This URI is a attempt using the file:// protocol.
When you configure the AWS CLI or SDKs, they often look for the ~/.aws/credentials file to authenticate your requests. The file typically has the following format:
For example, if you're developing an application that needs to access a user's S3 bucket, your app would redirect the user to an AWS authentication page. After the user grants permission, AWS redirects the user back to your application via the specified callback URL, along with an authorization code or token. callback-url-file-3A-2F-2F-2Fhome-2F-2A-2F.aws-2Fcredentials
The string callback-url-file-3A-2F-2F-2Fhome-2F-2A-2F.aws-2Fcredentials is a URL‑encoded representation of the following plaintext string:
The path /home/*/.aws/credentials is a common location for AWS CLI and SDK credentials on Linux/macOS systems. The * could be exploited in several ways: This URI is a attempt using the file:// protocol
Decoding callback-url=file%3A%2F%2F%2Fhome%2F%2A%2F.aws%2Fcredentials : The Mechanics of OAuth SSRF and AWS Credential Theft
Medium-term (1–4 weeks)
: The parameter likely used by the application to redirect or fetch data after a process completes.
Related search suggestions (These can help investigate further) After the user grants permission, AWS redirects the
Most programming languages and frameworks provide URI parsing and fetching capabilities. By default, many restrict schemes to http and https . However, misconfigurations or legacy code can enable support for file:// , ftp:// , gopher:// , etc. The file:// scheme is especially dangerous because it grants access to the local filesystem.