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[R1] Open Dental Multiple Vulnerabilities

Critical

Synopsis

CVE-2018-15717: Weak Password Hashing

Open Dental stores credentials in an insecure manner.

The application stores credentials in the "userod" table with the username in plaintext and the password hash stored as a base64 encoded MD5 hash, which is a known insecure hashing method. Furthermore, no salt is used with the hash.

CVE-2018-15718: User Table Information Disclosure

Open Dental transmits credential information in an insecure manner.

When the application launches and a user is presented with a log-in prompt, the application sends a request to the database for all user information. This includes usernames, privilege levels, password hashes, etc. This unnecessarily exposes user information.

CVE-2018-15719: Default Database Credentials

Open Dental contains a security bypass due to insecure installation defaults.

Upon installation of the application, the mysql database created has the default credentials of "root" with a blank password. This allows anyone on the network with access to the server to access all database information (including confidential patient information and PII).

CVE-2016-6531 was previously assigned to this issue. However, Open Dental disputed the vulnerability. According to the release notes of 18.4, Open Dental will now "prompt to create a username and password for MySQL."

Solution

Open Dental Software has reported that the vulnerabilities are fixed in version 18.4.0.

Disclosure Timeline

09/01/2018 - Tenable discovers vulnerabilities in 18.1.
09/12/2018 - Tenable requests security contact information from the vendor.
09/12/2018 - Open Dental forwards the request to [email protected] for further correspondence.
09/13/2018 - Tenable discloses the vulnerabilities to Open Dental. 90 day is December 11, 2018.
09/13/2018 - Open Dental confirms receipt.
09/20/2018 - Tenable requests an update.
10/04/2018 - Tenable requests an update.
11/09/2018 - Tenable requests an update.
11/09/2018 - Open Dental responds that they are working on the issues. Asks to include a statement in Tenable's advisory.
11/12/2018 - Tenable denies the request but mentions references to any vendor-supplied information will be linked to in the advisory.
11/13/2018 - Open Dental asks who to contact when patches are available.
11/13/2018 - Tenable replies with requested information.
12/07/2018 - Open Dental provides Tenable with preliminary patch information. Possible extension inquiry.
12/10/2018 - Tenable clarifies disclosure process and requests clarification on extension request.
12/11/2018 - Final day of 90 disclosure period. No response from vendor on extension request. Publication of TRA set for Dec. 12.
12/11/2018 - Open Dental notes that patches and release notes have been deployed.
12/12/2018 - Tenable publishes TRA.

All information within TRA advisories is provided “as is”, without warranty of any kind, including the implied warranties of merchantability and fitness for a particular purpose, and with no guarantee of completeness, accuracy, or timeliness. Individuals and organizations are responsible for assessing the impact of any actual or potential security vulnerability.

Tenable takes product security very seriously. If you believe you have found a vulnerability in one of our products, we ask that you please work with us to quickly resolve it in order to protect customers. Tenable believes in responding quickly to such reports, maintaining communication with researchers, and providing a solution in short order.

For more details on submitting vulnerability information, please see our Vulnerability Reporting Guidelines page.

If you have questions or corrections about this advisory, please email [email protected]

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