Secure your Home Server from being used as a Hacking Server by Crooks


SSH also referred to as Secure Shell, is a cryptographic network protocol which secures remote login from one computer to another. It is employed by almost all the Linux sysadmins and although Windows users are more acquainted with Remote Desktop Protocol (RDP), many of Window sysadmins also use SSH instead of RDP, the reason being its Raw power.

RDP provides full graphical remote control of a Windows computer to its users along with access to the regular Windows desktop through keyboard and mouse, whereas SSH, which is comparatively more genric, allows user to run almost every program remotely which further lets him administer the system automatically from a distance through pre-written scripts or by entering commands live, it also allows user to do both simultaneously.

Resultantly, cybercriminals who somehow can get access to a user's SSH password can also access his system, if not the entire network.

Network tunneling is another feature provided by SSH, wherein, users build an encrypted network connection between multiple computers, they start from one computer to another and extends that connection to a third system to carry out the online work.

SSH server also acts as a special-purpose VPN or encrypting proxy when it allows users to redirect network traffic when they are on the go.

Therefore, criminals who have access to any user's SSH password can use his server as the basis for his future attacks and the victims would be blaming the owner of the server.

Now, unfortunately, people have an SSH server at their home even if they don't realize it as home routers have a pre-configured SSH server which is placed for administrative reasons.

While hacking, cybercriminals do not differentiate between the SSH servers manages by users themselves and those managed by their ISP's, they go on exploiting regardless, as these servers can potentially allow them to breach data and make a profit via reselling it.

Users are advised to take the time to understand and get familiar with their router's configuration settings, in the cases where it is not managed by ISP. Furthermore, turn off all the features you don't require and also the ones you are not certain about. Lastly, ensure that you are using the latest version.





Bug in Microsoft RDP allows hackers perform WannaCry level attack


A critical remote execution vulnerability in Microsoft remote desktop services enables let attackers compromise the vulnerable system with WannaCry level malware.

Microsoft recently fixed this RCE vulnerability in Remote Desktop Services – formerly known as Terminal Services, and it’s affected some of the old version of Windows.

A WannaCry attack was one of the notorious cyber attacks in this decade, and it shut down million of computer around the world by exploiting the vulnerability in the RDP protocol.

In this case, Remote Desktop Protocol (RDP) itself is not vulnerable, but attackers need to perform pre-authentication, and it doesn’t require user interaction.

This vulnerability didn’t have any exploit at this time, but in the future, an attacker will create a malware that exploits this vulnerability in a similar way of WannaCry attack.

Vulnerable in-support systems include Windows 7, Windows Server 2008 R2, and Windows Server 2008 and also out of support versions Windows 2003 and Windows XP.

3 Million Endpoints are Vulnerable to This RCE Bug

Initially, an unauthenticated attacker will send the specially crafted malicious request to the vulnerable systems after they establish a connection through RDP.

According to Microsoft, This vulnerability is pre-authentication and requires no user interaction. An attacker who successfully exploited this vulnerability could execute arbitrary code on the target system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

An Independent researcher Kevin Beaumont said, based on the Shodan search engine, around 3 million RDP endpoints are directly exposed to the internet.

“There is partial mitigation on affected systems that have Network Level Authentication (NLA) enabled. The affected systems are mitigated against ‘wormable’ malware or advanced malware threats that could exploit the vulnerability, as NLA requires authentication before the vulnerability can be triggered.” Microsoft said.

According to Simon Pope, Director of Incident Response, Microsoft Security Response Center (MSRC) “Customers running Windows 8 and Windows 10 are not affected by this vulnerability”.