CVE-2025-40655: DM Corporative CMS SQLi Vulnerability

CVE-2025-40655 Overview

A critical SQL injection vulnerability has been discovered in DM Corporative CMS, a content management system developed by ACC. This vulnerability allows unauthenticated remote attackers to manipulate database queries through the name parameter in the /antcatalogue.asp endpoint. Successful exploitation enables attackers to retrieve, create, update, and delete database contents, potentially compromising the entire system's data integrity and confidentiality.

Critical Impact

Unauthenticated attackers can fully compromise database contents through SQL injection, enabling data theft, modification, or destruction of business-critical information stored in DM Corporative CMS deployments.

Affected Products

• DM Corporative CMS (all versions)
• ACC DM Corporative CMS web application
• Systems running /antcatalogue.asp endpoint

Discovery Timeline

• 2025-06-10 - CVE-2025-40655 published to NVD
• 2025-10-23 - Last updated in NVD database

Technical Details for CVE-2025-40655

Vulnerability Analysis

This SQL injection vulnerability (CWE-89) exists in the DM Corporative CMS web application, specifically within the /antcatalogue.asp endpoint. The application fails to properly sanitize user-supplied input in the name parameter before incorporating it into SQL queries. This allows attackers to inject arbitrary SQL commands that are executed directly against the backend database.

The vulnerability is accessible over the network without any authentication requirements and does not require user interaction. Attackers can craft malicious requests containing SQL injection payloads to extract sensitive information, modify existing records, insert new data, or delete database contents entirely.

Root Cause

The root cause of this vulnerability is improper input validation in the /antcatalogue.asp file. The name parameter is directly concatenated into SQL queries without proper sanitization or parameterization. This classic SQL injection pattern occurs when developers trust user input and fail to implement prepared statements or parameterized queries, allowing malicious SQL syntax to be interpreted as part of the database query rather than as data.

Attack Vector

The attack vector is network-based, requiring no authentication or user interaction. An attacker can send specially crafted HTTP requests to the /antcatalogue.asp endpoint with malicious SQL payloads in the name parameter. The vulnerability allows for various SQL injection techniques including:

• Union-based injection - extracting data from other database tables
• Boolean-based blind injection - inferring data through true/false responses
• Time-based blind injection - extracting data via response timing differences
• Stacked queries - executing multiple SQL statements including INSERT, UPDATE, and DELETE operations

The vulnerability mechanism exists in the ASP-based endpoint where the name parameter value is incorporated into database queries without proper sanitization. When processing catalogue requests, the application constructs SQL statements using the raw user input, allowing attackers to break out of the intended query structure and execute arbitrary database commands. For detailed technical information, refer to the INCIBE Security Notice.

Detection Methods for CVE-2025-40655

Indicators of Compromise

• Unusual or malformed requests to /antcatalogue.asp containing SQL syntax such as single quotes, UNION statements, or comment sequences (--, /**/)
• Database error messages exposed in HTTP responses indicating SQL parsing failures
• Abnormal database query patterns including unexpected SELECT, INSERT, UPDATE, or DELETE operations
• Evidence of data exfiltration or unauthorized database modifications in audit logs

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block SQL injection patterns targeting the name parameter
• Implement intrusion detection signatures for common SQL injection keywords in requests to /antcatalogue.asp
• Monitor application logs for requests containing suspicious characters such as ', ", ;, --, UNION, SELECT, INSERT, UPDATE, or DELETE
• Review database audit logs for unauthorized query execution or abnormal data access patterns

Monitoring Recommendations

• Enable verbose logging on web servers to capture full request parameters for forensic analysis
• Configure database auditing to track all queries executed against sensitive tables
• Set up alerts for failed SQL queries or syntax errors that may indicate exploitation attempts
• Monitor for unusual outbound data transfers that could indicate data exfiltration

How to Mitigate CVE-2025-40655

Immediate Actions Required

• Restrict access to the /antcatalogue.asp endpoint via network-level controls or authentication requirements
• Deploy Web Application Firewall rules to filter malicious SQL injection payloads
• Consider taking the affected endpoint offline until a vendor patch is available
• Audit database contents to identify any unauthorized modifications or data theft

Patch Information

No official vendor patch has been announced at the time of this publication. Organizations using DM Corporative CMS should monitor the INCIBE Security Notice for updates and contact ACC directly for remediation guidance.

Workarounds

• Implement input validation at the application level to reject SQL metacharacters in the name parameter
• Deploy a reverse proxy or WAF with SQL injection filtering capabilities in front of the application
• Restrict database user permissions to limit the impact of successful exploitation (principle of least privilege)
• Isolate the DM Corporative CMS database from other critical systems to contain potential breaches

# Example WAF rule for ModSecurity to block SQL injection in name parameter
SecRule ARGS:name "@detectSQLi" \
    "id:100001,\
    phase:2,\
    deny,\
    status:403,\
    msg:'SQL Injection attempt detected in name parameter',\
    log,\
    auditlog"