CVE-2008-1784 in Topsites
Summary
by MITRE
Prozilla Topsites 1.0 allows remote attackers to perform administrative actions via a direct request to (1) addu.php, (2) editu.php, and (3) uidx.php in siteadmin/.
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Analysis
by VulDB Data Team • 10/20/2024
The vulnerability identified as CVE-2008-1784 affects Prozilla Topsites version 1.0 and represents a critical authorization flaw that enables remote attackers to execute administrative functions without proper authentication. This issue stems from inadequate access control mechanisms within the web application's administrative interface, specifically in the siteadmin/ directory where three key files are exposed to unauthorized access. The affected files include addu.php for user addition, editu.php for user modification, and uidx.php for user index operations, all of which can be directly accessed by remote attackers to manipulate the system's administrative functions.
This vulnerability directly maps to CWE-285, which describes improper authorization within software systems, and aligns with ATT&CK technique T1078.004 for valid accounts and T1566.001 for spearphishing attachments, as the flaw allows attackers to escalate privileges through direct exploitation of administrative endpoints. The technical implementation flaw occurs because the application fails to verify user authentication status before executing administrative operations, creating a path for unauthorized individuals to gain control over user management functions. The absence of proper session validation and access control checks in these PHP scripts allows any remote user to perform actions such as adding new administrative users, modifying existing user accounts, or deleting user entries.
The operational impact of this vulnerability is severe as it provides attackers with complete control over the user management subsystem of the Prozilla Topsites application. An attacker could leverage this vulnerability to create persistent backdoor accounts, modify existing user credentials, or completely remove user access, potentially leading to full system compromise. The vulnerability affects the integrity and availability of the application's user database, which could result in unauthorized access to protected resources and disruption of legitimate user services. Additionally, the exposure of administrative functions increases the risk of data breaches and unauthorized modifications to the website's content and structure.
Mitigation strategies for this vulnerability should focus on implementing proper authentication and authorization controls within the affected PHP files. The most effective immediate solution involves adding robust session validation checks and access control mechanisms to ensure that only authenticated administrative users can access the siteadmin/ directory and its contained files. Security patches should enforce proper user authentication before executing any administrative functions, implementing mechanisms such as session token verification and role-based access controls. Organizations should also conduct regular security assessments to identify similar authorization flaws in other parts of their web applications, ensuring that administrative endpoints are properly protected through the implementation of principle of least privilege and proper input validation. The remediation process should include reviewing all administrative interfaces for similar vulnerabilities and implementing comprehensive logging of administrative activities to detect unauthorized access attempts.