CVE-2008-2670 in Isblog
Summary
by MITRE
Multiple SQL injection vulnerabilities in index.php in Insanely Simple Blog 0.5 allow remote attackers to execute arbitrary SQL commands via (1) the id parameter, or (2) the term parameter in a search action. NOTE: the current_subsection parameter is already covered by CVE-2007-3889.
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Analysis
by VulDB Data Team • 10/27/2024
The vulnerability described in CVE-2008-2670 represents a critical SQL injection flaw affecting Insanely Simple Blog version 0.5, specifically within the index.php file. This vulnerability falls under the Common Weakness Enumeration category CWE-89 which defines SQL injection as the insertion of malicious SQL code into database queries through input fields. The flaw enables remote attackers to manipulate the application's database interactions without authentication, potentially leading to complete database compromise and unauthorized data access.
The technical implementation of this vulnerability occurs through two distinct parameter manipulation vectors within the application's search functionality. Attackers can exploit the vulnerability by crafting malicious input through either the id parameter or the term parameter during search operations. When these parameters are processed by the application's backend database queries, the unvalidated input gets directly concatenated into SQL statements, creating opportunities for attackers to inject malicious SQL commands. The vulnerability specifically targets the search action functionality, making it particularly dangerous as it leverages legitimate application features to execute unauthorized database operations.
The operational impact of this vulnerability extends beyond simple data theft, as it provides attackers with the capability to execute arbitrary SQL commands on the affected database server. This could enable attackers to extract sensitive information, modify or delete database records, create new database users, or even escalate privileges within the database environment. The remote nature of the attack means that exploitation can occur from anywhere on the internet without requiring physical access to the server or knowledge of the internal network structure. The vulnerability affects the core blogging functionality and could potentially lead to complete application compromise if the database contains sensitive user information or system configuration data.
Security practitioners should implement multiple layers of defense to mitigate this vulnerability, starting with immediate patching of the Insanely Simple Blog application to version 0.5.1 or later, which contains the necessary fixes for the SQL injection flaws. Input validation and parameterized queries should be implemented throughout the application to prevent similar issues in the future. The application should be configured with the principle of least privilege, ensuring database accounts used by the application have minimal necessary permissions. Additionally, network-based intrusion detection systems should be configured to monitor for patterns associated with SQL injection attempts, and web application firewalls should be deployed to filter malicious SQL injection payloads. Organizations should also conduct regular security assessments and vulnerability scanning to identify similar issues in other applications within their infrastructure, as this vulnerability type remains prevalent in many web applications and aligns with ATT&CK technique T1190 for exploiting vulnerabilities in web applications.