After the discovery of the issue, Microsoft quickly released a security update for Windows Server. The flaw was found on Windows Active Directory Certificate Services. These servers are used by enterprises to issue digital certificates for computers or servers to identify them as belonging to a certain domain. A bug in Microsoft’s software could be exploited by hackers to spoof domain computers. By signing fake messages with a trusted certificate, an attacker could trick users into revealing confidential information such as usernames and password. Microsoft rated the critical severity of the flaw and promised to release a security update as soon as possible. In the meantime, enterprises are advised to review the health of Active Directory Certificate Services servers. Any servers with an outdated or malfunctioning server role should be fixed immediately.

Microsoft releases Patch Tuesday updates and more

Patch Tuesday is one of the two days where Microsoft releases security updates for Windows. This month, Patch Tuesday was released on the 4th of July. Along with this release, Microsoft also released an update for Internet Explorer 11 which fixed a critical vulnerability in the software. The flaw could allow remote code execution by exploiting a memory corruption bug. Additionally, Microsoft released an update for Adobe Reader and Acrobat that fixed vulnerabilities in their software that affected all versions of the programs. These updates are part of Microsoft’s commitment to keeping its customers safe from cyber attacks on their computers.

How Do Certificate Authorities Work?

Certificate authorities are digital certificates that allow access to a trusted system or website. Certificate authorities validate the integrity of the certificate, which means that as long as a certificate has not been tampered with, it can be trusted. For example, when you use an SSL certificate from Google on your web browser, you trust the certificate because it's signed by Google's Certificate Authority (CA).
Additionally, organizations typically use their own private CA to issue certificates for internal services or for service providers. The process is similar to how SSL certificates work in general; however, Microsoft uses Active Directory Certificate Services as its private CA.
The software bug on Windows Server could allow hackers to spoof domain computers and trick users into revealing confidential information. This flaw is being called critical because it could be exploited by hackers to sign fake messages with a trusted certificate.

How to Avoid Being Hacked?

It's important to check your Active Directory Certificate Services servers regularly. These servers are trusted by Windows users, so they are the first line of defense against a hack. If you identify any signs of tampering, make sure to contact Microsoft support. They can help you take care of the issue right away.
Enterprises should also review their security policies for each domain for potential vulnerabilities and implement them as soon as possible. It's best practice to be proactive about security, especially when it comes to technology that is critical for business success.
Be on the lookout for any signs of tampering from hackers, especially if you have a server with an expired or non-functioning role in Active Directory Certificate Services.

Windows Server Denial of Service (DoS)

Windows Server Denial of Service (DoS) is a type of denial-of-service attack that affects Windows machines. This form of attack is typically used to knock the target server offline by overloading it with requests for services or information. A DoS attack consists of a variety of techniques that flood the victim’s computer with network packets, saturating its bandwidth and using up all its processing power.
The attacker's goal is to make the victim's machine unavailable, so it can no longer complete its tasks.
This article provides an overview of information about DoS attacks and ways to prevent them from affecting your company.

Windows Remote Desktop Services

Windows Remote Desktop Services is an application that allows users to remotely access a computer using an internet connection. This application is installed alongside Microsoft's Hyper-V virtualization software and includes the ability to remotely access a computer without needing any additional client software.
It should be noted that this flaw could only be exploited if an attacker was able to gain a user's trust, in which they would then have the opportunity to use this remote desktop service. If a server is vulnerable, it is recommended that administrators patch these systems as soon as possible.


Published on: 10/11/2022 19:15:00 UTC
Last modified on: 10/11/2022 19:16:00 UTC