CVE-2017-14345 in Blog
Summary
by MITRE
SQL Injection exists in tianchoy/blog through 2017-09-12 via the id parameter to view.php.
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Analysis
by VulDB Data Team • 11/15/2019
The vulnerability identified as CVE-2017-14345 represents a critical SQL injection flaw discovered in the tianchoy/blog content management system prior to the release date of September 12, 2017. This vulnerability specifically affects the view.php script where user input is improperly sanitized before being incorporated into database queries. The vulnerability occurs when the application accepts an 'id' parameter without adequate validation or sanitization, allowing malicious actors to inject arbitrary SQL commands through the parameter. This flaw falls under the Common Weakness Enumeration category CWE-89, which specifically addresses SQL injection vulnerabilities that occur when untrusted data is directly incorporated into SQL command structures without proper escaping or parameterization. The attack vector is particularly concerning as it allows remote code execution and unauthorized database access, potentially enabling attackers to extract sensitive information, modify database records, or even gain complete control over the underlying database system. The vulnerability demonstrates a fundamental failure in input validation and output encoding practices within the application's data handling mechanisms.
The operational impact of this SQL injection vulnerability extends beyond simple data theft to encompass complete system compromise and data destruction capabilities. An attacker exploiting this vulnerability could manipulate the database to retrieve administrative credentials, user personal information, or sensitive business data stored within the blog platform. The vulnerability's remote exploitability means that malicious actors do not require physical access to the system or insider knowledge to carry out attacks. According to the MITRE ATT&CK framework, this vulnerability maps to the technique T1071.005 for application layer protocol usage and T1046 for network service scanning, as attackers would typically probe for such vulnerabilities before executing more sophisticated attacks. The attack surface is further expanded by the fact that the vulnerability affects the core viewing functionality of the blog, meaning that any user interaction with the view.php script could potentially serve as an attack vector. This makes the vulnerability particularly dangerous in multi-user environments where the blog may host content from various contributors or serve as part of a larger web application ecosystem.
Mitigation strategies for CVE-2017-14345 must address both immediate remediation and long-term architectural improvements to prevent similar vulnerabilities from emerging. The primary fix involves implementing proper input validation and parameterized queries throughout the application's codebase, particularly in the view.php script where the vulnerability originates. Database administrators should enforce the principle of least privilege, ensuring that database accounts used by the web application have minimal required permissions to prevent unauthorized data manipulation. Additionally, implementing web application firewalls and intrusion detection systems can provide additional layers of protection by monitoring for suspicious SQL patterns in incoming requests. Organizations should also conduct comprehensive code reviews and security assessments to identify and remediate similar vulnerabilities across their entire software portfolio. The implementation of proper error handling mechanisms is crucial to prevent information disclosure that might occur during SQL injection attempts. Regular security updates and patch management processes should be established to ensure that known vulnerabilities are addressed promptly. From a compliance perspective, this vulnerability would likely violate standards such as the Payment Card Industry Data Security Standard (PCI DSS) and the General Data Protection Regulation (GDPR) if user data is compromised, making proper remediation not just a security necessity but a regulatory requirement. The vulnerability also highlights the importance of adopting secure coding practices and implementing automated security testing during the software development lifecycle to prevent such issues from reaching production environments.