A vulnerability was found in FiberHome AN5506-01A ONU GPON RP2511. It has been rated as problematic. This issue affects some unknown processing of the file /goform/URL_filterCfg of the component URL Filtering Submenu. The manipulation of the argument url_IP leads to cross-site scripting. The attack may be initiated 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.
The vulnerability has been assigned a CVSS score of 4.8, indicating a medium severity level. Organizations should be aware that this vulnerability poses a risk due to the potential for attackers to execute cross-site scripting attacks, which could lead to unauthorized access and data manipulation.
Risk to organizations includes potential exploitation of the vulnerability that could compromise the integrity of the affected systems. Organizations should prioritize patching immediately.
The urgency for defenders to address this vulnerability is high, as the public disclosure of the exploit increases the likelihood of targeted attacks. Remediation efforts should be initiated as soon as possible to mitigate risks.
Vulnerability Details
FiberHome AN5506-01A ONU GPON RP2511 contains a vulnerability that affects the URL Filtering Submenu. This vulnerability allows for cross-site scripting (XSS) attacks through manipulation of the url_IP argument in the URL_filterCfg file.
The CVSS score of 4.8 indicates a medium severity level, categorized primarily due to its potential impact on integrity. The vulnerability was published on February 24, 2025, and is classified under CWE-79 (Improper Neutralization of Input During Web Page Generation) and CWE-94 (Improper Control of Generation of Code ('Code Injection')).
The affected product is the FiberHome AN5506-01A firmware version RP2511. Organizations should ensure that they are using the latest firmware version to avoid exposure to this vulnerability.
Technical Analysis
The root cause of this vulnerability lies in the improper handling of input within the URL filtering mechanism. Attackers may leverage this vulnerability through a network attack vector, as it requires high privileges and passive user interaction.
The attack complexity is considered low, allowing for easier exploitation by attackers with sufficient privileges. This vulnerability can lead to integrity impact but does not affect confidentiality or availability.
Risk & Impact Analysis
Real-world deployment risks include the potential for unauthorized access and data manipulation resulting from successful exploitation of the vulnerability. The blast radius could affect multiple users relying on the FiberHome AN5506-01A ONU GPON RP2511 for secure communication.
Organizations should take this vulnerability seriously as it poses a significant threat to their network integrity and the security of sensitive data. The urgency assessment based on the CVSS score indicates that organizations should address this vulnerability in priority patch cycles.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected version is the FiberHome AN5506-01A firmware, specifically version RP2511. Organizations should ensure they upgrade to the latest firmware to mitigate the vulnerability.
Mitigation & Remediation
Organizations should prioritize patching the FiberHome AN5506-01A firmware to remediate this vulnerability. If a patch is not immediately available, consider implementing configuration hardening measures to limit exposure to potential XSS attacks.
For further assistance, organizations may explore penetration testing services to evaluate their security posture.
Detection Guidance
Organizations should monitor logs for unusual patterns associated with URL filtering configurations. Behavioral anomalies may indicate attempts to exploit this vulnerability. Network signatures that track changes to the URL filtering settings should also be implemented.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability lies in its potential to affect a broad range of users relying on FiberHome devices. Security teams should be aware of the trends in cross-site scripting vulnerabilities and adopt proactive measures to mitigate risks.
This vulnerability represents a broader pattern of web application vulnerabilities that can be exploited if left unaddressed. Security teams should focus on education and awareness around secure coding practices to prevent similar issues.
For more insights, organizations can refer to our blog on penetration testing methodology and the importance of regular security assessments.
Additionally, organizations should consider reviewing their vulnerability management programs to ensure comprehensive coverage against emerging threats.
Finally, organizations can gain insights from our API penetration testing guide to further bolster their security posture against similar vulnerabilities.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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