CVE-2022-43376 in NetBotz
Summary
by MITRE • 04/18/2023
A CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability exists that could cause code and session manipulation when malicious code is inserted into the browser.
Affected Products: NetBotz 4 - 355/450/455/550/570 (V4.7.0
and prior)
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Analysis
by VulDB Data Team • 05/13/2023
The vulnerability identified as CVE-2022-43376 represents a critical cross-site scripting flaw classified under CWE-79, which specifically addresses improper neutralization of input during web page generation. This weakness occurs when web applications fail to properly sanitize user-supplied data before incorporating it into dynamically generated web content, creating opportunities for attackers to inject malicious scripts that execute within the context of other users' browsers. The vulnerability affects NetBotz monitoring devices in versions 4.7.0 and earlier, including models 4, 355, 450, 455, 550, and 570, making these systems susceptible to session manipulation and code execution attacks that can compromise the entire monitoring infrastructure.
The technical exploitation of this vulnerability occurs when malicious input is processed by the NetBotz web interface without adequate sanitization or encoding measures. Attackers can inject malicious scripts through various input vectors within the device management interface, potentially including configuration parameters, alert settings, or user-defined fields that are subsequently rendered in web pages. When legitimate users view these compromised pages, the injected scripts execute in their browser context, potentially stealing session cookies, redirecting users to malicious sites, or performing unauthorized actions on behalf of authenticated users. This flaw directly violates the principle of input validation and output encoding, which are fundamental security measures required to prevent XSS attacks according to the OWASP Top Ten security framework.
The operational impact of CVE-2022-43376 extends beyond simple script execution, as it enables sophisticated attack vectors that can compromise the integrity and confidentiality of network monitoring data. An attacker who successfully exploits this vulnerability could manipulate session tokens to gain persistent access to the NetBotz management interface, potentially leading to complete system compromise and unauthorized access to critical infrastructure monitoring data. The vulnerability affects devices that are often deployed in sensitive network environments where monitoring and security data are crucial for maintaining operational security, making the potential impact particularly severe. This weakness also aligns with ATT&CK technique T1059.007 for command and scripting interpreter and T1566.001 for credential access through social engineering, as the attack chain could involve session hijacking and privilege escalation.
Mitigation strategies for this vulnerability require immediate implementation of input sanitization measures and output encoding protocols within the affected NetBotz devices. Organizations should prioritize updating to the latest firmware versions that address this specific XSS vulnerability, as provided by the vendor. Additionally, network segmentation and access controls should be implemented to limit exposure of these monitoring devices to untrusted networks. The implementation of Content Security Policy headers, proper input validation, and output encoding mechanisms would provide defense-in-depth measures against similar vulnerabilities. Security teams should also conduct thorough vulnerability assessments of the monitoring infrastructure and establish monitoring procedures to detect potential exploitation attempts, as outlined in the NIST Cybersecurity Framework and ISO 27001 security standards for information security management.