CVE-2025-2071 in Silent Brick WebUI
Summary
by MITRE • 03/31/2025
A critical OS Command Injection vulnerability has been identified in the FAST LTA Silent Brick WebUI, allowing remote attackers to execute arbitrary operating system commands via specially crafted input. This vulnerability arises due to improper handling of untrusted input, which is passed directly to system-level commands without adequate sanitization or validation. Successful exploitation could allow attackers to execute arbitrary commands on the affected system, potentially resulting in unauthorized access, data leakage, or full system compromise. Affected WebUI parameters are "hd" and "pi".
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Analysis
by VulDB Data Team • 03/31/2025
This critical operating system command injection vulnerability exists within the FAST LTA Silent Brick WebUI interface, representing a severe security flaw that enables remote attackers to execute arbitrary system commands through carefully crafted input vectors. The vulnerability stems from inadequate input validation and sanitization mechanisms within the web application's processing logic, where user-supplied parameters are directly incorporated into system-level commands without proper security controls. The specific affected parameters "hd" and "pi" serve as entry points for malicious input that bypasses normal security boundaries and allows unauthorized command execution at the operating system level. This type of vulnerability falls under the CWE-77 category, specifically classified as OS Command Injection, which is a well-documented weakness that has been consistently identified across numerous security assessments and penetration testing engagements.
The operational impact of this vulnerability extends far beyond simple unauthorized command execution, creating a comprehensive attack surface that could lead to complete system compromise and data exfiltration. Attackers exploiting this flaw could gain persistent access to the underlying operating system, potentially escalating privileges to root or administrator levels depending on the system configuration. The vulnerability's remote exploitability means that attackers do not require physical access or local credentials to initiate attacks, making it particularly dangerous in networked environments where the web interface is accessible from external networks. This type of vulnerability is frequently mapped to ATT&CK technique T1059.001 for Command and Scripting Interpreter, and T1078 for Valid Accounts, as attackers can leverage the compromised system to establish persistent access and move laterally within networks.
The exploitation of this vulnerability demonstrates a fundamental failure in input sanitization and security architecture design, where the web application fails to implement proper parameter validation or escape sequences before executing system commands. The affected parameters "hd" and "pi" likely represent hardware device identifiers and processing instructions respectively, but their improper handling creates a direct pathway for command injection attacks. Organizations should immediately implement network segmentation to restrict access to the affected web interface, deploy web application firewalls to monitor and block suspicious command injection patterns, and conduct comprehensive security assessments of all web applications to identify similar vulnerabilities. The vulnerability's critical severity classification indicates that immediate remediation is necessary, as it provides attackers with a straightforward path to system compromise without requiring advanced exploitation techniques or privileged access. Security teams should also consider implementing automated monitoring solutions that can detect anomalous command execution patterns and establish incident response procedures specifically tailored to address OS command injection attacks.