CVE-2017-15539 in Blog
Summary
by MITRE
SQL Injection exists in zorovavi/blog through 2017-10-17 via the id parameter to recept.php.
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Analysis
by VulDB Data Team • 11/25/2019
The vulnerability identified as CVE-2017-15539 represents a critical SQL injection flaw discovered in the zorovavi/blog web application, which was active until at least October 17, 2017. This vulnerability resides within the recept.php script and specifically targets the id parameter, making it a classic example of an input validation weakness that allows attackers to manipulate database queries through maliciously crafted input. The flaw demonstrates poor security practices in parameter handling and database interaction within the application's codebase.
The technical execution of this SQL injection vulnerability occurs when an attacker submits a specially crafted id parameter value to the recept.php endpoint. This input is then directly incorporated into SQL query construction without proper sanitization or parameterization, allowing malicious SQL code to be executed within the database context. The vulnerability aligns with CWE-89, which categorizes SQL injection as a weakness where untrusted data is embedded into SQL commands without proper validation or escaping mechanisms. Attackers can leverage this flaw to extract sensitive data, modify database records, or potentially gain unauthorized administrative access to the underlying database system.
The operational impact of CVE-2017-15539 extends beyond simple data theft, as it provides attackers with a pathway to compromise the entire database infrastructure supporting the blog application. This vulnerability can be exploited through various attack vectors including manual testing, automated scanning tools, or integration with exploitation frameworks that target known SQL injection patterns. The risk assessment indicates that this vulnerability falls under the ATT&CK technique T1071.005 for application layer protocol usage and T1190 for exploitation of remote services, as it represents a remote code execution vector through database manipulation. Organizations utilizing this vulnerable software face significant exposure to data breaches, service disruption, and potential regulatory compliance violations.
Mitigation strategies for CVE-2017-15539 should prioritize immediate implementation of parameterized queries or prepared statements to eliminate direct input concatenation into SQL commands. The recommended approach aligns with the principle of least privilege and input validation practices outlined in security frameworks such as the OWASP Top Ten. Additionally, organizations should implement proper web application firewall rules to detect and block suspicious SQL injection patterns, while also conducting regular security assessments to identify similar vulnerabilities throughout the application codebase. The remediation process must include thorough code review to ensure all database interaction points properly sanitize user input and employ proper error handling to prevent information leakage that could aid further exploitation attempts.