CVE-2003-1488 in Truegalerie
Summary
by MITRE
The (1) verif_admin.php and (2) check_admin.php scripts in Truegalerie 1.0 allow remote attackers to gain administrator access via a request to admin.php without the connect parameter and with the loggedin parameter set to any value, such as 1.
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Analysis
by VulDB Data Team • 07/13/2025
The vulnerability described in CVE-2003-1488 represents a critical authentication bypass flaw in the Truegalerie 1.0 web application gallery system. This issue stems from improper session management and authentication validation mechanisms within the application's administrative interface. The vulnerability specifically affects two key administrative scripts - verif_admin.php and check_admin.php - which are responsible for verifying administrator credentials and maintaining secure access to the backend management system. Attackers can exploit this weakness by crafting a malicious request to the admin.php endpoint without providing the required connect parameter while simultaneously setting the loggedin parameter to any arbitrary value, most commonly 1.
The technical implementation of this vulnerability demonstrates a fundamental flaw in the application's access control logic where the system fails to properly validate whether a user has actually authenticated before granting administrative privileges. This represents a classic case of insecure direct object reference vulnerability, where the application relies on client-supplied parameters to make critical access decisions without proper server-side validation. The flaw exists at the application logic level rather than being a configuration issue, making it particularly dangerous as it can be exploited without requiring any prior knowledge of valid credentials or session tokens. The vulnerability allows attackers to bypass the normal authentication flow entirely, effectively granting full administrative control over the gallery system.
From an operational impact perspective, this vulnerability poses severe security risks to organizations using Truegalerie 1.0, as it enables unauthorized individuals to gain complete administrative access to the web application. Once exploited, attackers can modify or delete gallery content, alter user permissions, access sensitive configuration data, and potentially use the compromised system as a platform for further attacks within the network. The vulnerability can be exploited remotely without any authentication requirements, making it particularly dangerous for publicly accessible web applications. This type of flaw directly violates the principle of least privilege and can lead to complete system compromise, data breaches, and potential regulatory compliance violations.
The security implications of this vulnerability align with CWE-287, which addresses improper authentication issues in software systems. This weakness creates an opportunity for attackers to perform privilege escalation attacks, which are categorized under the ATT&CK technique T1078 - Valid Accounts. Organizations should implement immediate mitigations including patching the application to properly validate authentication parameters, implementing proper session management controls, and ensuring that all administrative endpoints require proper authentication tokens before granting access. Additionally, network segmentation and firewall rules should be configured to restrict access to administrative interfaces to trusted IP addresses only. Regular security assessments and code reviews should be conducted to identify similar authentication bypass vulnerabilities in other web applications, as this type of flaw is commonly found in legacy systems that have not been properly updated or maintained.