CorsMe : Cross Origin Resource Sharing MisConfiguration Scanner

A CorsMe misconfiguration scanner tool based on golang with speed and precision in mind !

Misconfiguration type this scanner can check for

• Reflect Origin checks
• Prefix Match
• Suffix Match
• Not Esacped Dots
• Null
• ThirdParties (Like => github.io, repl.it etc.)
  • Taken from Chenjj’s github repo
• SpecialChars (Like => “}”,”(“, etc.)
  • See more in Advanced CORS Exploitation Techniques

How to Install?

$ go get -u github.com/shivangx01b/CorsMe

Usage

• Single Url

echo “https://example.com” | ./CorsMe

• Multiple Url

cat http_https.txt | ./CorsMe -t 70

• Allow wildcard .. Now if Access-Control-Allow-Origin is * it will be printed

cat http_https.txt | ./CorsMe -t 70 –wildcard

• Add header if required

cat http_https.txt | ./CorsMe -t 70 -wildcard -header “Cookie: Session=12cbcx….”

• Tip

cat subdomains.txt | ./httprobe -c 70 -p 8080,8081,8089 | tee http_https.txt cat http_http

s.txt | ./CorsMe -t 70

Note

• Scanner stores the error results as “error_requests.txt”… which contains hosts which cannot be requested