CVE-2026-27555 in ICE2-8IOL1-G65L-V1D
Summary
by MITRE • 09/16/2026
A low-privileged remote attacker can exploit a local file inclusion vulnerability in the /index.php/ajax/get_iodd_port_info endpoint using a valid user cookie allowing execution of arbitrary PHP code on the device.
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Analysis
by VulDB Data Team • 09/16/2026
The identified vulnerability represents a critical security flaw within the web application interface, specifically targeting the /index.php/ajax/get_iodd_port_info endpoint. This local file inclusion (LFI) weakness allows an attacker with low-privileged remote access to manipulate server-side script execution by injecting malicious file paths or references into the request parameters. The exploitation mechanism relies on the presence of a valid user cookie, which serves as the authentication credential required to interact with this specific API endpoint. Once authenticated, the attacker can supply crafted input that bypasses intended validation checks, causing the underlying PHP application to include and execute arbitrary files from the local file system rather than processing legitimate data requests.
From a technical perspective, this vulnerability stems from insufficient sanitization of user-supplied input before it is passed to PHP's include or require functions. The application fails to properly validate whether the provided path corresponds to an expected resource within the designated directory structure. This lack of strict allowlisting enables the inclusion of external files that may contain malicious code. When the server processes this included file, it executes its contents with the same privileges as the web service process. Consequently, if the web application runs under a user account with elevated permissions or access to sensitive system directories, the attacker can achieve remote code execution (RCE) on the target device. This transforms what might initially appear as a simple data retrieval endpoint into a powerful vector for full system compromise.
The operational impact of this vulnerability is severe and far-reaching. Successful exploitation grants an unauthenticated or low-privileged user the ability to execute arbitrary PHP commands, effectively taking control of the application's runtime environment. An attacker could use this access to read sensitive configuration files, extract database credentials, steal session tokens from other users, or install persistent backdoors for long-term unauthorized access. In many embedded devices and network appliances, such code execution can lead to complete device takeover, allowing the adversary to pivot into internal networks, exfiltrate proprietary data, or disrupt critical services. The requirement of a valid user cookie means that any registered account, even with minimal administrative rights, becomes a potential entry point for escalating privileges and compromising the entire infrastructure.
This vulnerability aligns closely with CWE-98 Improper Control of Filename for Include Statement in PHP Programs, which categorizes flaws where input is used to determine file inclusion without adequate validation. Furthermore, from an offensive security framework perspective, this exploit maps directly to MITRE ATT&CK technique T1059 Command and Scripting Interpreter: PHP, as it involves the execution of arbitrary code via a scripting language. It also relates to T1190 Exploit Public-Facing Application if the endpoint is accessible over the network without sufficient access controls. The reliance on valid credentials places this within the context of initial access vectors that require user interaction or compromised accounts, highlighting the importance of robust input validation and least-privilege principles in web application development.
Mitigation strategies must focus on eliminating the root cause by enforcing strict allowlisting for file inclusion operations. Developers should avoid using dynamic variables directly in include statements whenever possible. Instead, they should map specific inputs to predefined constants or use a switch-case structure to determine which files are safe to load. If dynamic loading is necessary, input validation must ensure that only expected filenames and extensions are accepted, rejecting any path traversal sequences such as ../ or null bytes. Additionally, implementing Web Application Firewalls (WAF) rules can provide an additional layer of defense by detecting and blocking requests containing suspicious file paths. Regular security audits and static code analysis tools should be employed to identify similar patterns across the application codebase. Ensuring that the web server process runs with minimal privileges further limits the potential damage in case a vulnerability is successfully exploited, reducing the scope of system compromise.