**Hard-Coded Credentials Vulnerability in GoHarbor's Harbor: A Cybersecurity Risk Waiting to Happen**
GoHarbor's popular open-source container registry project, Harbor, has a significant security flaw that could leave users vulnerable to data breaches and supply-chain attacks. The default admin password, "Harbor12345," is hardcoded into the application, allowing remote attackers to gain full administrative access if left unchanged.
This vulnerability was discovered in the Harbor project, which stores, signs, and manages container images for organizations. The issue lies in the fact that Harbor initializes with a default administrator account (admin) and password (Harbor12345), configured through the harbor_admin_password parameter in the harbor.yml file. While operators are expected to change these credentials during or after deployment, Harbor does not enforce a password change during setup or upon first login.
**The Risks of Hard-Coded Credentials**
If the default credentials remain unchanged, an attacker can authenticate using the publicly known password to gain full administrative access to the Harbor registry and all managed artifacts. This includes the ability to overwrite or inject malicious container images, enabling supply-chain attacks that may lead to remote code execution in downstream continuous integration and continuous development (CI/CD) pipelines and Kubernetes environments.
An attacker who gains administrative access can also establish persistent access by creating new users, robot accounts, or API tokens, and can weaken or disable security controls such as vulnerability scanning, signature enforcement, and role-based access controls. Additionally, sensitive images can be exfiltrated by configuring replication to external registries or downloading artifacts directly.
Administrative privileges also allow destructive actions such as deleting repositories or corrupting artifacts, resulting in service disruption and loss of system integrity. In fact, a single attacker with administrative access can compromise the entire Harbor registry, putting all managed artifacts at risk.
**How to Mitigate the Risk**
To prevent this vulnerability from being exploited, operators should change the default administrative password either before or immediately after deployment. This can be done through the Harbor web interface or by specifying a unique value for harbor_admin_password in harbor.yml during installation.
It's also essential to note that a fix has been proposed to address the hardcoded default password by removing or randomizing default credentials during installation. The patch is available on GitHub, and users are encouraged to review and apply it to their Harbor installations.
**Conclusion**
The hard-coded credentials vulnerability in GoHarbor's Harbor project highlights the importance of secure deployment practices and regular security audits. While this issue has been identified, it serves as a reminder that even popular open-source projects can have security flaws that need to be addressed.
By changing the default admin password and applying the proposed fix, users can mitigate this risk and ensure the security of their container registry. It's essential for organizations to prioritize cybersecurity and stay up-to-date with the latest security patches and best practices to prevent data breaches and supply-chain attacks.
**References**
* GitHub pull request: https://github.com/goharbor/harbor/pull/19188
* Harbor documentation:
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