MITRE’s description of CWE-250: The product performs an operation at a privilege level that is higher than the minimum level required, which creates new weaknesses or amplifies the consequences of other weaknesses.
Common consequences MITRE lists
- Confidentiality, Integrity, Availability, Access Control: Gain Privileges or Assume Identity; Execute Unauthorized Code or Commands; Read Application Data; DoS: Crash, Exit, or Restart
Least privilege limits the damage of every other bug: a compromised process that runs as root or with an administrator role hands the attacker the whole host or cloud account.
- Run processes and containers as a non-root user, with a read-only filesystem and the Linux capabilities they do not need dropped.
- Give each workload its own identity with only the permissions its actions require.
- Move privileged operations into a small, separately reviewed component.
Guides on this site
Run Kubernetes workloads with only the privileges they need
Review pod settings, service accounts and effective permissions together before treating a namespace as an isolation boundary.
Review cloud permissions and role trust together
Distinguish who can obtain a cloud identity from what that identity can do, then test the effective access path.
Workload identity federation: short-lived, scoped identities for services and CI
Trace how a running workload obtains a short-lived identity, write cloud trust policies that match immutable claims instead of names or wildcards, and keep the resulting credential limited by audience and authorization.
Constrain desktop IPC and privileged helpers
Keep renderer content, local callers and plugins from turning a narrow feature into unrestricted operating-system access.
Harden container images from Dockerfile to admission
Build minimal, non-root images pinned by digest, keep secrets out of every layer, then scan, sign and verify the exact digest before it runs with dropped privileges.
Harden managed Kubernetes on EKS, AKS and GKE
Know what your provider secures and what you still own, then lock down API access, cloud identity, nodes, pod privileges and admission with settings that are generally available in Kubernetes 1.37, checked against the CIS and NSA/CISA baselines.
Choose cloud security posture tools and apply zero trust
What CSPM, CWPP, CIEM, CNAPP, DSPM and ASPM each find and miss, how they overlap, how to evaluate one on your own accounts, and how zero trust as defined in NIST SP 800-207 uses what they measure.
Secure AI-assisted development with coding assistants and agents
Treat generated code, suggested packages, repository text and MCP servers as untrusted inputs, and confine coding agents with OS-level isolation and short-lived, narrowly scoped credentials.
Sandbox model-generated code and computer-use agents
Run the code an agent writes, and agents that drive a browser or desktop, inside a boundary built for hostile code: a disposable runtime with no secrets and no default network, hard resource limits, and a person in front of every side effect.
Practice
- Privileged container lab: Reject a privileged workload before deployment · Browser lab
- NetworkPolicy lab: Lock down a shop namespace · Browser lab
- IAM trust policy lab: Evaluate a role trust policy against the confused deputy · Browser lab
- Verify Kubernetes admission and network boundaries · Local project
- Repair a security pipeline for GitHub Actions and GitLab CI · Local project
- Stop untrusted pages from using an Electron bridge · Local project
- Gate an image build on a CIS scan and a deviation register · Local project
- Run model-generated Python in a locked-down container · Local project
References
List data from MITRE; the name, definition and consequences are from MITRE’s CWE 4.20 catalogue. A guide is listed as the main subject when the weakness is what the guide is about, and as covering it when a dedicated section or worked example addresses it.
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