CVE-2024-34577 in WRC-X3000GS2-B
Summary
by MITRE • 08/30/2024
Cross-site scripting vulnerability exists in WRC-X3000GS2-B, WRC-X3000GS2-W, and WRC-X3000GS2A-B due to improper processing of input values in easysetup.cgi. If a user views a malicious web page while logged in to the product, an arbitrary script may be executed on the user's web browser.
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Analysis
by VulDB Data Team • 03/11/2025
This cross-site scripting vulnerability affects several models of network security appliances including the WRC-X3000GS2-B, WRC-X3000GS2-W, and WRC-X3000GS2A-B devices. The flaw resides in the easysetup.cgi component which fails to properly sanitize or validate input parameters before processing them within the web interface. When a victim visits a malicious webpage while maintaining an active session with the affected device, the vulnerability allows an attacker to inject and execute arbitrary JavaScript code within the victim's browser context. This represents a critical security weakness that directly violates the principle of input validation and output encoding as outlined in CWE-79, which specifically addresses cross-site scripting vulnerabilities. The vulnerability stems from improper handling of user-supplied data in web applications, creating an environment where attacker-controlled content can be executed with the privileges of the authenticated user. The attack vector is particularly concerning because it requires no special privileges beyond having a valid session with the device, making it exploitable through social engineering tactics where users are tricked into visiting malicious sites while logged into their network equipment. This vulnerability directly maps to ATT&CK technique T1566.001, which describes phishing attacks that leverage web-based exploits to gain initial access or execute malicious code in the victim's browser environment.
The operational impact of this vulnerability extends beyond simple script execution as it can enable sophisticated attack chains including session hijacking, credential theft, and privilege escalation within the network infrastructure. An attacker could potentially leverage this vulnerability to establish persistent access to the network by stealing session tokens or credentials, or to manipulate the device's configuration settings through the compromised browser session. The affected devices serve as network gateways and security appliances, making them prime targets for attackers seeking to establish footholds within enterprise networks. The vulnerability's exploitation requires minimal user interaction beyond visiting a malicious webpage, which significantly increases the attack surface and makes it particularly dangerous in environments where users may encounter untrusted content. The improper input validation in easysetup.cgi creates a persistent security gap that allows attackers to bypass normal authentication mechanisms and execute malicious code in the context of the authenticated user's session.
Mitigation strategies for this vulnerability should prioritize immediate patching of affected devices through official firmware updates provided by the vendor. Network administrators should implement strict web filtering policies to prevent users from accessing suspicious or untrusted websites, particularly those that might host malicious content designed to exploit this vulnerability. The implementation of Content Security Policy headers can provide additional protection against script injection attacks by restricting the sources from which scripts can be loaded. Regular security audits should include verification of input validation mechanisms within web applications and thorough testing of CGI scripts for proper sanitization of user inputs. Network segmentation and privileged access controls should be enforced to limit the potential impact of successful exploitation, ensuring that even if an attacker gains access through this vulnerability, they cannot easily escalate privileges or move laterally within the network. Organizations should also consider implementing web application firewalls to detect and block malicious requests targeting known vulnerable endpoints. The vulnerability highlights the importance of following secure coding practices including input validation, output encoding, and proper error handling as recommended in OWASP Top 10 and NIST cybersecurity guidelines. Regular security awareness training for network administrators and end users can help reduce the risk of successful social engineering attacks that exploit this vulnerability.