Summary
MCMS versions 6.1.1 through 6.2.1 contain a SQL injection vulnerability in the PageAction.verify endpoint. An attacker who can reach the endpoint and supply crafted request parameters may influence database queries, potentially exposing or modifying data depending on database permissions.
Affected context
The vulnerability occurs in MCMS deployments using the affected versions and exposing the GET /ms/mdiy/page/verify.do endpoint. Risk depends on whether the endpoint is reachable by an attacker, which request parameters reach database query construction, and the privileges available to the application's database account.
Exploit preconditions
- Attack surface: HTTP GET request to
/ms/mdiy/page/verify.do - Required access: Network reachability to the MCMS application; authentication requirements depend on deployment configuration
- Trigger point: Processing of attacker-controlled request input by the
PageAction.verifyendpoint - Why exploitation is possible: Input may be incorporated into a database query without sufficiently strict parameterization or validation
Why this happens
The underlying bug is an SQL injection condition in which externally controlled input can affect the structure or execution of a database query. This maps to CWE-89: Improper Neutralization of Special Elements used in an SQL Command, commonly caused by constructing queries through string concatenation or otherwise treating untrusted input as executable SQL syntax.
Potential impact
- An attacker may read sensitive database records
- An attacker could alter or delete application data
- Database credentials or stored secrets may be exposed
- Application authentication or authorization data may be tampered with
- The application or connected systems may be impacted if the database account has excessive privileges
General mitigation guidance
Mitigation generally focuses on ensuring that untrusted request data cannot control SQL syntax or query structure.
Common defensive patterns include:
- Using parameterized queries or prepared statements for all database operations
- Applying allowlisted input validation that matches the expected data type and format
- Avoiding dynamic SQL construction from request parameters
- Restricting database accounts to the minimum permissions required by the application
- Separating read and write database identities where practical
- Limiting endpoint exposure through authentication, authorization, and network policy
- Handling database errors without revealing query details or sensitive implementation information
How teams detect issues like this
Organizations can look for SQL injection risks through:
- Static analysis rules identifying string concatenation or interpolation in SQL construction
- Code review checks for database calls that do not use parameter binding
- Dynamic testing with benign invalid input and automated injection test cases in controlled environments
- Web application firewall or API gateway policies that detect suspicious query-oriented input patterns
- Database and application logs showing unusual query errors, access patterns, or unexpected data-volume changes
Neutral automated security review tools may help identify vulnerable query-building patterns, but findings should be validated against application behavior.
