CVE-2026-104935 Scanner

Ivanti Connect Secure is used widely in organizational environments for secure remote access to networks and resources. It provides VPN services to ensure secure communications for remote users and is used by various enterprises that require secure network access across distributed locations. This product is essential for IT departments that manage large networks, as it supports authentication, authorization, and secure communications. Ivanti Connect Secure is appreciated for its robust security features and ease of management, making it a preferred choice among large businesses and institutions. Often, companies rely on Ivanti Connect Secure for its integration capabilities, allowing seamless connectivity with other security devices and software.

The authentication bypass vulnerability in Ivanti Connect Secure leverages the mishandling of CGI script routing via improper request processing. When exploited, attackers can bypass the authentication layer, gaining unauthorized access to protected endpoints. This vulnerability is critical because it targets the authentication mechanism, allowing attackers to potentially take control of the system. The presence of a critical flaw like this could enable an attacker to perform actions with elevated privileges. This type of vulnerability poses significant risks to the confidentiality, integrity, and availability of the affected systems.

Technical details reveal that the vulnerability revolves around the misuse of the X-DSCGI-PATH header and the welcome.cgi endpoint in request routing. The flaw allows an unauthenticated attacker to craft requests to the unauthenticated welcome.cgi endpoint with the X-DSCGI-PATH header redirecting to authenticated scripts like wu.cgi. This bypasses security measures and permits unauthorized access. A vulnerability like this requires immediate attention and patching to prevent potential exploitation.

Exploiting this vulnerability could lead to unauthorized root-level remote code execution when combined with further vulnerabilities. If malicious actors exploit this vulnerability, the result could be system compromise, allowing attackers to perform actions as if they were authenticated and authorized users. This leads to threats such as data breaches, loss of sensitive data, and potential misuse of the compromised system for larger scale attacks.

REFERENCES

• https://www.volexity.com/blog/2026/10/13/a-series-of-unauthenticated-events-chained-exploitation-of-ivanti-connect-secure-zero-days/
• https://forums.ivanti.com