CVE-2025-1614 in AN5506-01A ONU GPON
Summary
by MITRE • 02/24/2025
A vulnerability classified as problematic has been found in FiberHome AN5506-01A ONU GPON RP2511. Affected is an unknown function of the file /goform/portForwardingCfg of the component Port Forwarding Submenu. The manipulation of the argument pf_Description leads to cross site scripting. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
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Analysis
by VulDB Data Team • 02/24/2025
This vulnerability resides within the FiberHome AN5506-01A ONU GPON device running RP2511 firmware, specifically targeting the port forwarding configuration functionality. The affected component is located at /goform/portForwardingCfg within the Port Forwarding Submenu, representing a critical web interface component that handles user input for network port forwarding rules. The vulnerability stems from inadequate input validation and sanitization of the pf_Description parameter, which is processed through the web form interface without proper security measures. This allows malicious actors to inject arbitrary JavaScript code that executes within the context of other users' browsers when they access the affected web interface.
The cross site scripting vulnerability (cwe-79) represents a severe security flaw that enables attackers to execute malicious scripts in victims' browsers, potentially leading to session hijacking, data theft, or unauthorized administrative actions. The attack vector is remote, meaning that an attacker can exploit this vulnerability without physical access to the device, simply by crafting malicious input through the web interface. The disclosed exploit demonstrates that attackers can manipulate the pf_Description parameter to inject script tags that persist in the device's configuration interface, making the vulnerability particularly dangerous as it affects all users who interact with the port forwarding submenu. The lack of vendor response despite early notification indicates a potential gap in security disclosure processes and suggests the vulnerability may remain unpatched for extended periods.
The operational impact of this vulnerability extends beyond simple script execution, as it compromises the integrity of the device's web interface and potentially the entire network security posture. An attacker could leverage this vulnerability to gain unauthorized access to the device configuration, modify port forwarding rules, or redirect traffic to malicious endpoints. The vulnerability affects the device's authentication and authorization mechanisms by allowing attackers to manipulate the user interface in ways that could bypass security controls. This represents a significant risk to network infrastructure security, particularly in enterprise environments where such devices may be deployed without proper network segmentation or additional security controls. The vulnerability aligns with attack techniques described in the attack pattern taxonomy under web application attacks and could facilitate lateral movement within networks where these devices are deployed.
Mitigation strategies should include immediate network segmentation to isolate affected devices from critical network segments, implementing web application firewalls to filter malicious input, and disabling unnecessary web interface functionality where possible. Network administrators should monitor for suspicious activity in device logs and implement regular security assessments to identify similar vulnerabilities in other network equipment. The lack of vendor response underscores the importance of maintaining internal security awareness and developing contingency plans for unpatched vulnerabilities. Organizations should also consider implementing network access controls and monitoring solutions that can detect and prevent exploitation attempts. The vulnerability demonstrates the critical need for regular firmware updates and security audits of network infrastructure devices, as well as adherence to security standards such as those outlined in the open web application security project (owasp) and common weakness enumeration (cwe) frameworks to prevent similar issues in the future.