CVE-2023-7191 in S-CMS
Summary
by MITRE • 12/31/2023
A vulnerability, which was classified as critical, was found in S-CMS up to 2.0_build20220529-20231006. This affects an unknown part of the file member/reg.php. The manipulation of the argument M_login/M_email leads to sql injection. The exploit has been disclosed to the public and may be used. The identifier VDB-249393 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
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Analysis
by VulDB Data Team • 01/22/2024
The vulnerability identified as CVE-2023-7191 represents a critical sql injection flaw within S-CMS version 2.0_build20220529-20231006, specifically affecting the member/reg.php file. This vulnerability stems from insufficient input validation when processing the M_login and M_email parameters, creating a pathway for malicious actors to manipulate database queries through crafted input. The flaw allows attackers to execute arbitrary sql commands against the underlying database system, potentially leading to complete system compromise and unauthorized data access. The vulnerability was assigned the VDB-249393 identifier by the vulnerability database and has been publicly disclosed, indicating that threat actors may already be exploiting this weakness in the wild.
The technical exploitation of this vulnerability follows standard sql injection attack patterns where the application fails to properly sanitize user inputs before incorporating them into database queries. When the M_login or M_email parameters are processed in member/reg.php, the application directly concatenates these values into sql statements without appropriate escaping or parameterization. This creates an environment where attackers can inject malicious sql payloads that bypass authentication mechanisms, extract sensitive data, modify database contents, or even escalate privileges within the application. The attack surface is particularly concerning as it targets the registration functionality, which typically handles user input and interacts directly with the database.
The operational impact of this vulnerability extends beyond simple data theft, as it can enable attackers to gain persistent access to the affected system. Successful exploitation could result in complete database compromise, allowing unauthorized users to view, modify, or delete sensitive information including user credentials, personal data, and potentially system configuration details. The vulnerability's critical classification indicates that it can be exploited without requiring specialized skills or access privileges, making it particularly dangerous for organizations running unpatched versions of S-CMS. The lack of vendor response to early disclosure attempts compounds the risk, leaving affected organizations without official patches or mitigation guidance during the active exploitation period.
Organizations affected by this vulnerability should immediately implement defensive measures including input validation controls, web application firewalls, and database query parameterization. The recommended mitigation strategies align with CWE-89 sql injection prevention guidelines and ATT&CK technique T1190 for exploitation through sql injection. Security teams should conduct immediate vulnerability assessments to identify systems running the affected S-CMS versions and implement network segmentation to limit potential lateral movement. Additionally, organizations should review their incident response procedures and consider implementing database activity monitoring to detect suspicious sql queries that may indicate exploitation attempts. The vulnerability demonstrates the critical importance of timely patch management and vendor communication in maintaining secure application environments.