AWS traffic hijacking starts with over-privileged IAM

At a glance

What this is: This is an analysis of how AWS IAM permissions can be abused to manipulate DNS and traffic routing, with the key finding that visibility alone does not stop misuse of valid credentials.

Why it matters: It matters because cloud networking privileges sit inside NHI and IAM programmes, where over-privileged identities can turn routine configuration access into outage, interception, or redirect risk.

By the numbers:

• Systems with least-privileged AI access had a 17% incident rate vs 76% for over-privileged systems.
• 70% of organisations grant AI systems more access than they would give a human employee performing the exact same job.
• When AWS credentials are exposed publicly, attackers attempt access within an average of 17 minutes.

👉 Read Sonrai Security's analysis of AWS traffic hijacking through IAM permissions

Context

AWS traffic routing and DNS controls are part of the identity surface, not just the networking stack. When IAM permissions allow modification of Route53, API Gateway, Elastic Load Balancing, CloudFront, or Lightsail records, an attacker with valid credentials can redirect traffic, impersonate services, or break availability without exploiting a traditional software flaw.

The broader governance problem is that cloud teams often treat these permissions as operational convenience rather than high-risk identity authority. That creates an NHI-style control gap in cloud administration: configuration access becomes an attack path whenever least privilege is not enforced at the permission layer.

Key questions

Q: How should security teams control AWS permissions that can redirect traffic?

A: Treat DNS and routing permissions as privileged access, not routine cloud administration. Separate them from standard operator roles, require just-in-time elevation for changes, and enforce deny-by-default policies for the APIs that can modify traffic flow. If a valid identity can reroute production traffic on demand, the control model is too weak.

Q: Why do cloud networking permissions create outsized risk in IAM programmes?

A: Because they let an authenticated identity change where traffic goes, not just what it can read or launch. A single over-privileged role can redirect users, break service delivery, or expose internal flows. That makes Route53, API Gateway, load balancer, and domain-management permissions high-value privileged access.

Q: What do teams get wrong about visibility tools for cloud access risk?

A: They assume discovery is the same as control. CNAPPs and access analysis tools can show risky permissions, but they do not stop a live identity from using those permissions. If the underlying action remains allowed, an attacker with valid credentials can still manipulate traffic or routing.

Q: What should organisations do when high-risk cloud permissions are needed for operations?

A: Use tightly scoped breakglass or JIT workflows instead of permanent entitlements. Keep the approval path tied to a specific change, verify who can approve it, and ensure revocation happens automatically after use. That preserves operational flexibility without leaving traffic control exposed all the time.

Technical breakdown

How AWS identity permissions become traffic control

AWS networking behaviour is driven by IAM authorisation. If a principal can call APIs such as Route53 record changes, API Gateway integration updates, or load balancer rule modifications, it can alter where traffic goes rather than merely observe it. The risk is not just an isolated bad change. These permissions sit on the control plane, so a single valid identity can redirect user sessions, disrupt service delivery, or expose internal traffic paths. In cloud environments, the integrity of routing depends on the integrity of identity.

Practical implication: treat DNS and traffic-routing permissions as privileged identity operations and scope them separately from routine cloud admin access.

Why visibility tools do not stop IAM abuse

CNAPPs and cloud-native access analysis tools are good at surfacing misconfiguration, unused privilege, and policy drift. They do not, however, prevent a valid identity from making an authorised but harmful API call. That distinction matters because traffic manipulation usually happens through legitimate cloud interfaces, not malware. If the permission remains available, the attack remains available. Visibility helps you find the problem, but it does not remove the execution path.

Practical implication: pair discovery with enforcement so over-privileged routing permissions cannot be used even when they are known.

Why Cloud PAM changes the control model

Cloud PAM extends privilege management into API-driven cloud control planes. Instead of assuming broad admin roles are acceptable because they are monitored, it focuses on continuous discovery, least-privilege enforcement, and JIT elevation for sensitive permissions. That matters for cloud networking because the attacker goal is often to change records or rules briefly and then disappear. A control model that only records access after the fact is too weak for this class of abuse.

Practical implication: move sensitive DNS and routing actions behind just-in-time approval and automatic revocation.

Threat narrative

Attacker objective: The attacker aims to control traffic flow through cloud infrastructure so they can intercept data, redirect users, or cause service disruption.

1. Entry occurs when an attacker obtains valid cloud credentials and reaches AWS control-plane APIs that govern DNS or traffic routing.
2. Escalation occurs when those permissions include Route53, API Gateway, Elastic Load Balancing, CloudFront, or Lightsail changes that let the actor alter request flow.
3. Impact occurs when traffic is redirected, disrupted, intercepted, or used to send users to malicious infrastructure.

Breaches seen in the wild

• 230M AWS environment compromise — 230M AWS environments compromised via exposed .env files with cloud credentials.
• MongoBleed breach — MongoBleed exposed secrets across 87K MongoDB servers.

Read our 52 NHI Breaches Analysis report for a comprehensive view of breaches impacting Non-Human Identities including AI Agents.

NHI Mgmt Group analysis

Cloud routing permissions are privileged identity controls, not ordinary administration. The article shows that Route53, API Gateway, Elastic Load Balancing, CloudFront, and Lightsail permissions can directly shape request paths. That means a cloud identity with the wrong scope can become a traffic-hijack mechanism, not just a configuration mistake. The governance conclusion is straightforward: network control planes need the same privilege scrutiny as shell access and secret stores.

