CVE-2017-11562 in SenhaSegura Web Application
Summary
by MITRE
A Session Fixation Vulnerability exists in the MT4 Networks SenhaSegura Web Application 2.2.23.8 via login_if.php.
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Analysis
by VulDB Data Team • 12/16/2019
The session fixation vulnerability identified in MT4 Networks SenhaSegura Web Application version 2.2.23.8 represents a critical authentication weakness that undermines the security of user sessions. This vulnerability specifically affects the login_if.php component of the web application, creating an opportunity for attackers to hijack user sessions and gain unauthorized access to sensitive systems. The flaw stems from the application's failure to properly regenerate session identifiers upon successful authentication, allowing malicious actors to establish a known session token that remains valid even after legitimate users authenticate.
From a technical perspective, the vulnerability operates by permitting the web application to maintain the same session identifier before and after user authentication. When a user accesses the application, a session is created with a predictable token that can be captured and reused by an attacker. This issue aligns with CWE-384, which specifically addresses session fixation vulnerabilities in web applications where session identifiers are not properly regenerated after authentication. The vulnerability exists because the application does not implement proper session management practices that are fundamental to secure authentication mechanisms.
The operational impact of this vulnerability extends beyond simple unauthorized access, as it can lead to complete system compromise and data breaches. An attacker who successfully exploits this vulnerability can maintain persistent access to user accounts, potentially gaining access to sensitive information, financial data, or administrative controls. The vulnerability creates a persistent threat vector that remains active until the session expires naturally, allowing attackers to conduct extended surveillance or execute malicious activities within the compromised environment. This risk is particularly concerning for financial institutions and organizations handling sensitive personal data.
Security practitioners should implement immediate mitigations including proper session regeneration upon successful authentication, implementing secure session management protocols, and ensuring that session tokens are not predictable or reusable across authentication boundaries. The mitigation strategies should align with industry best practices and standards such as those outlined in the OWASP Top Ten and NIST guidelines for secure web application development. Organizations should also consider implementing additional security controls including session timeout mechanisms, secure cookie attributes, and regular security assessments to identify and remediate similar vulnerabilities. The ATT&CK framework categorizes this vulnerability under credential access techniques, specifically targeting session management weaknesses that enable persistent unauthorized access to systems.