CVE-2024-7077 in Sempos
Summary
by MITRE • 09/04/2024
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Semtek Informatics Software Consulting Inc. Semtek Sempos allows Reflected XSS.
This issue affects Semtek Sempos: through 31072024.
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Analysis
by VulDB Data Team • 06/03/2026
The vulnerability identified as CVE-2024-7077 represents a critical cross-site scripting weakness in Semtek Sempos software version 31072024 and earlier. This reflected cross-site scripting vulnerability stems from inadequate input sanitization during web page generation processes, creating a pathway for malicious actors to inject client-side scripts into web applications. The flaw manifests when user-supplied data is directly incorporated into web responses without proper validation or encoding mechanisms, allowing attackers to execute arbitrary JavaScript code within the context of victim browsers. This particular vulnerability falls under the CWE-79 category of Cross-site Scripting, which is classified as a fundamental web application security weakness that has persisted across numerous systems due to insufficient input filtering and output encoding practices.
The operational impact of this reflected XSS vulnerability extends beyond simple data theft or session hijacking, as it enables attackers to manipulate web applications and potentially gain unauthorized access to sensitive information. When users interact with vulnerable web pages, malicious scripts embedded in input parameters can execute in their browsers, potentially leading to credential theft, data exfiltration, or redirection to malicious sites. The reflected nature of this vulnerability means that the malicious script is reflected off the web server rather than being stored, making it particularly challenging to detect through traditional security monitoring approaches. Attackers can craft malicious URLs containing script payloads that, when clicked by unsuspecting users, will execute the malicious code within the user's browser session, effectively impersonating the user and potentially accessing restricted resources or performing unauthorized actions.
Security practitioners should recognize this vulnerability as a prime example of how insufficient input validation can create persistent security risks in web applications. The vulnerability's exploitation requires minimal technical expertise, making it particularly dangerous as it can be leveraged by attackers with varying skill levels. Organizations utilizing Semtek Sempos software must understand that this reflected XSS vulnerability can facilitate various attack vectors including credential harvesting, session manipulation, and potentially full system compromise if the application has elevated privileges. The risk assessment should consider both the immediate impact on user sessions and the potential for lateral movement within network environments where the vulnerable application resides. According to ATT&CK framework, this vulnerability maps to T1531 (Account Access Removal) and T1071.001 (Application Layer Protocol: Web Protocols) as attackers can leverage the XSS to manipulate application behavior and access user accounts through session hijacking techniques.
Mitigation strategies for CVE-2024-7077 should prioritize immediate implementation of input validation and output encoding mechanisms throughout the application's web interface. The most effective remediation involves implementing proper HTML encoding for all user-supplied data before rendering it in web pages, ensuring that any potentially malicious script content is neutralized through proper escaping techniques. Organizations should also deploy Content Security Policy (CSP) headers to prevent unauthorized script execution and implement proper input sanitization at multiple layers of the application architecture. Additionally, regular security testing including automated vulnerability scanning and manual penetration testing should be conducted to identify similar weaknesses in the application's codebase. The remediation process should include updating to the latest version of Semtek Sempos software where this vulnerability has been addressed, implementing web application firewalls to detect and block malicious payloads, and establishing comprehensive logging and monitoring systems to detect potential exploitation attempts. Security teams should also conduct user awareness training to help identify suspicious links and prevent social engineering attacks that may leverage this vulnerability.