Reference:
執行 gpedit.msc
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| High | Cloud Metadata Potentially Exposed |
| Description | The Cloud Metadata Attack attempts to abuse a misconfigured NGINX server in order to access the instance metadata maintained by cloud service providers such as AWS, GCP and Azure. |
| All of these providers provide metadata via an internal unroutable IP address '169.254.169.254' - this can be exposed by incorrectly configured NGINX servers and accessed by using this IP address in the Host header field. | |
| URL | https://xxx.com.tw/latest/meta-data/ |
| Method | GET |
| Parameter | |
| Attack | 169.254.169.254 |
| Evidence | |
| Instances | 1 |
| Solution | Do not trust any user data in NGINX configs. In this case it is probably the use of the $host variable which is set from the 'Host' header and can be controlled by an attacker. |
| Reference | https://www.nginx.com/blog/trust-no-one-perils-of-trusting-user-input/ |
| CWE Id | |
| WASC Id | |
| Plugin Id | 90034 |