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vulnerabilities

Severe Security Vulnerabilities Patched By Microsoft

Early last month, Microsoft released 13 security patches as part of Patch Tuesday.

While such security measures are usual, this one was particularly important because six of those patches were categorized as critical and require user attention to be put into place.

These six patches addressed programming flaws that had the potential to give cyber-attackers the means to gain full user rights in a wide array of Microsoft’s software programs. The remaining seven patches address the elevation of privileges, denial of service, and ways to bypass security features.

The programs that were at risk from these flaws included all supported versions of Microsoft Windows, the new Edge browser, Internet Explorer, Microsoft Office (including Services and Web Apps), Microsoft Server Software, Adobe Flash Player, and Microsoft .NET Framework.

According to Microsoft, these flaws were detected before any actual security breaches stemming from these issues actually occurred.

If they had not been discovered, cybercriminals may have been able to gain user rights to Microsoft programs via specially crafted websites from remote locations.

Microsoft strongly urges Windows Vista and later operating system users to ensure the latest updates have been installed, especially if they do not have their systems set for Automatic Updates.

Does Your Company Need An Internet Usage Policy?

Scott Blake is a Senior Network Engineer with Tech Experts.

With the growth and expansion of the Internet, it is important to make sure that your business has a policy in place to protect its assets.

Depending on your business, an Internet Usage Policy (IUP) can be long and drawn out or short and to the point.

An IUP will provide your employees with guidelines on what is acceptable use of the Internet and company network. IUPs not only protect the company, but also the employee.

Employees are informed and aware of what is acceptable when it comes to websites and downloading files or programs from the Internet.

When employees know there will be serious consequences for breaking the IUP, such as suspension or termination of employment, companies tend to notice a decrease in security risks due to employee carelessness.

You will need to make sure your IUP covers not only company equipment and your network, but also employee-owned devices such as smart phones and tablets. You may be surprised at the number of employees that feel they do not have to follow the IUP because they are using their own device to surf or download from the Internet.

Make sure you address proper usage of company-owned mobile devices. Your business may have satellite employees or a traveling sales force. Even when they are away, they need to be aware they are still representatives of the business and must follow the business IUP.

After all, it would not go over well if your sales staff was giving a presentation to a prospective client and suddenly, “adult content” ads popped-up on the screen because one of your employees was careless in their web habits.

The downloading of files and programs is a security risk in itself. Private, internal company documents and correspondence downloaded from your company’s network can become public, causing unrepairable damage.

On the same thought, employees downloading from the Internet open your company’s network up to malware attacks and infections.

There are a lot of hackers that prey upon the absent-minded employee downloading a video or song file by hiding a piece of malware within the download. Once the malware makes it into your network, there’s no telling what damage it can cause.

As for non-work related use of the company network and Internet, make sure your employees know there is no expectation of personal privacy when using the company’s network and Internet connection.

Make it well-known that the network and Internet are in place to be used for work purposes only. Improper use of the network can reduce bandwidth throughout the company network.

This includes all mobile devices owned by the company. This way, your employees know that no matter where they are they still must follow the guidelines of the IUP.

Make sure all of your employees sign the IUP and fully understand what it is they are signing. Make sure you answer any and all questions they may have.

This will help clear up any confusion your employees may have. This way, there can be no excuses as to why the IUP was broken.

Whenever you update the IUP, make sure you have all of your employees sign and understand the new additions and/or changes to the IUP. It may seem like overkill, but you’ll be glad you did if you ever run into any violations of your company’s IUP.

For assistance in creating Internet Usage Policies or if you have any questions, call the experts at Tech Experts: (734) 457-5000.

Top Seven Network Attack Types So Far In 2015

Thomas Fox is president of Tech Experts, southeast Michigan’s leading small business computer support company.

There’s no doubt that small businesses are under attack from hackers and cyber-criminals. Typically, small companies have less secure networks and looser security standards, making them easy targets.

The latest Threat Report from McAfee Labs details the types of attacks against small businesses. The chart shows the most common network attacks detected in Q1 2015.

Denial of service attacks – 37%
A denial of service (DOS) attack attempts to make a resource, such as a web server, unavailable to users. These attacks are very common, accounting for more than one-third of all network attacks reviewed in the report.

