CVE-2019-25690: Marmotech Kados SQL Injection Vulnerability

CVE-2019-25690 Overview

CVE-2019-25690 is an SQL injection vulnerability in Kados R10 GreenBee that allows attackers to manipulate database queries by injecting malicious SQL code through the mng_profile_id parameter. Attackers can send crafted requests with malicious SQL payloads in this parameter to extract sensitive database information, potentially compromising the entire database backend.

Critical Impact

Successful exploitation enables attackers to extract sensitive database information, potentially including user credentials, application data, and configuration details through unauthenticated network-based attacks.

Affected Products

• Marmotech Kados R10 GreenBee
• marmotech kados

Discovery Timeline

• 2026-04-05 - CVE CVE-2019-25690 published to NVD
• 2026-04-07 - Last updated in NVD database

Technical Details for CVE-2019-25690

Vulnerability Analysis

This SQL injection vulnerability (CWE-89) exists in the Kados R10 GreenBee application where user-supplied input in the mng_profile_id parameter is not properly sanitized before being incorporated into SQL queries. The vulnerability allows remote, unauthenticated attackers to manipulate database queries by injecting arbitrary SQL syntax. When exploited, an attacker can bypass authentication mechanisms, extract sensitive data from the database, modify or delete records, and potentially execute administrative operations on the database server.

The attack requires no special privileges or user interaction, making it particularly dangerous for internet-facing deployments. The impact primarily affects data confidentiality with high severity, along with limited impact to data integrity.

Root Cause

The root cause of CVE-2019-25690 is improper input validation and sanitization of the mng_profile_id parameter. The application fails to use parameterized queries or prepared statements when constructing SQL queries, instead directly concatenating user-supplied input into the query string. This allows attackers to break out of the intended query context and inject arbitrary SQL commands that the database server will execute.

Attack Vector

The vulnerability is exploitable over the network without requiring authentication. An attacker can craft malicious HTTP requests containing SQL injection payloads in the mng_profile_id parameter. By manipulating this parameter with specially crafted SQL syntax, attackers can alter the logic of database queries to extract data, enumerate database structures, or perform other unauthorized database operations.

The exploitation mechanism involves sending requests where the mng_profile_id parameter contains SQL metacharacters and commands that terminate the original query and append malicious statements. Common techniques include UNION-based injection to retrieve data from other tables, Boolean-based blind injection to infer data character by character, and time-based blind injection when no direct output is visible.

For detailed technical information and proof-of-concept examples, refer to the Exploit-DB #46505 entry and the VulnCheck Advisory on Kados SQL Injection.

Detection Methods for CVE-2019-25690

Indicators of Compromise

• HTTP requests containing SQL keywords (UNION, SELECT, INSERT, UPDATE, DELETE) in the mng_profile_id parameter
• Database error messages appearing in application responses indicating malformed queries
• Unusual database query patterns or increased database load from web application accounts
• Access logs showing requests with encoded SQL injection payloads targeting profile management endpoints

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block SQL injection patterns in the mng_profile_id parameter
• Implement database activity monitoring to identify anomalous query patterns and unauthorized data access attempts
• Configure application logging to capture all requests to endpoints processing the mng_profile_id parameter
• Use intrusion detection systems with SQL injection signature rules to alert on exploitation attempts

Monitoring Recommendations

• Monitor web server access logs for requests containing SQL metacharacters such as single quotes, semicolons, and comment sequences
• Set up alerts for database authentication failures and privilege escalation attempts
• Review database audit logs for queries accessing sensitive tables outside normal application patterns
• Implement real-time alerting for WAF rule triggers related to SQL injection attacks

How to Mitigate CVE-2019-25690

Immediate Actions Required

• Apply vendor patches or updates if available from Marmotech for the Kados R10 GreenBee application
• Implement input validation to restrict the mng_profile_id parameter to expected numeric or alphanumeric formats only
• Deploy a Web Application Firewall with SQL injection protection rules as an interim measure
• Restrict network access to the vulnerable application to trusted IP addresses or internal networks only

Patch Information

Organizations should check the Kados Official Website and the SourceForge Project Kados for the latest security updates and patched versions. Review the VulnCheck Advisory on Kados SQL Injection for detailed remediation guidance.

Workarounds

• Implement strict input validation using allowlists to ensure the mng_profile_id parameter only accepts expected values
• Use parameterized queries or prepared statements in the application code if source modifications are possible
• Deploy network segmentation to isolate the vulnerable application from sensitive database resources
• Enable database user privilege restrictions to limit the impact of successful SQL injection attacks

# Example WAF rule configuration for ModSecurity
SecRule ARGS:mng_profile_id "@detectSQLi" \
    "id:1001,\
    phase:2,\
    deny,\
    status:403,\
    log,\
    msg:'SQL Injection detected in mng_profile_id parameter - CVE-2019-25690'"