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The US Federal Bureau of Investigation (FBI) and Interpol have allegedly seized proxy servers used in connection with Blockchain-based domains belonging to Joker's Stash, a notorious fraud bazaar known for selling compromised payment card data in underground forums. The takedown  happened  last week on December 17. The operators of Joker's Stash operate several versions of the platform, including  Blockchain proxy server domains  — .bazar, .lib, .emc, and .coin — that are responsible for redirecting users to the actual website and two other Tor (.onion) variants. Joker's Stash implemented the use of  Blockchain DNS  via a  Chrome browser extension  in 2017. These Blockchain websites make use of a decentralized DNS where the top-level domains (e.g., .bazar) are not owned by a single central authority, with the lookup records shared over a peer-to-peer network as opposed to a DNS provider, thus bringing in significant advantages like  bul...

The US Cybersecurity Infrastructure and Security Agency (CISA) has  warned  of critical vulnerabilities in a low-level TCP/IP software library developed by Treck that, if weaponized, could allow remote attackers to run arbitrary commands and mount denial-of-service (DoS) attacks. The four flaws affect Treck TCP/IP stack version 6.0.1.67 and earlier and were reported to the company by Intel. Two of these are rated critical in severity. Treck's embedded TCP/IP stack is deployed worldwide in manufacturing, information technology, healthcare, and transportation systems. The most severe of them is a heap-based buffer overflow vulnerability ( CVE-2020-25066 ) in the Treck HTTP Server component that could permit an adversary to crash or reset the target device and even execute remote code. It has a CVSS score of 9.8 out of a maximum of 10. The second flaw is an out-of-bounds write in the IPv6 component ( CVE-2020-27337 , CVSS score 9.1) that could be exploited by an unauthentic...

Law enforcement agencies from the US, Germany, Netherlands, Switzerland, France, along with Europol's European Cybercrime Centre (EC3), announced today the coordinated takedown of Safe-Inet, a popular virtual private network (VPN) service that was used to facilitate criminal activity. The three domains in question — insorg[.]org, safe-inet[.]com, and safe-inet[.]net — were shut down, and their infrastructure seized as part of a joint investigation called "Operation Nova." Europol called Safe-Inet a cybercriminals' " favorite ." A crucial reason for the domains' seizure has been their central role in facilitating ransomware, carrying out web-skimming, spear-phishing, and account takeover attacks. The service, which comes with support for Russian and English languages and has been active for over a decade, offered " bulletproof hosting services " to website visitors, often at a steep price to the criminal underworld. As of December 1, the ...

As the probe into the  SolarWinds supply chain attack  continues, new digital forensic evidence has brought to light that a separate threat actor may have been abusing the IT infrastructure provider's Orion software to drop a similar persistent backdoor on target systems. "The investigation of the whole SolarWinds compromise led to the discovery of an additional malware that also affects the SolarWinds Orion product but has been determined to be likely unrelated to this compromise and used by a different threat actor," Microsoft 365 research team  said  on Friday in a post detailing the Sunburst malware. What makes the newly revealed malware, dubbed "Supernova," different is that unlike the Sunburst DLL,  Supernova  ("app_web_logoimagehandler.ashx.b6031896.dll") is not signed with a legitimate SolarWinds digital certificate, signaling that the compromise may be unrelated to the previously disclosed supply chain attack. In a  standalone write-up , ...

A team of researchers today unveiled two critical security vulnerabilities in Dell Wyse Thin clients that could have potentially allowed attackers to remotely execute malicious code and access arbitrary files on affected devices. The flaws, which were uncovered by healthcare cybersecurity provider CyberMDX and reported to Dell in June 2020, affects all devices running ThinOS versions 8.6 and below. Dell has addressed both the vulnerabilities in an  update  released today. The flaws also have a CVSS score of 10 out of 10, making them critical in severity. Thin clients are typically computers that run from resources stored on a central server instead of a localized hard drive. They work by establishing a remote connection to the server, which takes care of launching and running applications and storing relevant data. Tracked as CVE-2020-29491 and CVE-2020-29492 , the security shortcomings in Wyse's thin clients stem from the fact that the FTP sessions used to pull firmwar...

Everyone makes mistakes. That one sentence was drummed into me in my very first job in tech, and it has held true since then. In the cybersecurity world, misconfigurations can create exploitable issues that can haunt us later - so let's look at a few common security misconfigurations. The first one is development permissions that don't get changed when something goes live. For example, AWS S3 buckets are often assigned permissive access while development is going on. The issues arise when security reviews aren't carefully performed prior to pushing the code live, no matter if that push is for the initial launch of a platform or for updates. The result is straight-forward; a bucket goes live with the ability for anyone to read and write to and from it. This particular misconfiguration is dangerous; since the application is working and the site is loading for users, there's no visible indication that something is wrong until a threat actor hunting for open buckets stum...

Three dozen journalists working for Al Jazeera had their iPhones stealthily compromised via a zero-click exploit to install spyware as part of a Middle East cyberespionage campaign. In a new  report  published yesterday by University of Toronto's Citizen Lab, researchers said personal phones of 36 journalists, producers, anchors, and executives at Al Jazeera, and a journalist at London-based Al Araby TV were infected with Pegasus malware via a now-fixed flaw in Apple's iMessage. Pegasus is developed by Israeli private intelligence firm NSO Group and allows an attacker to  access sensitive data  stored on a target device — all without the victim's knowledge. "The shift towards zero-click attacks by an industry and customers already steeped in secrecy increases the likelihood of abuse going undetected," the researchers said. "It is more challenging [...] to track these zero-click attacks because targets may not notice anything suspicious on their phone. E...