CVE-2009-1945 in webCal
Summary
by MITRE
SQL injection vulnerability in webCal3_detail.asp in WebCal 3.04 allows remote attackers to execute arbitrary SQL commands via the event_id parameter.
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Analysis
by VulDB Data Team • 11/30/2024
The vulnerability described in CVE-2009-1945 represents a critical SQL injection flaw within the WebCal 3.04 calendar application's webCal3_detail.asp component. This issue arises from insufficient input validation and sanitization of user-supplied data, specifically the event_id parameter that is processed without proper security measures. The flaw exists in the application's database interaction logic where user-provided identifiers are directly concatenated into SQL query strings without appropriate escaping or parameterization techniques, creating an avenue for malicious exploitation.
The technical implementation of this vulnerability stems from the application's failure to properly handle user input within its SQL query construction process. When a user submits an event_id parameter through the web interface, the webCal3_detail.asp script processes this input directly within database queries without employing prepared statements or proper input sanitization mechanisms. This allows attackers to inject malicious SQL code that gets executed within the database context, potentially enabling full database compromise. The vulnerability falls under CWE-89 which specifically addresses SQL injection flaws where untrusted data is incorporated into SQL commands without proper validation or escaping.
The operational impact of this vulnerability extends far beyond simple data theft, as it provides attackers with the capability to execute arbitrary SQL commands on the underlying database server. Successful exploitation could result in unauthorized data access, data modification, or complete database destruction. Attackers might leverage this vulnerability to extract sensitive information such as user credentials, personal calendar entries, and other confidential data stored within the WebCal application. The remote nature of this attack vector means that exploitation can occur from any location without requiring physical access to the system, making it particularly dangerous for web-based applications.
Organizations utilizing WebCal 3.04 should implement immediate mitigations including input validation and parameterized queries to address this vulnerability. The recommended approach involves implementing proper input sanitization techniques that filter or escape special characters that could be used in SQL injection attacks. Additionally, implementing prepared statements or stored procedures would prevent the direct concatenation of user input into SQL queries. From a defensive perspective, this vulnerability aligns with ATT&CK technique T1190 which describes exploitation of vulnerabilities in web applications, specifically targeting SQL injection as a means of achieving unauthorized database access. Network segmentation and web application firewalls can provide additional layers of protection while more permanent fixes involve upgrading to patched versions of the WebCal application or implementing proper code review processes to prevent similar issues in future development cycles.