Threat actors mistreated an open redirect on official site regarding the brand new Joined Kingdom’s Company to have Environment, Restaurants & Outlying Situations (DEFRA) so you can lead visitors to phony OnlyFans internet dating sites.
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Abusing unlock redirect on DEFRA
As an element of which malicious strategy, chances actors mistreated an open redirect at this appeared as if an effective genuine You.K. bodies connect but rerouted individuals to the brand new fake OnlyFans dating site.
Redirects are legitimate URLs on website web addresses that automatically redirect users from the initial site to another URL, commonly at an external site.
An open redirect can be modified by anyone, allowing threat actors and scammers to create redirects from a legitimate site to any site they want.
This allows threat actors to abuse open redirects and cause legitimate links to appear in search results that send visitors to websites under their control to display phishing forms or deliver malware.
The malicious campaign abusing the open redirect on DEFRA's river conditions site was discovered last week by analysts at Pen Test Partners, who shared their findings with BleepingComputer.
"On Tuesday afternoon, one of my colleagues Adam Bromiley noticed an open redirect on the UK's Environment Agency web site. It popped up during a Google search whilst he was looking for SoC (hardware System on Chip) datasheets!," explained the report by Pen Test Partners.
These redirects were listed as Google search results promoting porn and adult site likely after being added to websites that were then indexed by Google's indexing bots.
Google search results with redirects to fake OnlyFans sitesSource: Pen Test Partners
As you can see from the network requests monitored by Fiddler, clicking on the 'riverconditions.environment-agency.gov.uk/relatedlink.html' link led the visitors through a series of redirects that ultimately landed them on various fake adult sites, such as 'kap5vo.cyou', ' and more.
Phony OnlyFans online dating sites abuse British Environment Company unlock reroute
The redirection process leads to impressivedate, an OnlyFans cloneSource: Pen Test Partners
For example, when the rvzqo.impresivedate[.]com site is first opened, it displays a large animated OnlyFans logo, followed by the following fake dating site.
Fake OnlyFans dating siteSource: BleepingComputer
These fake OnlyFans sites prompt the user to answer a series of questions regarding the type of "date" they are looking for and ultimately redirect them once again to adult "cheating" sites.
While most '.gov.uk' sites accept security reports via HackerOne, the Environment Agency is not part of the program. Therefore, there was a 24-hour delay between finding the open redirect and reporting it to the right person at Defra.
The abused DEFRA domain at "riverconditions.environment-agency.gov.uk" was taken offline, and its DNS records were removed approximately 48 hours after Pen Test Partners submitted their report. Unfortunately, the website is still unreachable at the time of writing this.
At the same time, a second researcher noticed the same issue via Google Search results and publicly disclosed the issue on Twitter.
BleepingComputer contacted DEFRA about the redirect attack and was told that the agency was aware of the technical issues and moved the content to a new location that can still be accessed.
"We are aware of the technical issues with the River Thames conditions website. Our teams have worked quickly to move the content to a new site which the public can now easily access," a U.K. Environment Agency spokesperson told BleepingComputer.
In 2020, a malicious SEO campaign abused an open redirect on numerous U.S. government websites, such as , to redirect visitors to porn sites.
Another malicious campaign that year abused an open redirect onto redirect visitors to COVID-19 phishing sites that spread malware.
More recently, we reported on attackers exploiting open redirects on the Snapchat and American Express sites to lead visitors to Microsoft 365 phishing sites.