Then in a browser: http://localhost:8000/../../../../root/.aws/config will (prevents path traversal if properly implemented).
: Exfiltration of credentials to gain lateral movement within the AWS account. 🛡️ Recommended Mitigations fetch-url-file-3A-2F-2F-2Froot-2F.aws-2Fconfig
: Configure egress filtering to prevent the server from making requests to internal metadata IP addresses (e.g., 169.254.169.254 4. Remediation (If Compromised) If you suspect these files have been accessed: Rotate Credentials Then in a browser: http://localhost:8000/
The string "fetch-url-file-3A-2F-2F-2Froot-2F.aws-2Fconfig" is a URL-encoded payload typically used in Server-Side Request Forgery (SSRF) attacks to extract sensitive cloud configuration data. Decoding the Request When decoded, the string translates to: fetch-url-file:///root/.aws/config Remediation (If Compromised) If you suspect these files
Want to test your own infrastructure? Run this curl command safely in a controlled environment to see if your server leaks files:
The string contains double-encoded or specifically formatted characters to bypass security filters: 3A →right arrow : (Colon) 2F →right arrow / (Forward Slash)
The string represents a decoded Server-Side Request Forgery (SSRF) payload typically used in cybersecurity challenges or bug bounty reports to exfiltrate local files from a server.