CVE-2025-9313 in mMedica
Summary
by MITRE • 10/28/2025
An unauthenticated user can connect to a publicly accessible database using arbitrary credentials. The system grants full access to the database by leveraging a previously authenticated connection through a "mmBackup" application. This flaw allows attackers to bypass authentication mechanisms and gain unauthorized access to database with sensitive data.
This issue affects Asseco mMedica in versions before 11.9.5.
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Analysis
by VulDB Data Team • 10/28/2025
The vulnerability described in CVE-2025-9313 represents a critical authentication bypass flaw within the Asseco mMedica healthcare information system. This weakness stems from improper credential validation mechanisms that allow unauthenticated attackers to establish database connections using arbitrary credentials. The flaw specifically affects versions prior to 11.9.5 and demonstrates a fundamental failure in the system's access control implementation. The vulnerability's severity is amplified by the fact that it operates without requiring any prior authentication, making it particularly dangerous in publicly accessible environments where database systems are exposed to external networks.
The technical exploitation of this vulnerability occurs through a sophisticated bypass mechanism that leverages an existing authenticated connection from the "mmBackup" application. This creates a dangerous privilege escalation path where an attacker can utilize legitimate backup application credentials to gain full database access. The system's failure to properly validate credentials and enforce proper access controls means that any user with knowledge of valid credential formats can potentially access sensitive healthcare data. This flaw essentially creates a backdoor that circumvents the normal authentication flow and allows unauthorized access to potentially patient records, medical histories, and other sensitive information typically protected by robust access controls.
The operational impact of CVE-2025-9313 extends far beyond simple unauthorized database access, as it represents a significant breach of data confidentiality and integrity within healthcare environments. Healthcare organizations that utilize Asseco mMedica systems are particularly vulnerable to this attack vector, as patient data is highly regulated and protected under various compliance frameworks including HIPAA and GDPR. The vulnerability creates a pathway for data exfiltration, potential data manipulation, and unauthorized system administration access. Attackers could potentially use this flaw to conduct long-term surveillance of database activities, escalate privileges further within the network, or establish persistent access points for future attacks. The implications are particularly severe given that healthcare data is often targeted by cybercriminals due to its high value on underground markets.
This vulnerability aligns with CWE-287 which addresses improper authentication issues, and demonstrates characteristics consistent with ATT&CK technique T1078 for valid accounts and T1046 for network service scanning. The flaw represents a classic case of insufficient authorization checks and improper session management, where the system fails to properly validate the legitimacy of connection requests. Organizations should immediately implement security patches to address this vulnerability and conduct comprehensive network assessments to identify any potential exploitation attempts. The recommended mitigation strategy includes applying the vendor-provided security update to version 11.9.5 or later, implementing network segmentation to isolate database systems, and strengthening monitoring controls to detect unusual database connection patterns. Additionally, organizations should review and enhance their database access controls, implement multi-factor authentication for database administrators, and establish regular security audits to prevent similar vulnerabilities from emerging in other system components.