CVE-2008-2971 in CiBlog
Summary
by MITRE
SQL injection vulnerability in links-extern.php in CiBlog 3.1 allows remote attackers to execute arbitrary SQL commands via the id parameter.
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Analysis
by VulDB Data Team • 10/29/2024
The vulnerability identified as CVE-2008-2971 represents a critical sql injection flaw within the CiBlog 3.1 content management system, specifically affecting the links-extern.php script. This vulnerability resides in the handling of user-supplied input through the id parameter, which is processed without adequate sanitization or validation mechanisms. The flaw allows remote attackers to manipulate the application's database interactions by injecting malicious sql commands through the vulnerable parameter, potentially leading to unauthorized data access, modification, or deletion. The vulnerability's impact is particularly severe as it affects a core component of the blogging platform's external link management functionality.
The technical implementation of this vulnerability stems from improper input validation and sanitization practices within the CiBlog application. When the id parameter is passed to links-extern.php, the application directly incorporates this value into sql query construction without appropriate escaping or parameterization. This creates an exploitable condition where an attacker can inject malicious sql code that gets executed within the database context. The vulnerability aligns with CWE-89, which specifically addresses sql injection flaws, and represents a classic example of unsafe sql query construction where user input is concatenated directly into sql statements. The attack vector is remote and requires no authentication, making it particularly dangerous for publicly accessible web applications.
The operational impact of this vulnerability extends beyond simple data theft, as it provides attackers with comprehensive database access capabilities. Successful exploitation could enable attackers to extract sensitive information including user credentials, blog content, and potentially system configuration details. The vulnerability also allows for data manipulation operations such as updating or deleting records within the database, which could compromise the integrity of the entire blog platform. Additionally, attackers could leverage this vulnerability to establish persistent access by creating backdoor accounts or modifying application logic. The lack of input validation means that even basic sql injection payloads could be sufficient to achieve complete database compromise, making this vulnerability particularly attractive to malicious actors. Organizations using CiBlog 3.1 are at significant risk of data breaches and system compromise, especially when the application is deployed in production environments without proper security hardening.
Mitigation strategies for this vulnerability require immediate attention and implementation of multiple defensive measures. The primary remediation involves proper input validation and parameterized queries to prevent sql injection attacks. Applications should implement prepared statements or parameterized queries for all database interactions, ensuring that user input is properly escaped or treated as literal values rather than executable code. Additionally, implementing proper input sanitization routines that filter or reject suspicious characters and patterns can significantly reduce exploitation risk. Organizations should also consider implementing web application firewalls to detect and block common sql injection attack patterns targeting this specific vulnerability. The vulnerability's classification under CWE-89 and its alignment with ATT&CK technique T1190 for sql injection provides clear guidance for security teams to implement appropriate defensive controls. Regular security assessments and code reviews should be conducted to identify similar vulnerabilities in other components of the application. Patch management procedures should be established to ensure timely deployment of security updates and fixes for known vulnerabilities in third-party software components.