Quantum Secular Labs / Blog / Advisories
CVE-2017-11614: Medhost Connex: Hard-coded credentials or backdoor
CVE-2017-11614 is rated critical with a CVSS v3.0 base score of 9.8 and affects Medhost Connex. Per its scoring, it can be exploited over the network, without authentication, without any user interaction. The scored impact on confidentiality, integrity and availability is the highest available.
Vulnerability description
MEDHOST Connex contains hard-coded credentials that are used for customer database access. An attacker with knowledge of the hard-coded credentials and the ability to communicate directly with the database may be able to obtain or modify sensitive patient and financial information. Connex utilizes an IBM i DB2 user account for database access. The account name is HMSCXPDN. Its password is hard-coded in multiple places in the application. Customers do not have the option to change this password. The account has elevated DB2 roles, and can access all objects or database tables on the customer DB2 database. This account can access data through ODBC, FTP, and TELNET. Customers without Connex installed are still vulnerable because the MEDHOST setup program creates this account.
Severity breakdown
CVSS v3.0 9.8: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack vector: Network. Exploitable remotely over the network, with no need for local or physical access.
- Attack complexity: Low. No special conditions; the attack can be repeated reliably.
- Privileges required: None. No account or prior access is needed.
- User interaction: None. No action from any user is needed.
- Scope: Unchanged. Impact stays within the vulnerable component.
- Confidentiality impact: High. Total loss of confidentiality; sensitive data can be fully disclosed.
- Integrity impact: High. Total loss of integrity; data or system state can be fully modified.
- Availability impact: High. Total loss of availability; the component can be shut down.
Underlying weakness
CWE-798: Use of Hard-coded Credentials
The product contains hard-coded credentials, such as a password or cryptographic key.
Affected products
- Medhost Connex: all versions listed by NVD