Summary
Homer deployments using internal authentication automatically create an administrative account with a predictable default password during bootstrap. An attacker who can reach the login endpoint may authenticate immediately and obtain full administrative access because the account is not required to change its password.
Homer deployments using internal authentication automatically create an administrative account with a predictable default password during bootstrap. An attacker who can reach the login endpoint may authenticate immediately and obtain full administrative access because the account is not required to change its password.
Affected context
The issue affects fresh Homer deployments that use internal authentication and retain the bootstrap-created admin account with its default credential. Risk is highest when the Homer login endpoint is reachable by untrusted users or from an exposed network, and when no separate administrative onboarding or password rotation process is applied.
The issue affects fresh Homer deployments that use internal authentication and retain the bootstrap-created admin account with its default credential. Risk is highest when the Homer login endpoint is reachable by untrusted users or from an exposed network, and when no separate administrative onboarding or password rotation process is applied.
Exploit preconditions
- Attack surface: Homer web login endpoint
- Required access: Network reachability to the authentication interface; no valid account is necessarily required
- Trigger point: Authentication using the automatically provisioned administrative account
- Why exploitation is possible: The bootstrap process creates a known username and password, and the account does not require a password change before administrative use
- Attack surface: Homer web login endpoint
- Required access: Network reachability to the authentication interface; no valid account is necessarily required
- Trigger point: Authentication using the automatically provisioned administrative account
- Why exploitation is possible: The bootstrap process creates a known username and password, and the account does not require a password change before administrative use
Why this happens
The bootstrap workflow provisions a privileged account with a fixed, publicly knowable password instead of requiring a deployment-specific secret or interactive administrator setup. This is a hardcoded credential pattern mapped to CWE-798: Use of Hard-coded Credentials. Storing the value as a legacy SHA-256 hash does not address the underlying issue because the credential itself remains predictable and usable for authentication.
The bootstrap workflow provisions a privileged account with a fixed, publicly knowable password instead of requiring a deployment-specific secret or interactive administrator setup. This is a hardcoded credential pattern mapped to CWE-798: Use of Hard-coded Credentials. Storing the value as a legacy SHA-256 hash does not address the underlying issue because the credential itself remains predictable and usable for authentication.
Potential impact
- An attacker may obtain full administrative access to Homer
- An attacker could alter observability settings, users, or stored data
- An attacker may disrupt monitoring and incident-response visibility
- An attacker could access sensitive telemetry or communications metadata
- Compromise could support lateral movement into connected systems, depending on deployment permissions
- An attacker may obtain full administrative access to Homer
- An attacker could alter observability settings, users, or stored data
- An attacker may disrupt monitoring and incident-response visibility
- An attacker could access sensitive telemetry or communications metadata
- Compromise could support lateral movement into connected systems, depending on deployment permissions
General mitigation guidance
Mitigation generally focuses on eliminating shared bootstrap credentials and making privileged-account enrollment explicit.
Common defensive patterns include:
- Requiring a unique administrator secret or an interactive setup step before enabling administrative access
- Forcing a password change before the account can perform administrative operations
- Disabling or removing default accounts when they are not needed
- Using a password-hashing scheme designed for credential storage rather than legacy fast hashes
- Restricting access to the login endpoint through network policy, identity-aware proxies, or trusted administrative networks
- Applying least privilege to Homer service accounts and connected integrations
- Storing deployment secrets in a managed secret system rather than source code, images, or static defaults
Mitigation generally focuses on eliminating shared bootstrap credentials and making privileged-account enrollment explicit.
Common defensive patterns include:
- Requiring a unique administrator secret or an interactive setup step before enabling administrative access
- Forcing a password change before the account can perform administrative operations
- Disabling or removing default accounts when they are not needed
- Using a password-hashing scheme designed for credential storage rather than legacy fast hashes
- Restricting access to the login endpoint through network policy, identity-aware proxies, or trusted administrative networks
- Applying least privilege to Homer service accounts and connected integrations
- Storing deployment secrets in a managed secret system rather than source code, images, or static defaults
How teams detect issues like this
Organizations can identify this class of issue through:
- Static analysis and secret-scanning rules for known usernames, default passwords, and credential literals
- Code review checks covering bootstrap, initialization, migration, and first-run authentication paths
- Tests that create a fresh deployment and verify that no predictable privileged credential is accepted
- Configuration policy requiring unique secrets, first-login rotation, and restricted administrative endpoints
- Authentication-log monitoring for successful use of default-account credentials and unusual administrator sign-ins
Automated review tools can help flag hardcoded credential patterns, but deployment-level tests are also important because defaults may be assembled across configuration and initialization code.
Organizations can identify this class of issue through:
- Static analysis and secret-scanning rules for known usernames, default passwords, and credential literals
- Code review checks covering bootstrap, initialization, migration, and first-run authentication paths
- Tests that create a fresh deployment and verify that no predictable privileged credential is accepted
- Configuration policy requiring unique secrets, first-login rotation, and restricted administrative endpoints
- Authentication-log monitoring for successful use of default-account credentials and unusual administrator sign-ins
Automated review tools can help flag hardcoded credential patterns, but deployment-level tests are also important because defaults may be assembled across configuration and initialization code.
