CVE-2021-37477 in NavigateCMS
Summary
by MITRE • 07/26/2021
In NavigateCMS version 2.9.4 and below, function in `structure.php` is vulnerable to sql injection on parameter `children_order`, which results in arbitrary sql query execution in the backend database.
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Analysis
by VulDB Data Team • 08/05/2021
The vulnerability identified as CVE-2021-37477 represents a critical sql injection flaw within NavigateCMS version 2.9.4 and earlier releases. This weakness specifically manifests in the structure.php file where the parameter children_order is processed without adequate input validation or sanitization measures. The vulnerability falls under the category of CWE-89 sql injection as defined by the Common Weakness Enumeration framework, which classifies this as a direct sql injection attack vector that allows malicious actors to manipulate database queries through user-controllable inputs.
The technical implementation of this vulnerability occurs when the application processes the children_order parameter within the structure.php file. When an attacker submits malicious input through this parameter, the application fails to properly escape or parameterize the input before incorporating it into sql commands executed against the backend database. This lack of proper input handling creates an environment where arbitrary sql commands can be executed with the privileges of the web application's database user. The attack vector specifically targets the sql injection point in the structure.php file, allowing attackers to manipulate the application's database operations through crafted input values.
The operational impact of this vulnerability extends beyond simple data theft or modification. Attackers can leverage this sql injection flaw to execute unauthorized database operations including but not limited to data extraction, data modification, privilege escalation, and potentially complete database compromise. The vulnerability enables attackers to bypass authentication mechanisms and gain unauthorized access to sensitive information stored within the application's database. This includes user credentials, configuration data, and potentially sensitive business information that the cms stores. The severity of this vulnerability is amplified by the fact that it affects versions 2.9.4 and below, indicating that this is a persistent flaw that has not been addressed in the affected releases.
Organizations utilizing NavigateCMS versions 2.9.4 or earlier should immediately implement mitigations to address this vulnerability. The primary remediation strategy involves upgrading to a patched version of NavigateCMS where the sql injection vulnerability has been resolved. Additionally, implementing proper input validation and parameterization techniques in the structure.php file will prevent malicious input from being processed as sql commands. The mitigation approach should align with the ATT&CK framework's defense-in-depth strategies, particularly focusing on input validation and credential protection. Security measures should include web application firewalls that can detect and block sql injection attempts, database activity monitoring, and regular security assessments. Organizations should also implement principle of least privilege for database accounts used by the cms and ensure that database connections are properly secured to minimize the potential impact of successful exploitation attempts.