CVE-2017-14119 in EyesOfNetwork Web Interface
Summary
by MITRE
In the EyesOfNetwork web interface (aka eonweb) 5.1-0, module\tool_all\tools\snmpwalk.php does not properly restrict popen calls, which allows remote attackers to execute arbitrary commands via shell metacharacters in a parameter.
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Analysis
by VulDB Data Team • 11/12/2019
The CVE-2017-14119 vulnerability resides within the EyesOfNetwork web interface version 5.1-0, specifically in the ool_all module located at tools/snmpwalk.php. This represents a critical command injection flaw that fundamentally undermines the security posture of the network monitoring platform. The vulnerability stems from inadequate input validation and improper sanitization of user-supplied parameters before they are passed to the popen system call, creating an exploitable pathway for remote attackers to execute arbitrary code on the affected system.
The technical implementation of this vulnerability involves the web application's failure to properly escape or filter shell metacharacters within user-controllable parameters. When an attacker submits malicious input containing shell operators such as semicolons, ampersands, or backticks, these characters are directly incorporated into the popen command execution context. This allows adversaries to chain commands and execute arbitrary code with the privileges of the web application user, typically running as a privileged system account. The vulnerability operates at the operating system level where the application interfaces with the shell, making it particularly dangerous as it bypasses higher-level application security controls.
From an operational perspective, this vulnerability presents a severe risk to network monitoring environments that rely on EyesOfNetwork for security operations. Remote attackers can leverage this flaw to gain unauthorized access to the underlying system, potentially escalating privileges to root access depending on the execution context. The impact extends beyond simple code execution as attackers can use this capability to establish persistent backdoors, exfiltrate sensitive data, or deploy additional malware within the network infrastructure. Network defenders face significant challenges in detecting such attacks since legitimate SNMP monitoring operations can mask malicious command execution activities.
The vulnerability aligns with CWE-78, which specifically addresses "Improper Neutralization of Special Elements used in an OS Command," and maps directly to ATT&CK technique T1059.001 for Command and Scripting Interpreter. Organizations using EyesOfNetwork version 5.1-0 should immediately implement mitigations including input validation and sanitization of all user-supplied parameters, implementing proper escaping of shell metacharacters, and applying the vendor-provided security patches. Network segmentation and monitoring of suspicious command execution patterns can serve as additional defensive measures, while regular security assessments should verify that similar vulnerabilities do not exist in other modules of the application. The remediation process requires careful attention to ensure that all user inputs are properly validated against a whitelist of acceptable characters and that the application's privilege levels are appropriately restricted to prevent unauthorized system access.