CVE-2006-3094 in Calendarix Basic
Summary
by MITRE
Multiple SQL injection vulnerabilities in Calendarix Basic 0.7.20060401 and earlier, with magic_quotes_gpc disabled, allow remote attackers to execute arbitrary SQL commands via the id parameter in (1) cal_event.php and (2) cal_popup.php.
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Analysis
by VulDB Data Team • 07/30/2022
The vulnerability identified as CVE-2006-3094 represents a critical security flaw in Calendarix Basic version 0.7.20060401 and earlier installations. This issue manifests as multiple SQL injection vulnerabilities that specifically target the application's handling of user input through the id parameter in two key files. The vulnerability's severity is amplified by the absence of proper input sanitization mechanisms, creating an exploitable condition that directly compromises the underlying database system's integrity. Calendarix Basic is a web-based calendar application that stores event data in a database, making it susceptible to unauthorized data access and manipulation when proper security controls are absent.
The technical flaw exploited in this vulnerability stems from the application's failure to properly sanitize or escape user-supplied input before incorporating it into SQL query constructs. When magic_quotes_gpc is disabled on the web server, the application becomes particularly vulnerable because the built-in PHP protection mechanism that automatically escapes certain characters in GET, POST, and COOKIE data is not active. Attackers can manipulate the id parameter in cal_event.php and cal_popup.php by injecting malicious SQL code that bypasses normal input validation. This allows unauthorized users to execute arbitrary SQL commands against the database, potentially gaining access to sensitive information, modifying or deleting data, or even escalating privileges within the database environment.
The operational impact of this vulnerability extends beyond simple data theft or corruption, as it enables attackers to potentially gain complete control over the application's database backend. Remote attackers can exploit this weakness to perform unauthorized database operations including but not limited to data extraction, modification, or deletion of calendar events and associated user information. The vulnerability affects the entire calendar application functionality, as attackers can manipulate the event display and management features through crafted SQL injection payloads. This creates a persistent security risk that remains active as long as the vulnerable version of Calendarix Basic is deployed without proper input validation or patching.
Organizations utilizing vulnerable versions of Calendarix Basic should implement immediate mitigations including upgrading to a patched version of the application, enabling magic_quotes_gpc if possible, or implementing proper input validation and parameterized queries. The vulnerability aligns with CWE-89 which specifically addresses SQL injection flaws, and demonstrates characteristics consistent with attack patterns documented in the MITRE ATT&CK framework under the T1190 technique for exploitation of remote services. Security administrators should also consider implementing web application firewalls and database activity monitoring to detect and prevent exploitation attempts. The vulnerability underscores the critical importance of proper input validation and the dangers of relying on deprecated or insecure application configurations in web-based systems.