcast by way of its rogue entry level is the SSID (generally known as the ‘Wi-Fi community title’),” Nozomi Networks mentioned. “The attacker might due to this fact insert a JavaScript payload as SSID for its rogue entry level and exploit CVE-2024-50376 to set off a Cross-Web site Scripting (XSS) vulnerability inside the net software.”
The result’s the execution of arbitrary JavaScript code within the context of the sufferer’s internet browser, which might then be mixed with CVE-2024-50359 to attain command injection on the OS stage with root privileges. This might take the type of a reverse shell that gives persistent distant entry to the risk actor.
“This may allow attackers to achieve distant management over the compromised machine, execute instructions, and additional infiltrate the community, extracting information or deploying extra malicious scripts,” the corporate mentioned.
