CVE-2006-6720 in Azucar CMS
Summary
by MITRE
PHP remote file inclusion vulnerability in admin/index_sitios.php in Azucar CMS 1.3 allows remote attackers to execute arbitrary PHP code via a URL in the _VIEW parameter.
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Analysis
by VulDB Data Team • 12/21/2024
The vulnerability identified as CVE-2006-6720 represents a critical remote file inclusion flaw within the Azucar CMS 1.3 administration interface. This issue resides in the admin/index_sitios.php script where improper input validation allows attackers to inject malicious URLs through the _VIEW parameter. The flaw demonstrates characteristics consistent with CWE-98, which describes improper file inclusion vulnerabilities that occur when applications include files based on user-supplied input without adequate sanitization or validation. The vulnerability exists due to the application's failure to properly validate or sanitize the _VIEW parameter before using it in file inclusion operations, creating an attack surface that enables arbitrary code execution.
The technical exploitation of this vulnerability requires an attacker to craft a malicious URL that gets passed through the _VIEW parameter to the vulnerable script. When the application processes this input, it attempts to include the specified remote file, effectively allowing the attacker to execute arbitrary PHP code on the target system. This type of vulnerability falls under the ATT&CK framework category of T1505.003 - Server Software Component, specifically targeting web application components that handle file inclusion operations. The vulnerability is particularly dangerous because it enables attackers to execute code with the privileges of the web server process, potentially leading to complete system compromise and persistence within the target environment.
The operational impact of this vulnerability extends beyond simple code execution to encompass significant security implications for organizations using Azucar CMS 1.3. Attackers can leverage this flaw to upload backdoors, establish persistent access, and perform reconnaissance activities within the compromised environment. The vulnerability affects the integrity and confidentiality of the web application, as unauthorized parties can manipulate the system to gain administrative control. Additionally, the remote nature of the attack means that exploitation can occur from any location without requiring physical access to the target system, making it particularly attractive to threat actors seeking scalable compromise opportunities.
Mitigation strategies for CVE-2006-6720 should focus on immediate patching of the affected Azucar CMS 1.3 installation, as this represents the most effective solution to address the vulnerability. Organizations should implement input validation and sanitization measures to prevent malicious URLs from being processed through the _VIEW parameter. The principle of least privilege should be enforced by ensuring that web server processes operate with minimal required permissions, limiting potential damage from successful exploitation. Network-level protections such as web application firewalls and intrusion prevention systems can provide additional layers of defense against exploitation attempts. Regular security assessments and vulnerability scanning should be conducted to identify similar issues in other web applications and ensure comprehensive protection against remote file inclusion attacks. Implementation of proper parameter validation and secure coding practices, as recommended by OWASP and other security organizations, will help prevent similar vulnerabilities from occurring in future development cycles.