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 TitleDate AddedCompany
whitepaper The Real Cost of Spam for City Workers Adds Up Fast2007-08-15 Red Condor
  The City of Petaluma & the City of Santa Rosa needed to deploy solutions that are economic and help increase employee productivity, maintaining efficiency, seamless protection against spam. The City deployed Red Condor Message Assurance Gateway which blocks malicious email before it reaches the customer network. It provides simultaneous inbound and outbound security. It removes the burden of email-borne DoS (Denial of Service) and DHA (Directory Harvest Attacks) on the email server and network connection. And it's a fully managed, network-resilient system with integrated emergency spooling of inbound email.

Tags: Intrusion - Tampering, LAN - WAN		   
whitepaper Better Security through Access-List Management2007-08-09 Global Knowledge
  Security concerns are becoming more common in every environment, regardless how big or small the network. You can get limited security with the access-list on your routers. This paper gives you the basics of access-list with implementations examples as covered in the CCNA certifications.

Tags: Intrusion - Tampering, Intrusion - Tampering, Security Administration		   
whitepaper Cisco Security Advisory: Denial of Service Vulnerability in Cisco Wide Area Application Services (WAAS) Software2007-07-18 Cisco Systems
  The Cisco Wide Area Application Services (WAAS) software contains a Denial of Service (DoS) vulnerability that may cause some devices that run WAAS software (WAE appliance and NM-WAE 502 module) to stop processing all types of traffic, including data traffic and management traffic. This condition may occur if a device running WAAS software is configured for Edge Services, which utilizes Common Internet File System (CIFS) optimization and receives a flood of TCP SYN packets on port 139 or 445. Cisco has made free software available to address this vulnerability for affected customers. Workarounds are available to mitigate the effects of this vulnerability.

Tags: Intrusion - Tampering		   
whitepaper A Denial-of-Service Resistant DHT2007-07-17 Johns Hopkins University
  This paper considers the problem of designing scalable and robust information systems based on multiple servers that can survive even massive Denial-of-Service (DoS) attacks. More precisely, the paper focusing on designing a scalable Distributed Hash Table (DHT) that is robust against so-called past insider attacks. In a past insider attack, an adversary knows everything about the system up to some time point t0 not known to the system. After t0, the adversary can attack the system with a massive DoS attack in which it can block a constant fraction of the servers of its choice.

Tags: Security Administration, Intrusion - Tampering		   
whitepaper Impact of Denial of Service Attacks on Ad Hoc Networks2007-07-16 Institute of Electrical and Electronics Engineers
  Significant progress has been made towards making ad hoc networks secure and DoS resilient. However, little attention has been focused on quantifying DoS resilience: Do ad hoc networks have sufficiently redundant paths and counter-DoS mechanisms to make DoS attacks largely ineffective? Or are there attack and system factors that can lead to devastating effects? This paper designs and study DoS attacks in order to assess the damage that difficult-to-detect attackers can cause.

Tags: Intrusion - Tampering		   
whitepaper Design and Development of Proactive Models for Mitigating Denial-of-Service and Distributed Denial-of-Service Attacks2007-07-01 National Institute of Technology Karnataka
  Denial-of-Service (DoS) attacks, orchestrated by a single host or multiple hosts in a coordinated manner, have become an increasingly frequent disturbance in today's Internet. Generally, attackers launch Distributed Denial-of-Service (DDoS) attacks by directing a massive number of attack sources to send useless traffic to the victim. The victim's services are disrupted when its host or network resources are occupied by the attack traffic. The threat of DDoS attacks has become even more severe as attackers can compromise a huge number of computers using vulnerabilities in popular operating systems. This paper deals with proactive models for mitigating DoS and DDoS attacks.

Tags: Intrusion - Tampering		   
whitepaper Novel Mechanism to Defend DDoS Attacks Caused by Spam2007-07-01 Hannam university
  Corporate mail services are designed to perform better than public mail services. Fast mail delivery, large size file transfer as an attachments, high level spam and virus protection, commercial advertisement free environment are some of the advantages worth to mention. But these mail services are frequent target of hackers and spammers. Distributed Denial of service attacks are becoming more common and sophisticated. The researchers have proposed various solutions to the DDOS attacks. Can they stop these kinds of attacks with available technology? These days the DDoS attack through spam has increased and disturbed the mail services of various organizations. Spam penetrates through all the filters to establish DDoS attacks, which causes serious problems to users and the data. This paper proposes a novel approach to defend DDoS attack caused by spam mails.

Tags: Intrusion - Tampering, Intrusion - Tampering		   
whitepaper A CPU Usage Control Mechanism for Processes With Execution Resource for Mitigating CPU DoS Attack2007-07-01 Okayama University
  In a ubiquitous environment, the hardware resources are limited; thus, an appropriate resource management mechanism is required for guaranteeing its processing activity. However, most Operating Systems (OSs) lack an access control mechanism for CPU resources to guarantee satisfactory processing and to safeguard the system from malicious attacks that affect the CPU resources, resulting in Denial of Service (DoS). Access control is not intended for CPU resources, which are important for the execution of a program. As a result, OSs cannot control the usage ratio of CPU resources. This paper proposes an access control model for CPU resources based on an execution resource. The proposed model can control the usage ratio of CPU resources appropriately for each user and each program domain.

Tags: Intrusion - Tampering		   
whitepaper A BitTorrent-Driven Distributed Denial-of-Service Attack2007-06-24 University of Central Florida
  BitTorrent is a popular peer-to-peer file-sharing protocol that utilizes a central server, known as a "Tracker", to coordinate connections between peers in a "Swarm", a term used to describe a BitTorrent ad-hoc file sharing network. The tracker of a swarm is specified by the original file distributor and trusted unconditionally by peers in the swarm. This central point of control provides an opportunity for a file distributor to deploy a modified tracker to provide peers in a swarm with malicious coordination data, directing peer connection traffic toward an arbitrary target machine on an arbitrary service port.

Tags: Intrusion - Tampering		   
whitepaper A Middleware System for Protecting Against Application Level Denial of Service Attacks0000-00-00 IBM
  Off late, there has been an increase in the number of Denial of Service (DoS) attacks against online services and web applications either for extortion reasons, or for impairing and even disabling the competition. These DoS attacks have increasingly targeted the application level. Application level DoS attacks emulate the same request syntax and network level traffic characteristics as those of legitimate clients, thereby making the attacks much harder to be detected and countered. Moreover, such attacks usually target bottleneck resources such as disk bandwidth, database bandwidth, and CPU resources. This paper proposes server-side middleware to counter application level DoS attacks.

Tags: Intrusion - Tampering, Software Development Tools