Hacking Instagram Accounts using OAuth vulnerability
May 02, 2013
' Nir Goldshlager ' known as Facebook hacker and founder of Break Security , who reported many critical bugs in Facebook OAuth mechanism in past few months, today disclose a critical vulnerability in Instagram Oauth that allow an attacker to hack any account. Succesful hack allows attacker to access private photos, ability to delete victim's photos and to edit comments and also the ability to post new photos. Hacker explained that there are two ways to hack Instagram accounts using OAuth, first via Hijack Instagram accounts using the Instagram OAuth or Hijack Instagram accounts using the Facebook OAuth Dialog. During his bug hunting Nir found loopholes in Instagram's security parameters i.e redirect_uri , that allows attacker to pass the access token to his own domain with mx as suffix i.e code straight to breaksec.com.mx . POC : https://instagram.com/oauth/authorize/?client_id=33221863eec546659f2564dd71a8a38d&redirec...