CVE-2008-2134 in Nukeet
Summary
by MITRE
The Journal module in Tru-Zone Nuke ET 3.x allows remote attackers to obtain access to arbitrary user accounts, and alter or delete data, via a modified username in an unspecified cookie.
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Analysis
by VulDB Data Team • 09/24/2018
The vulnerability identified as CVE-2008-2134 represents a critical authentication bypass flaw within the Journal module of Tru-Zone Nuke ET 3.x content management system. This weakness stems from inadequate input validation and improper session management mechanisms that fail to properly verify the authenticity of user credentials. The vulnerability specifically manifests through manipulation of an unspecified cookie parameter containing username information, allowing malicious actors to impersonate legitimate users without proper authentication. The flaw falls under the category of insufficient authentication checks and weak session management practices that have been consistently documented in security frameworks including CWE-287, which addresses improper authentication vulnerabilities, and CWE-305, which covers authentication bypass through the use of cookies. Attackers exploiting this vulnerability can leverage the modified cookie to gain unauthorized access to arbitrary user accounts, effectively undermining the entire user access control system of the application.
The technical implementation of this vulnerability demonstrates a classic case of insecure cookie handling where the application relies on client-side data for critical authentication decisions. When a user logs into the system, the application generates a cookie containing user identification information, but fails to implement proper cryptographic signing or validation mechanisms to ensure the integrity of this data. The vulnerability allows attackers to modify the username value within the cookie and subsequently use this altered identifier to access other user accounts within the system. This type of flaw typically occurs when applications store sensitive information in cookies without proper integrity protection or when they fail to validate that the cookie contents correspond to legitimate user sessions. The operational impact extends beyond simple unauthorized access to encompass complete data compromise, as attackers can not only view sensitive information but also modify and delete data within the compromised accounts. This vulnerability directly relates to ATT&CK technique T1548.002 which covers bypassing user account control through the manipulation of session tokens or cookies.
The exploitation of this vulnerability requires minimal technical expertise and can be accomplished through standard web application penetration testing tools or manual cookie manipulation techniques. Attackers typically begin by capturing a valid session cookie from a legitimate user, then modify the username field within the cookie structure to target a different user account. The modified cookie can then be used to make authenticated requests to the application, effectively granting access to the target user's privileges and data. This vulnerability is particularly dangerous because it allows for privilege escalation and data manipulation across multiple user accounts without requiring knowledge of valid credentials or password guessing techniques. Organizations using Tru-Zone Nuke ET 3.x systems face significant risk of data breaches, unauthorized modifications, and potential complete system compromise if this vulnerability remains unpatched. The impact is further amplified by the fact that this vulnerability affects the core journal module, which typically contains sensitive user information, content management capabilities, and administrative functions. Mitigation strategies should include immediate patching of the affected software, implementation of proper cookie validation mechanisms, cryptographic signing of session tokens, and comprehensive security testing of all cookie-based authentication systems to prevent similar vulnerabilities from persisting in the application architecture.
The remediation of CVE-2008-2134 requires comprehensive application-level fixes that address both the immediate vulnerability and underlying architectural weaknesses. Organizations must implement robust session management practices that include cryptographic signing of all session cookies, regular session token regeneration, and validation of cookie contents against legitimate user data. The application should enforce server-side validation of all cookie parameters and reject any requests with modified or tampered session data. Additionally, implementing proper access control lists and role-based permissions will help contain the damage even if session manipulation occurs. Security frameworks such as OWASP Top Ten and NIST SP 800-53 provide specific guidance for addressing these types of authentication vulnerabilities through proper session management and input validation controls. The vulnerability also highlights the importance of regular security assessments and penetration testing to identify similar weaknesses in web application architectures, particularly in legacy systems that may not have been designed with modern security principles in mind. Organizations should consider implementing additional monitoring and logging mechanisms to detect suspicious cookie manipulation activities and establish incident response procedures specifically tailored to address session hijacking and authentication bypass attacks.