CVE-2026-27557 in ICE2-8IOL1-G65L-V1D
Summary
by MITRE • 09/16/2026
An unauthenticated remote attacker can exploit a path traversal vulnerability in the /index.php/view_uploaded_iodd_file endpoint allowing the SSH server's private keys to be read.
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Analysis
by VulDB Data Team • 09/16/2026
The identified vulnerability represents a critical security failure within an application interface, specifically targeting the index.php script at the view_uploaded_iodd_file endpoint. This flaw is classified as a path traversal or directory traversal vulnerability, which falls under CWE-22 in the Common Weakness Enumeration standard. The core technical issue stems from insufficient validation of user-supplied input parameters that dictate file access operations. When an unauthenticated remote attacker interacts with this specific endpoint, they can manipulate the request to include maliciously crafted sequences designed to escape the intended directory scope. By utilizing relative path notation such as dot-dot-slash characters or encoded variations thereof, the attacker bypasses the application's logical restrictions on which files are accessible through this interface.
The operational impact of exploiting this vulnerability is severe and potentially catastrophic for system integrity. The primary consequence described is the unauthorized reading of SSH server private keys. These cryptographic assets are fundamental to secure remote access protocols; their compromise allows an adversary to impersonate legitimate users or systems without requiring valid credentials. Once these keys are extracted, the attacker gains a persistent foothold within the network infrastructure. This capability effectively nullifies authentication mechanisms that rely on public-key cryptography, enabling lateral movement across connected systems and facilitating further exploitation of other services protected by compromised identities.
From an offensive security perspective, this vulnerability aligns with several tactics in the MITRE ATT&CK framework. The initial access phase is represented by techniques involving valid accounts or credentials obtained through prior compromise, while the specific method of accessing stored resources corresponds to data from local system directories. This scenario highlights a significant gap in input sanitization and path canonicalization practices within the application codebase. Developers failed to implement robust checks that ensure file paths remain confined to their designated safe zones before processing them for read operations.
Mitigation strategies must focus on immediate remediation of the source code alongside broader security hardening measures. The most direct fix involves implementing strict allow-listing for permitted file extensions and ensuring that all user inputs are validated against a predefined set of acceptable characters, rejecting any attempt to use path traversal sequences. Additionally, developers should employ canonicalization functions to resolve symbolic links and relative paths before checking them against allowed directories. It is also crucial to enforce principle of least privilege by running the web application with minimal system permissions, ensuring that even if an attacker succeeds in reading files, they cannot access sensitive areas like private key stores unless explicitly authorized for specific operational needs. Regular security audits and static code analysis tools should be integrated into the development lifecycle to detect such flaws early.