Amplified DDoS Attack | Breaking Cybersecurity News | The Hacker News

Details have emerged about a high-severity security vulnerability impacting Service Location Protocol ( SLP ) that could be weaponized to launch volumetric denial-of-service attacks against targets. "Attackers exploiting this vulnerability could leverage vulnerable instances to launch massive Denial-of-Service (DoS) amplification attacks with a factor as high as 2,200 times, potentially making it one of the largest amplification attacks ever reported," researchers Pedro Umbelino from Bitsight and Marco Lux from Curesec  said  in a report shared with The Hacker News. The vulnerability, which has been assigned the identifier CVE-2023-29552  (CVSS score: 8.6), is said to impact more than 2,000 global organizations and over 54,000 SLP instances that are accessible over the internet. This includes VMWare ESXi Hypervisor, Konica Minolta printers, Planex Routers, IBM Integrated Management Module (IMM), SMC IPMI, and 665 other product types. The top 10 countries with the most o

Distributed denial-of-service (DDoS) attacks leveraging a new amplification technique called TCP Middlebox Reflection have been detected for the first time in the wild, six months after the novel attack mechanism was presented in theory. "The attack […] abuses vulnerable firewalls and content filtering systems to reflect and amplify TCP traffic to a victim machine, creating a powerful DDoS attack," Akamai researchers  said  in a report published Tuesday. "This type of attack dangerously lowers the bar for DDoS attacks, as the attacker needs as little as 1/75th (in some cases) the amount of bandwidth from a volumetric standpoint," the researchers added. A distributed reflective denial-of-service ( DRDoS ) is a form of distributed denial-of-service (DDoS) attack that relies on publicly accessible UDP servers and bandwidth amplification factors (BAFs) to overwhelm a victim's system with a high volume of UDP responses. In these attacks, the adversary sends a

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Citrix has issued an emergency advisory warning its customers of a security issue affecting its NetScaler application delivery controller (ADC) devices that attackers are abusing to launch amplified distributed denial-of-service (DDoS) attacks against several targets . "An attacker or bots can overwhelm the Citrix ADC [Datagram Transport Layer Security] network throughput, potentially leading to outbound bandwidth exhaustion," the company  noted . "The effect of this attack appears to be more prominent on connections with limited bandwidth." ADCs are purpose-built  networking appliances  whose function is to improve the performance, security, and availability of applications delivered over the web to end-users. The desktop virtualization and networking service provider said it's monitoring the incident and is continuing to investigate its impact on Citrix ADC, adding "the attack is limited to a small number of customers around the world." The iss