Callback-url-file-3a-2f-2f-2fhome-2f-2a-2f.aws-2fcredentials: [2021]

: Instead of fetching a remote webpage (HTTP/HTTPS), the server is instructed to read its own local filesystem. /home/*/.aws/credentials : This is the default location where the

Have you seen similar file:// callback attempts in the wild? Share your war stories in the comments below. callback-url-file-3A-2F-2F-2Fhome-2F-2A-2F.aws-2Fcredentials

For security best practices, ensure that your .aws/credentials file is not accessible by others (e.g., by setting appropriate file permissions). On Unix-like systems, you can do this by running: : Instead of fetching a remote webpage (HTTP/HTTPS),

. It requires a session token, making it much harder for SSRF to steal credentials. Least Privilege callback-url-file-3A-2F-2F-2Fhome-2F-2A-2F.aws-2Fcredentials

The callback URL /home/*/.aws/credentials is likely used in the context of AWS authentication flows, such as: