CVE-2015-5354 in OS Elche
Summary
by MITRE
Open redirect vulnerability in Novius OS 5.0.1 (Elche) allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a URL in the redirect parameter to admin/nos/login.
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 01/26/2025
The CVE-2015-5354 vulnerability represents a critical open redirect flaw discovered in Novius OS version 5.0.1, specifically within the administrative login component. This vulnerability exists in the redirect parameter handling mechanism of the admin/nos/login endpoint, creating a pathway for malicious actors to manipulate user navigation flows. The flaw allows remote attackers to craft specially formatted URLs that will redirect users from legitimate administrative interfaces to attacker-controlled domains, effectively bypassing normal security controls that would typically prevent such redirections.
The technical implementation of this vulnerability stems from inadequate input validation and sanitization within the redirect parameter processing logic. When users attempt to access the administrative login page, the system accepts a redirect parameter that specifies where users should be sent after successful authentication. However, the application fails to properly validate or sanitize this parameter, allowing attackers to inject malicious URLs that can redirect users to phishing sites or malicious domains. This type of vulnerability falls under the CWE-601 category of URL Redirect to Untrusted Site, which is classified as a high-severity issue in the Common Weakness Enumeration system. The vulnerability essentially creates a trust relationship that can be exploited to manipulate user behavior through social engineering attacks.
The operational impact of this vulnerability is significant, as it provides attackers with a straightforward method to conduct sophisticated phishing campaigns against legitimate users of the Novius OS platform. When users attempt to log into the administrative interface and are redirected to malicious sites, they may unknowingly provide credentials or sensitive information to attackers. This creates a direct pathway for credential theft, data exfiltration, and potential system compromise. The vulnerability is particularly dangerous because it operates at the administrative level, meaning successful exploitation could lead to complete system control. Attackers can leverage this vulnerability to create convincing phishing pages that appear legitimate due to the trust established with the original Novius OS application, making it easier to deceive users into providing sensitive information.
Mitigation strategies for CVE-2015-5354 should focus on implementing strict input validation and whitelisting mechanisms for redirect parameters. Organizations should ensure that all redirect URLs are validated against a predetermined list of trusted domains and that absolute URLs are properly sanitized before being processed. The implementation should follow the principle of least privilege and avoid accepting user-supplied redirect parameters entirely where possible. Security measures should include validating that redirect destinations are within the same domain or explicitly trusted domains, and implementing proper logging and monitoring of redirect activities to detect potential abuse. From an ATT&CK framework perspective, this vulnerability maps to techniques involving social engineering and credential access through phishing, and should be addressed through defensive measures that prevent open redirect exploitation and enhance user awareness training. The vulnerability also highlights the importance of proper web application security testing and input validation practices, as it represents a fundamental flaw in how the application handles user-supplied data in authentication flows.