A common approach is to overload the resource with illegitimate requests for service. The resource cannot process the flood of requests and either slows or crashes. [Read more…] about Top Seven Network Attack Types So Far In 2015

Major Microsoft Windows Vulnerability Discovered

Microsoft recently released details about the newest vulnerability (MS15-034) in the Windows HTTP stack’s armor. With other recent problems in Microsoft patches, the problem may have been downplayed a bit to save face. This vulnerability, however, is more serious than it initially seemed.

The MS15-034 vulnerability is widespread. Although Windows servers are most at risk, this problem affects most products that run Windows. The chink in question lies in the HTTP.sys component, which is a kernel-mode device driver that processes HTTP requests quickly.

This component has been an integral part of Windows since 2003 and is present in all versions up to Windows 8.1. This means that any device running Windows without up-to-date patches is at risk.

It isn’t difficult to exploit this vulnerability. The only thing Microsoft is divulging about how MS15-034 can be used to compromise devices is that it requires “a specially crafted HTTP request.” It seems that this information is deliberately vague.

All one has to do is send an HTTP request with a modified range header, and access to data is granted, although sometimes limited. A similar attack was documented in 2011 on the Apache HTTPD Web server that was later patched.

There is good news though. As in other areas of life, prevention is far more effective than trying to deal with a problem’s aftermath. It isn’t difficult to protect your devices from the MS15-034 vulnerability.

The first step is to ensure that your server has the latest updates that include the patch to fix the problem.

If your server hosts a publicly accessible application, you can verify your server’s vulnerability by going to https://lab.xpaw.me/MS15-034, enter your server’s URL, and press the Check button for an instant report on your site.

If you then see the report that the website has been patched, you’re safe; otherwise, that particular system will need to be patched.

Online Safety: Is Your Website Secure?

Michael Menor is Vice President of Support Services for Tech Experts.

For all too many companies, it’s not until after a breach has occurred that web security becomes a priority.

While more than a few examples of recent breaches may leap to mind, know that these aren’t exclusive to big name retailers who accept credit cards. If you have a website for your business, you may be at risk.

As more and more business is done using the World Wide Web, websites themselves have become increasingly attractive to cybercriminals.

Websites are such a lucrative target for an attack because not only are there so many sites to attack, but an overwhelming majority of all websites can be easily exploited by some of the most common vulnerabilities.

Attackers, no longer driven by notoriety and ideology, have focused more on techniques that allow them to profit from their illegal activities.

Exploited sites allow the theft of credit card data, financial information, identities, intellectual property, and anything else cyber criminals can get their hands on.

The integrity of the company’s internal network can be affected as well if the website provides access to it.

There are many online services that allow anyone to create a webpage in under ten minutes.

Unfortunately, these quick solutions also make it easier for attackers. Without proper training and knowledge, many of these sites are left with multiple vulnerabilities. A few of these vulnerabilities will be discussed.

The Heartbleed Bug is a vulnerability that allows attackers to obtain confidential data such as usernames, passwords, emails, and even proprietary company data and communications.

Even if you think you might be protected because you use encrypted forms of communication, you’re not safe. Attackers will be able to eavesdrop into your communications and steal data from beneath you.

Like Heartbleed, one of the most prominent vulnerabilities affecting web applications is cross site scripting (XSS).

This vulnerability can allow an attacker to hijack web communications. The attacker may target a vulnerable website by tricking the user into submitting sensitive information or performing a privileged action within the target website’s web controls.

Application Denial of Service attacks have rapidly become a commonplace threat for doing business on the Internet — more proof that Web application security is now more critical than ever. Denial of Service attacks can result in significant loss of service, money and reputation for organizations.

Typically, the loss of service is the inability of a particular network service, such as e-mail, to be available or the temporary loss of all network connectivity and services.

Denial of Service attacks are centered on the concept that by overloading a target’s resources, the system will ultimately crash.

An HTTP Denial of Service attack can also destroy programming and files in affected computer systems.

In some cases, HTTP DoS attacks have forced Web sites accessed by millions of people to temporarily cease operation.

Websites that can be compromised pose a serious risk and thus serious preventative measures should be taken to combat it.

Scrambling to fix the problem after the fact is costly, stressful, and can potentially result in legal action. Breaches also cause damage to your company’s image and brand, which may be permanent.

Know your vulnerabilities and don’t rely on ten-minute-or-less website creators to keep you safe.

If it’s too good to be true, it probably is.