This vulnerability allows stored cross-site scripting (XSS) via the remark parameter to /manage/ipsec/ in Endian Firewall versions 3.3.25 and prior. An authenticated attacker can inject arbitrary JavaScript that is stored and executed when other users view the affected page. The impact of this vulnerability is classified as medium with a CVSS score of 5.1.
Risk to organizations includes unauthorized execution of scripts in the context of other users, potentially leading to data theft or session hijacking. The vulnerability has been acknowledged in vulnerability databases but currently has no known exploits reported.
Given the nature of XSS vulnerabilities, organizations should prioritize patching immediately. Exploitation requires low privileges with passive user interaction, making it imperative for affected users to apply available updates.
The vulnerability is documented under CWE-79, indicating a cross-site scripting weakness. Organizations should assess their exposure and ensure that their versions of Endian Firewall are updated.
Vulnerability Details
Endian Firewall version 3.3.25 and prior allow stored cross-site scripting (XSS) via the remark parameter to /manage/ipsec/. An authenticated attacker can inject arbitrary JavaScript that is stored and executed when other users view the affected page. The vulnerability has a CVSS score of 5.1 and is classified as medium severity.
The attack vector is network-based, with a low attack complexity. The required privileges are low, and user interaction is passive, meaning the vulnerability can be exploited without active participation from the user.
The vulnerability is categorized under CWE-79, which pertains to improper neutralization of input during web page generation ('cross-site scripting').
Technical Analysis
The root cause of this vulnerability lies in the improper handling of user inputs in the remark parameter within the /manage/ipsec/ interface. The application does not adequately sanitize input, allowing attackers to insert malicious JavaScript code.
The attack vector is network-based, where an attacker with authenticated access can exploit the vulnerability. The attack complexity is low, meaning that an attacker does not require advanced skills to exploit this vulnerability.
Privileges required are low, as only authenticated users can perform the actions necessary for exploitation. User interaction is passive, as other users will trigger the execution of the injected script without needing to interact with the attacker.
The confidentiality impact is low, as the attacker may retrieve sensitive information via the executed script. Integrity is also impacted as the attacker can manipulate the content seen by users. However, availability is not directly impacted.
Risk & Impact Analysis
Organizations using affected versions of Endian Firewall face significant risks, including data exposure and unauthorized actions performed in the context of legitimate users. The potential for data theft or manipulation exists, particularly if the application is used to manage sensitive information.
The blast radius for this vulnerability is considerable due to the network attack vector, which can be exploited by any authenticated user. Organizations should assess their environments to determine the potential impact and prioritize patching.
Because the CVSS score is medium, organizations should address this vulnerability in their priority patch cycle. Given its nature as an XSS vulnerability, the potential for exploitation can lead to serious consequences if not remediated.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions prior to Endian Firewall version 3.3.26 are vulnerable to this issue. Organizations should ensure they have updated to the latest version where this vulnerability has been patched.
Mitigation & Remediation
Organizations should apply the latest patches provided by Endian to address this vulnerability. Ensure that your systems are updated to Endian Firewall version 3.3.26 or later to mitigate the risk of exploitation.
In the absence of a patch, organizations can implement input validation and sanitization measures to prevent the injection of malicious scripts into web pages. Additionally, monitoring for unusual user activities can help detect potential exploitation attempts.
For further guidance, organizations may consider engaging with professional services for comprehensive security assessments, including application security assessments to identify similar vulnerabilities.
Detection Guidance
To detect potential exploitation of this vulnerability, organizations should monitor logs for any unusual activity related to the /manage/ipsec/ interface. Behavioral anomalies, such as unexpected JavaScript execution or unauthorized changes made by authenticated users, should be flagged for review.
Network signatures that capture requests to the remark parameter can also be employed to identify malicious injection attempts. Regular audits of user activities may further assist in detecting exploitation.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability lies in the trend of increasing XSS vulnerabilities within network devices. As attackers become more sophisticated, the potential for these vulnerabilities to be exploited serves as a reminder for organizations to ensure robust security measures.
Security teams should take this opportunity to review their XSS prevention strategies, including input validation and output encoding practices. This incident highlights the importance of continuous monitoring and rapid remediation of vulnerabilities.
Organizations are encouraged to adopt a proactive approach to vulnerability management by implementing regular security assessments and engaging in penetration testing to identify and remediate similar weaknesses before they can be exploited.
For further reading on vulnerability management and assessment strategies, organizations can refer to the following resources:
Vulnerability Management Program Design, Penetration Testing Methodology, and Web Application Penetration Testing articles.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
.webp)