Tag Archives: whitepapers

Guess what? You should patch Exim again!

Hot on the heels of a patch for a critical RCE Exim flaw comes another one that fixes a denial of service (DoS) condition (CVE-2019-16928) that could also be exploited by attackers to pull off remote code execution. With no mitigations available at this time, Exim maintainers urge admins to upgrade to version 4.92.3, which has been released on Sunday. About Exim and the flaw (CVE-2019-16928) According to E-Soft, Exim is the most widely used … More ? The post Guess what? You should patch Exim again! appeared first on Help Net Security .

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Guess what? You should patch Exim again!

Magic Transit allows customers to send any packet of data across Cloudflare’s network

Cloudflare, a leading Internet security, performance, and reliability company, announced Magic Transit, a product that extends the benefits of Cloudflare’s network to customers’ on-premise and data center networks. Magic Transit allows customers to send any packet of data, of any protocol, across Cloudflare’s network. Magic Transit deployed in front of an enterprise network protects it from DDoS attack and enables provisioning of a full suite of virtual network functions, including IP packet filtering and firewalling, … More ? The post Magic Transit allows customers to send any packet of data across Cloudflare’s network appeared first on Help Net Security .

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Magic Transit allows customers to send any packet of data across Cloudflare’s network

Global communications service providers struggling to fend off growing number of DDoS attacks

Global communications service providers, whose businesses are predicated on continuous availability and reliable service levels, are struggling to fend off a growing number of DDoS attacks against their networks. A lack of timely and actionable intelligence is seen as a major obstacle to DDoS protection, according to A10 Networks. The critical need for DDoS protection The A10 Networks study conducted by the Ponemon Institute highlights the critical need for DDoS protection that provides higher levels … More ? The post Global communications service providers struggling to fend off growing number of DDoS attacks appeared first on Help Net Security .

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Global communications service providers struggling to fend off growing number of DDoS attacks

Microsoft wants to improve routing security

The Mutually Agreed Norms for Routing Security (MANRS) initiative, supported by the Internet Society, announced that Microsoft has joined the program whose primary objective is to reduce the most common threats to the Internet’s routing system. Routing security is vital to the future and stability of the Internet. Last year alone, there were 12,600 routing outages or incidents such as route hijacking and leaks that led to large-scale Distributed Denial of Service (DDoS) attacks, stolen … More ? The post Microsoft wants to improve routing security appeared first on Help Net Security .

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Microsoft wants to improve routing security

Attackers actively exploiting Atlassian Confluence and Oracle WebLogic flaws

Attackers are actively exploiting recently fixed vulnerabilities in Oracle WebLogic and the Widget Connector macro in Atlassian Confluence to deliver ransomware, mine cryptocurrency and make the compromised machines participate in DDoS attacks. The Oracle WebLogic attacks CVE-2019-2725 is a deserialization remote command execution vulnerability that affects all Oracle WebLogic versions that have two specific components enabled. It was publicly revealed on April 21 and Oracle published an out-of-band security fix for it on April 25. … More ? The post Attackers actively exploiting Atlassian Confluence and Oracle WebLogic flaws appeared first on Help Net Security .

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Attackers actively exploiting Atlassian Confluence and Oracle WebLogic flaws

The latest DDoS attacks are mostly multi-vector and morph over time

DDoS attacks continue to be an effective means to distract and confuse security teams while inflicting serious damage to brands, according to Neustar. Also, when comparing Q1 2019 vs. Q1 2018, the company has registered a 200 percent increase of attacks on directly provisioned customers. Report findings The largest attack size observed by them in Q1 2019 was 587 Gbps in volume, and the longest duration for a single attack was nearly a day and … More ? The post The latest DDoS attacks are mostly multi-vector and morph over time appeared first on Help Net Security .

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The latest DDoS attacks are mostly multi-vector and morph over time

The correlation between DDoS attacks and cryptomining

There is a direct correlation between cryptocurrency and DDoS attacks. As the price of cryptocurrency dropped in 2018, leading to decreased profits from cryptomining, hackers on the black market began to divert prime botnet resources to DDoS attack activities, which increased month by month. DDoS attacks in 2018 In NSFOCUS’ 2018 DDoS Attack Landscape report, NSFOCUS analyzed the threat landscape after a landmark year of technological growth related to cloud computing, big data, artificial intelligence … More ? The post The correlation between DDoS attacks and cryptomining appeared first on Help Net Security .

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The correlation between DDoS attacks and cryptomining

Average DDoS attack sizes decrease 85% due to FBI’s shutdown of DDoS-for-hire websites

The FBI’s shutdown of the 15 largest distributed denial-of-service (DDoS) for hire vendors (booters) reduced the overall number of attacks worldwide by nearly 11 percent compared to the same period last year. Along with the fewer total attacks, the average size decreased by 85 percent as did the maximum attack size by 24 percent, indicating the FBI crackdown was effective in reducing the global impact of DDoS attacks. However, booter websites are poised to make … More ? The post Average DDoS attack sizes decrease 85% due to FBI’s shutdown of DDoS-for-hire websites appeared first on Help Net Security .

IoT devices using CoAP increasingly used in DDoS attacks

IoT devices in synchronised attacks on targets represent a growing part of global Distributed Denial of Service (DDoS) weapon arsenals. There is a significant potential for attackers to use an IoT-related protocol, the Constrained Application Protocol (CoAP), deployed on IoT devices to marshal attacks. The A10 Networks report on the state of DDoS weapons in the first quarter of 2019 examines the types of weapons and attacks being used and where they are coming from. … More ? The post IoT devices using CoAP increasingly used in DDoS attacks appeared first on Help Net Security .

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IoT devices using CoAP increasingly used in DDoS attacks

Average DDoS attack volumes grew by 194% in 12 months

The volume and complexity of DDoS attacks continued to grow in Europe during the final quarter of 2018, according to Link11. While Link11’s Security Operations Center (LSOC) registered 13,910 attacks in Q4 (12.7% down compared to Q3), the average attack volume grew by 8.7% to 5Gbps, and 59% of attacks used multiple attack vectors. Key findings of Link11’s Q4 DDoS report include: Average attack volumes grew by 194% in 12 months: In Q4 2018, average … More ? The post Average DDoS attack volumes grew by 194% in 12 months appeared first on Help Net Security .

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Average DDoS attack volumes grew by 194% in 12 months