Blogger.com vulnerability, Gaining Administrative Privileges on any Account !
Mar 13, 2011
Blogger.com vulnerability, Gaining Administrative Privileges on any Account ! In the last 2 months, Nir.Goldshlager participated in Google reward program and found some High, Serious vulnerabilities. The vulnerability that Nir.Goldshlager want to share first, Is a critical vulnerability in Blogger (Google Service). That vulnerability could be used by an attacker to get administrator privilege over any blogger account (Permission Issue). Here are the details regarding the issue in Blogger service, Nir.Goldshlager found a HTTP Parameter Pollution vulnerability in Blogger that allow an attacker to add himself as an administrator on the victim's blogger account, Technical details: Here are the steps for getting admin control permissions over any blogger accounts. 1.) The attacker Use the invite author options in blogger (add authors): Vulnerability location: POST /add-authors.do HTTP/1.1 Request: security_token=attackertoken&blog...