Blind SSRF in Skype (Microsoft)
Server Side Request Forgery is a vulnerability that allows attacker to make server request to attacker controlled network location/path. While analyzing requests in Burp for Skype for Web, found a endpoint at *.*.skype.com/path?url=https://example.com , As the url param appeared interesting tried to change the url with my ngrok instance & got a hit ! Confirmed that it’s Skype which hit the url by looking at the ngrok inspect web console by verifying received User-Agent header(Skype)and IP address in who....