CVE-2017-20136 in Classifieds Script
Summary
by MITRE • 07/16/2022
A vulnerability classified as critical has been found in Itech Classifieds Script 7.27. Affected is an unknown function of the file /subpage.php. The manipulation of the argument scat with the input =51' AND 4941=4941 AND 'hoCP'='hoCP leads to sql injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
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Analysis
by VulDB Data Team • 11/11/2022
This critical sql injection vulnerability exists in Itech Classifieds Script version 7.27 within the /subpage.php file where the scat parameter is improperly handled. The vulnerability stems from insufficient input validation and sanitization of user-supplied data, allowing malicious actors to inject arbitrary sql commands through the scat argument. The specific payload demonstrates classic sql injection techniques using boolean-based blind methods with the condition 4941=4941 that would always evaluate to true, enabling attackers to manipulate database queries and extract sensitive information from the backend database system. This vulnerability represents a direct violation of cwe-89 sql injection principles and aligns with attack techniques documented in the mitre attack framework under initial access and execution phases.
The remote exploitability of this vulnerability presents significant operational risks to affected systems, as attackers can leverage this weakness without requiring local system access or credentials. Successful exploitation could enable unauthorized data access, data modification, or complete database compromise, potentially exposing user information, classified listings, and other sensitive operational data. The vulnerability's classification as critical indicates the potential for widespread impact across multiple system components and the likelihood of automated exploitation given its public disclosure status. Organizations running this classifieds script version face immediate risk of data breaches and system compromise, with potential downstream impacts on business continuity and regulatory compliance.
Mitigation strategies should prioritize immediate patching of the affected Itech Classifieds Script version to address the sql injection vulnerability in the scat parameter handling. System administrators should implement proper input validation and sanitization measures, including parameterized queries or prepared statements to prevent sql injection attacks. Network segmentation and web application firewalls should be deployed to monitor and block suspicious sql injection attempts targeting the affected endpoint. Additionally, regular security assessments and vulnerability scanning should be conducted to identify similar weaknesses in other application components. The implementation of proper access controls and database privilege management can limit the potential impact of successful exploitation attempts, while comprehensive monitoring and logging should be established to detect unauthorized access attempts. Organizations should also consider implementing automated patch management processes to ensure timely remediation of discovered vulnerabilities and maintain compliance with industry security standards such as nist 800-53 and iso 27001 requirements for secure application development and deployment practices.