Azure Attack Vectors 🤺
Azure Attack Vectors: Identity, Infrastructure, and Persistence
Cloud infrastructure security is a battle for identity control. Current threat landscapes prioritize exploiting Azure-specific misconfigurations and authentication weaknesses.
Identity Exploitation and Phishing
Attackers use Evilginx to establish man-in-the-middle positions, capture session tokens, and bypass Multi-Factor Authentication (MFA). By configuring glue records to resolve phishing domains to attacker-controlled infrastructure, adversaries deliver convincing lures via phishlets.
The Device Code flow (/devicecode endpoint) is a primary vector for phishing campaigns, providing verification URIs that bypass traditional security boundaries. Primary Refresh Tokens (PRTs) are targeted via the TPM (Trusted Platform Module) using tools like ROADToken to emulate browser sessions and maintain persistent access.
Infrastructure and Resource Access
Excessive permissions facilitate lateral movement. The Contributor role on an Azure Key Vault provides sufficient privilege to modify access policies and extract secrets.
Tools such as Microburst automate the dumping of storage keys from Azure Storage Accounts.
Cloud compute resources present a significant risk:
- Virtual Machines: Administrator-level access allows password resets and arbitrary command execution.
- Container Registries (ACR): Images that are improperly secured often contain sensitive data or secrets. Mitigate this by scanning images before push and deleting compromised images immediately.
- ARM Deployments: Secret fields in deployment templates often contain plaintext strings accessible to unauthorized entities.
Persistence and Lateral Movement
Adversaries establish a long-term presence by elevating the privileges of a Logic App-managed identity. AADConnect is a high-value target; tools like AADInternals extract credentials to move from on-premises environments into the Azure cloud.
Compromising ADFS (Active Directory Federation Services) allows for the extraction of token-signing certificates. Attackers use these to craft SAML tokens that impersonate any user. Similarly, Seamless SSO vulnerabilities enable MFA bypass and direct management portal access via Kerberos TGS ticket crafting.
Reconnaissance and Misconfiguration
Userrealm discovery (/GetUserRealm.srf) identifies whether domains are managed or federated, informing the attack strategy. Subdomain takeover occurs when DNS records point to unassigned Azure resources, allowing attackers to serve malicious content.
You can test your own domain’s federation status by navigating to: https://login.microsoftonline.com/getuserrealm.srf?login=user@yourdomain.com&xml=1
Executive Summary: Financial and Legal Reality
Security testing is not a technical chore; it is a financial insurance policy.
The 2026 Risk Landscape
- Total Loss: The global average cost of a data breach has reached $4.88 million. In the United States, this surges to $10.22 million per incident.
- The Time Tax: Breaches caused by stolen credentials are the primary focus of this testing, and they take the longest to find. Identifying a breach in under 200 days saves your company $1.4 million in recovery costs.
- Cloud Vulnerability: 83% of organizations reported a cloud-related breach in the last 18 months. Identity-based attacks are the leading cause.
- C-Suite Liability: Under NIS2 and DORA regulations, executives now face personal liability and massive corporate fines for failing to implement “adequate risk management,” which includes proactive penetration testing.
Strategic Outcomes
- Validation of MFA: Proves whether your $1M+ identity investment actually stops a $50 phishing kit.
- Data Sovereignty: Locates plaintext secrets in ARM templates and Storage Accounts before they appear on the dark web.
- Brand Resilience: Stops subdomain hijacking before your official URL is used to distribute malware.