MantisBT is an open source bug tracking tool often used by developers and organizations to keep track of software defects. It is utilized by both small teams and large corporations due to its flexible design. MantisBT provides a web interface for users to report issues that can be accessed through various devices. Its integration with source control, time tracking, and project management tools makes it attractive for continuous development environments. The software supports multiple projects, dozens of user reporting options, and a comprehensive plugin system for extending its capabilities. MantisBT is widely used due to its simplicity, accessibility, and support for various database backends.
The authentication bypass vulnerability in MantisBT could allow unauthorized users to exploit the SOAP API due to improper type checking. Attackers can perform system-level functions using a crafted SOAP envelope without the correct password. This vulnerability can compromise user accounts, unauthorized access to sensitive functions, and potentially lead to full system compromise. Since it exploits type confusion in the password parameter verification, attackers can trick the API into granting access. This vulnerability impacts the integrity and confidentiality of data within the application.
Technical details reveal that the vulnerability can be exploited by sending a SOAP request to the vulnerable endpoint with a specific payload. The vulnerable endpoint is "mantisconnect.php" within MantisBT's SOAP API. Attackers can input a crafted "mc_login" request with a password type mismatch (incorrect conversion), allowing unauthorized login. This vulnerability primarily exploits the server-side application logic flaw that fails to validate authentication parameters adequately. End-users authentication can be bypassed without needing an actual password, provided that the attacker knows the victim's username, simplifying unauthorized access.
Exploiting this vulnerability could allow attackers to impact various systems using MantisBT. Possible effects include unauthorized access to user accounts and potential control over application UI and functions. Sensitive API functionalities could be misused, allowing for data extraction, manipulation, or further system compromises. Undetected, this vulnerability could undermine the entire application's security architecture, leading to a variety of potential legal and financial damages due to data loss or exposure. Administrative functions could be particularly targeted, leading to widespread loss of system integrity
REFERENCES
- Update MantisBT to version 2.28.1 or later to mitigate this vulnerability.
- Consider disabling the SOAP API if it is not necessary for operations, reducing risk exposure.
- Implement additional access controls and logging to detect unauthorized access attempts promptly.
- Ensure all user passwords conform to complexity requirements to minimize successful unauthorized logins.
- Regularly audit system and application logs for unusual activities related to API accesses.
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