![]() In an enterprise scenario, privilege escalation attacks take progressive control of the system access functionalities in the following ways: This is essentially how zero trust fuels the implementation of the principle of least privilege-through role-based access control.īenefits of implementing the principle of least privilege A PAM solution offers settings for IT admins to configure their own restrictions and map least privilege to users based on their roles. Any PAM solution's modus operandi is based on the cybersecurity principle of least privilege. Now similarly, through the use of a PAM solution that incorporates zero trust and the principle of least privilege, IT admins can enforce access restrictions on users to limit their privileges to those of the user role's requirements. Second, the manager trusts employees to perform tasks that fall under the purview of their role but also needs timely verification if they are to perform tasks that require entrance to rooms that fall outside their default access. Why is it that the manager had to implement least privilege in the first place? First, not all employees need access to every room, especially important places like the vault, which holds customer information and wealth. Let's look back to the bank example we saw earlier. How does zero trust and least privilege play into role-based access control? In short, enforcing the principle of least privilege revolves around the zero trust security model, i.e., the idea that every employee, irrespective of their geographical location, has the potential to fall victim to threat actors or even become one themselves. Once the job is done, the access is immediately revoked, closing the door on potential vulnerabilities and standing privileges. The dangers of privilege creep can be mitigated by enforcing least privilege across all employees in the enterprise. Typical examples of privilege creep include if an individual's job description is updated and the individual's old privileges are not revoked even after the period of transition, or if an individual needs additional privileges temporarily to perform a task outside their usual job function and the organization does not revoke these additional privileges after the job is complete. Another plausible and common reason privilege creep happens is if a team forgets to remove the privileges of old or temporary users. Privilege creep often occurs when the IT admins are generous while assigning privileges to users to escape from the bureaucracy of IT support. Privilege creep is the proliferation of privileges beyond a user's access level. Effective enforcement of least privilege includes implementing a fine-grained, centralized access control mechanism across the enterprise network-one that balances cybersecurity and compliance requirements while also making sure there's no impediment to end users' daily operational requirements. To enforce least privilege simply means to assign the minimum required privileges to perform a job. This philosophy of assigning the least privileges to users based on what their role demands is the principle of least privilege. Essentially, the manager has assigned the least amount of privileges required by the employee belonging to that specific role, and only the manager has access to the bank's vault. ![]() The legal advisor would probably be given access to the printer room and the filing cabinet, but is also given permission to enter the bank manager's office on request. The clerk is given access to the filing cabinet and the printer room. The copywriter is given access to the printer room so that they may print agreements, policy documents, and other important paperwork. Suppose a bank manager has three employees reporting to them a copywriter, a clerk, and a legal advisor.
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