Visibility without enforcement is a reporting layer, not a defence. Sonrai Security is right to separate detection from prevention here. Tools that identify unused or excessive permissions still leave the execution path open if the credential remains valid. In NIST CSF terms, knowing about risk does not equal reducing it. Practitioners should treat this as a control-gap problem, not a dashboard problem.

Ephemeral access is the right shape for routing authority, because standing privilege creates unnecessary blast radius. The article’s central pattern is that high-risk cloud networking actions are infrequent but highly consequential. That makes them poor candidates for permanent access and strong candidates for scoped, time-bound elevation. The implication for NHI governance is that routing permissions should be governed as short-lived privileged entitlements, not as durable role membership.

Cloud PAM is becoming the operational boundary between observability and prevention. Continuous discovery shows where the risk sits, but cloud-native privilege controls decide whether the identity can actually use it. That shift matters across IAM and NHI programmes because it moves cloud networking protection from review-based governance to enforcement-based governance. Practitioners should assume that without this boundary, over-privileged identities will continue to remain exploitable.

Traffic manipulation is an identity problem because the attacker’s leverage comes from authenticated API use. The article makes clear that no exploit chain is required when access already exists. That is the governance lesson for cloud teams: access review, privilege scoping, and JIT elevation are not abstract IAM hygiene when they govern DNS and routing. They are the controls that decide whether the control plane is safe to expose at all.

From our research:

• 70% of organisations grant AI systems more access than they would give a human employee performing the exact same job, according to The 2026 Infrastructure Identity Survey.
• 67% of security leaders agree identity management must fundamentally shift to address agentic AI systems, according to The 2026 Infrastructure Identity Survey.
• For a broader control model, see Ultimate Guide to NHIs for lifecycle, visibility, and least-privilege governance patterns.

What this signals

Traffic manipulation is becoming a privilege-design problem, not a monitoring problem. Cloud teams that still treat DNS and routing permissions as ordinary admin rights are carrying avoidable blast radius into production. The operational signal is simple: if a valid identity can redirect traffic without a separate JIT approval path, the control plane is already overexposed.

Standing permission is the real failure mode behind many cloud hijack paths. The 67% reliance on static credentials in our 2026 Infrastructure Identity Survey points to a wider truth for identity programmes: durable access makes ephemeral misuse easier to hide and harder to contain. Teams should move high-risk cloud actions into approval-bound privilege windows rather than leave them as persistent entitlements.

Cloud PAM now sits alongside zero trust as a practical boundary for cloud control planes. If the role can alter where traffic lands, the entitlement is already privileged enough to warrant separate governance. For practitioners, the next step is not more observation. It is tighter control of who can change routing, when they can do it, and how quickly the access disappears.

For practitioners

• Classify DNS and routing APIs as privileged access paths Inventory Route53, API Gateway, Elastic Load Balancing, CloudFront, and Lightsail permissions separately from general cloud administration. Apply tighter review, approval, and change controls to those actions because they can redirect traffic, not just modify infrastructure.
• Remove standing access to traffic-manipulation permissions Replace persistent entitlement with just-in-time elevation for domain and routing changes. Keep the approval scope narrow, tie it to a specific task, and revoke access automatically after the change is complete.
• Enforce deny-by-default on high-risk IAM actions Use centrally managed policies to block broad permission sets that can alter traffic flow. Validate breakglass paths in advance so emergency recovery still works when privileged routing actions are restricted.
• Validate routing controls with misuse scenarios Test whether a valid cloud identity can change DNS records, modify load balancer rules, or repoint API integrations without a separate approval step. If it can, the environment still treats traffic control as routine access.

Key takeaways

• AWS traffic redirection is an identity abuse problem when privileged IAM permissions can modify DNS, load balancer, or gateway behaviour.
• Visibility tools can reveal risky cloud permissions, but only enforcement stops a valid credential from being used to manipulate traffic.
• Least privilege, deny-by-default policy, and just-in-time elevation are the controls that reduce blast radius in cloud routing pathways.

Key terms

• Cloud control plane: The control plane is the management layer that lets identities create, change, or delete cloud resources. In AWS, it is where IAM-authorised actions can alter DNS records, routing rules, and service integrations. For security teams, control-plane access is often more sensitive than data-plane access because it governs how the environment behaves.
• Traffic manipulation: Traffic manipulation is the deliberate redirection, disruption, or interception of network requests through changes to routing or name resolution. In cloud environments, it is often achieved through legitimate admin APIs rather than exploits. The security problem is identity authority, not packet-level access.
• Just-in-time access: Just-in-time access grants privileged permissions only when a specific task requires them and removes them automatically after use. For cloud and NHI governance, it reduces the window in which a valid identity can abuse high-risk APIs such as DNS or routing controls. It is most effective when paired with approval and automatic revocation.
• Standing privilege: Standing privilege is access that remains permanently available to an identity instead of being issued only when needed. In cloud governance, it creates unnecessary blast radius because the same permissions that support operations can also be used for abuse at any time. The risk increases sharply when the privilege can change traffic flow or service behaviour.

Deepen your knowledge

NHI governance, agentic AI identity, and machine identity security are core topics in our NHI Foundation Level course, the industry's only accredited NHI security programme. If you are responsible for identity security strategy or NHI governance in your organisation, it is worth exploring.

This post draws on content published by Sonrai Security: Blocking Traffic Manipulation in AWS Starts With IAM. Read the original.