CVE-2014-8391 in Sendio
Summary
by MITRE
The Web interface in Sendio before 7.2.4 does not properly handle sessions, which allows remote authenticated users to obtain sensitive information from other users' sessions via a large number of request.
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Analysis
by VulDB Data Team • 06/09/2024
The vulnerability identified as CVE-2014-8391 affects the Web interface of Sendio versions prior to 7.2.4, representing a critical session management flaw that enables authenticated attackers to access sensitive data belonging to other users. This issue stems from inadequate session handling mechanisms within the application's web interface, creating a pathway for privilege escalation and information disclosure. The vulnerability specifically manifests when authenticated users exploit the improper session management to make numerous requests that ultimately allow them to harvest session tokens and associated sensitive information from other active user sessions. This type of vulnerability falls under the broader category of session management weaknesses that are classified under CWE-613, which addresses insufficient session expiration and inadequate session handling practices. The flaw represents a significant security gap in the authentication and authorization framework of the Sendio platform, potentially compromising user privacy and system integrity.
The technical exploitation of this vulnerability requires an attacker to already possess valid authentication credentials, making it an authenticated attack vector that leverages the trust relationship between legitimate users and the system. The attacker must initiate a series of requests that manipulate the session handling mechanisms to extract session identifiers or sensitive session data from other users. This process typically involves crafting specific HTTP requests that exploit the application's failure to properly validate or manage session state information. The underlying technical flaw likely resides in how the application generates, validates, or maintains session identifiers, allowing for session hijacking or session prediction attacks. The vulnerability demonstrates poor implementation of session isolation principles, where session data from one user is not properly segregated from another, creating a direct pathway for cross-user information leakage.
The operational impact of CVE-2014-8391 extends beyond simple information disclosure, potentially enabling attackers to impersonate other users, access confidential communications, or perform unauthorized actions within the Sendio system. This vulnerability undermines the fundamental security assumptions of user isolation and access control that should exist between different authenticated users. Organizations using Sendio versions before 7.2.4 face significant risk of data breaches, as attackers could gain access to sensitive email content, user credentials, configuration data, or other confidential information that should remain isolated to individual users. The vulnerability also impacts the system's overall integrity and availability, as it creates potential pathways for attackers to escalate privileges or maintain persistent access through stolen session tokens. From an attacker's perspective, this vulnerability aligns with techniques described in the ATT&CK framework under credential access and privilege escalation tactics, specifically targeting session management weaknesses to achieve unauthorized access.
Organizations should prioritize immediate remediation by upgrading to Sendio version 7.2.4 or later, which includes proper session handling mechanisms that address this vulnerability. Additional mitigations include implementing robust session management policies, ensuring proper session expiration times, and deploying monitoring solutions to detect anomalous request patterns that might indicate exploitation attempts. Security teams should also review and strengthen their authentication frameworks, implement session token randomization, and ensure proper session isolation between users. The vulnerability highlights the importance of following security best practices such as those outlined in the OWASP Top Ten, particularly focusing on session management and access control weaknesses. Regular security assessments and penetration testing should be conducted to identify similar session management flaws in other applications, as this type of vulnerability remains prevalent across many web applications due to improper implementation of session handling mechanisms and lack of proper security testing during development phases.