blueprintUE Self-Hosted Edition before 4.3.7 contains an insecure default configuration in its Docker Compose examples that sets MYSQL_ALLOW_EMPTY_PASSWORD=yes in database.env and publishes MariaDB on port 3306. Unauthenticated attackers reaching the Docker host on port 3306 can log in as root without a password to read, modify, or delete user accounts, blueprints, and all databases.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
References 7
https://github.com/blueprintue/blueprintue-self-hosted-edition/blob/v4.3.6/dock…
disclosure@vulncheck.com
https://github.com/blueprintue/blueprintue-self-hosted-edition/blob/v4.3.6/dock…
disclosure@vulncheck.com
https://github.com/blueprintue/blueprintue-self-hosted-edition/commit/e6a6e1d4c…
disclosure@vulncheck.com
https://github.com/blueprintue/blueprintue-self-hosted-edition/pull/270
disclosure@vulncheck.com
https://github.com/blueprintue/blueprintue-self-hosted-edition/releases/tag/v4.…
disclosure@vulncheck.com
https://github.com/blueprintue/blueprintue-self-hosted-edition/security/advisor…
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/blueprintue-self-hosted-edition-before-4.3…
disclosure@vulncheck.com