1up! Software Going1up The Newspaper CMS 1.x Open Redirect

#####################################################################################

# Exploit Title : 1up! Software Going1up The Newspaper CMS 1998-2019 1.x Open Redirection
# Author [ Discovered By ] : KingSkrupellos
# Team : Cyberizm Digital Security Army
# Date : 26/02/2019
# Vendor Homepage : going1up.com
# Software Information Link : going1up.com/main.asp?SectionID=4&SubSectionID=16
# Software Version : 1.x
# Software Price Type : Paid Download
# Tested On : Windows and Linux
# Category : WebApps
# Exploit Risk : Medium
# Google Dorks : intext:''Software © 1998-2019 1up! Software, All Rights Reserved''
# Vulnerability Type : CWE-601 [ URL Redirection to Untrusted Site ('Open Redirect') ]
# PacketStormSecurity : packetstormsecurity.com/files/authors/13968
# CXSecurity : cxsecurity.com/author/KingSkrupellos/1/
# Exploit4Arab : exploit4arab.org/author/351/KingSkrupellos

#####################################################################################

# Description about Software :
***************************
1up! Software Going1up is the Newspaper Content Management System.

#####################################################################################

# Impact :
***********
This web application 1up! Software Going1up The Newspaper CMS 1998-2019 1.x 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.

#####################################################################################

Vulnerable Source Code :
************************
$redirect_linkurl = $_GET["linkurl"];
header("Location: " . $redirect_linkurl);

# Open Redirection Exploit :
*************************
/redirect.asp?uid=27003025&subsectionid=-1&adarrayid=169&adposition=5&linkurl=https://www.[REDIRECT-ADDRESS].gov

#####################################################################################

# Discovered By KingSkrupellos from Cyberizm.Org Digital Security Team

#####################################################################################