Threats Facing The Server, Workstations, And Website

Despite the presence of network security devices such as firewalls and other security appliances, today's corporate networks are still vulnerable to both internal and external attacks by hackers intent on creating havoc. By proactively

IS355_BestW5Assignment Lab #6 – Report file Developing a Risk – Mitigation Plan Outline for an IT Infrastructure Course Name and Number: Risk Management IS355 Student Name: Sherry Best Instructor Name: Nicole Goodyear Lab Due Date: 2/13/2018 Risks, Threats, and Vulnerabilities Primary Domain Impacted Risk Impact/ Factor Unauthorized access from public Internet Remote Access Domain 1 User destroys data in application and deletes all files Systems/Application Domain 3

Buffer Overflow is where a program over runs the buffer’s boundary in RAM and over writes the adjacent memory. “This can be triggered by inputs that are designed to execute or alter the way the program operates. This may result in erratic program behaviour, including memory access errors, incorrect results, a crash, or a breach of system security. Thus, they are the basis of many software vulnerabilities and can be maliciously exploited.” [Accessed

Lab #1 – Part A – List of Risks, Threats, and Vulnerabilities Commonly Found in an IT Infrastructure

A buffer overflow attack is done by deliberately entering more data than a program was written to handle. Buffer overflow attacks exploit a lack of boundary checking on the size of input being stored in a buffer. The extra data will overflow the memory set aside to accept it and overwrite another region of memory that was meant to hold some of the program’s instructions. The effect is a cascade, which can eventually halt the application or the system it is running on. The newly introduced values can be new instructions, which could give the attacker control of the target computer depending on what was input. Just about every system is vulnerable to buffer overflows. For example, if a hacker sends an email to a Microsoft Outlook user using an address that is longer than 256 characters, he will force the buffer to overflow. The recipient wouldn’t even have to open the e-mail for this type of attack to be successful; the attack is successful as soon as the message is downloaded from the server. Microsoft quickly released a patch for this issue after it was discovered in October 2000 (James C. Foster, 2005)

Is an anomaly where a program while writing data to a buffer, overruns the buffers boundary and overwrites adjacent memory, this is a special case of violation of memory safety.

Network security is just as important as securing the company’s web site and related applications. Networks, because of the sensitive data they usually give access to, are one of the most targeted public faces of an organization. Here are the top 5 network security vulnerabilities that are often omitted from typical reviews, and some tips to avoid making the same mistakes:

Identification of an incident can be achieved by recognizing the symptoms of it. These can include any number of situations or circumstances, including unusual computer or network behavior, notification from an intrusion detection device, a review of system log files indicating unusual entries, loss of system connectivity and device malfunctions. It is essential that these symptoms be communicated to all users, for if they do not recognize it they cannot report it. Once a viable threat is identified, communicating and alerting to all that are currently or may be involved about the threat is essential for isolation and further infection.

Dougherty, C., Householder, A., & Houle, K. (2002). Computer attack trends challenge Internet security. Computer, 35(4), 0005-7.

The purpose of the report is to explore the current vulnerabilities in the information system network and outline potential

Dr. Blahblah has implemented a system with an 8-bit random canary that is used to detect and prevent stacke-based buffer overflow attacks. Describe an effective attack against Dr. Blahblah’s system and analyse its likelihood of success.

Computer security is a critical issue for nearly all businesses today. Threats to security have become more pervasive, more dangerous, and more damaging to the health of businesses. Being able to appropriately respond to a security breach is essential to the long-term success of any business. Incident response planning is necessary before an incident occurs. In their publication, Computer Security Incident Handling Guide (Special Publication 800-61, Revision 2), the National Institute of Standards and Technology (NIST) has made recommendations on the phases of incident response, what types of tools can be useful to a team responsible for incident response (IR), and what documentation is needed as part of the response. This paper discusses these topics as endorsed by NIST.

Security will always be a driving emphasis for the success of an organization. As technology continues to grow and develop, there is a greater need for understanding threat environments. The growing anxiety with security and privacy concerns make receiving a virus on a personal or company computer dangerous. It is vital that both individuals and organizations take the time to understand how to protect themselves from schemes used by hackers. It only takes one mistake for a hacker to have control of your computer. A proper understanding of security offers direction for improving business procedures and educating users of acceptable threat management and authentication practices. The management of network and application security

Modern businesses are faced with major security threats especially to their information systems. The complexity of systems has not helped in mitigating these threats. With the massive adaption of information systems within organizations, they have become the cornerstones for organizations and this has made the systems more vulnerable to sabotage and potential attacks. There are both external and internal threats to information systems, which can be accidental or intentional. The threats to information systems are multilayered, and they can affect a couple of components like networks, software applications, operating systems, intranet, internet, and wireless technologies.

Denial-of-service is an attack aimed to refuse access for legitimate users and disrupt service availability according to www.msdn.microsoft.com. This type of security threat according to www.tech.co.uk is rapidly increasing on the Internet due to open doors on Websites. By using the Internet, companies increase the risk of denial of service attack. Denial of service can also be caused by too many connected to a server at the same making run slow or unavailable to others. People who deliberately abuse a network server are often difficult to track down.