Unencrypted traffic between nodes when using WireGuard and L7 policies

Impact In Cilium clusters with WireGuard enabled and traffic matching Layer 7 policies: - Traffic that should be WireGuard-encrypted is sent unencrypted between a node's Envoy proxy and pods on other nodes. - Traffic that should be WireGuard-encrypted is sent unencrypted between a node's DNS prox...

CVE-2023-41332

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. In Cilium clusters where Cilium's Layer 7 proxy has been disabled, creating workloads with policy.cilium.io/proxy-visibility annotations in Cilium = v1.13 or io.cilium.proxy-visibility annotations in Cilium...

Code injection

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. In Cilium clusters where Cilium's Layer 7 proxy has been disabled, creating workloads with policy.cilium.io/proxy-visibility annotations in Cilium = v1.13 or io.cilium.proxy-visibility annotations in Cilium...

Specific Cilium configurations vulnerable to DoS via Kubernetes annotations

Impact In Cilium clusters where Cilium's Layer 7 proxy has been disabled, creating workloads with - policy.cilium.io/proxy-visibility annotations in Cilium = v1.13 - io.cilium.proxy-visibility annotations in Cilium = v1.12 causes the Cilium agent to segfault on the node to which the workload is...

CVE-2023-41332 Denial of service via Kubernetes annotations in specific Cilium configurations

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. In Cilium clusters where Cilium's Layer 7 proxy has been disabled, creating workloads with policy.cilium.io/proxy-visibility annotations in Cilium = v1.13 or io.cilium.proxy-visibility annotations in Cilium...

CVE-2023-41332 Denial of service via Kubernetes annotations in specific Cilium configurations

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. In Cilium clusters where Cilium's Layer 7 proxy has been disabled, creating workloads with policy.cilium.io/proxy-visibility annotations in Cilium = v1.13 or io.cilium.proxy-visibility annotations in Cilium...

CVE-2023-41332

CVE-2023-41332 affects Cilium’s eBPF dataplane. When the Layer 7 proxy is disabled, workloads annotated with policy.cilium.io/proxy-visibility (>= v1.13) or io.cilium.proxy-visibility (

Microsoft Response to Layer 7 Distributed Denial of Service (DDoS) Attacks

Summary Beginning in early June 2023, Microsoft identified surges in traffic against some services that temporarily impacted availability. Microsoft promptly opened an investigation and subsequently began tracking ongoing DDoS activity by the threat actor that Microsoft tracks as Storm-1359. Thes...

レイヤー7の分散型サービス拒否 (DDoS) 攻撃に対するマイクロソフトの対応について

本ブログは、Microsoft Response to Layer 7 Distributed Denial of Service DDoS Attacks の抄訳版です。最新の情報は原文を参照してください。...

Microsoft Response to Layer 7 Distributed Denial of Service (DDoS) Attacks

Summary Summary Beginning in early June 2023, Microsoft identified surges in traffic against some services that temporarily impacted availability. Microsoft promptly opened an investigation and subsequently began tracking ongoing DDoS activity by the threat actor that Microsoft tracks as...

The Global DDoS Threat Landscape – November 2022

Every month in this space, we will post the Global DDoS Threat Landscape blog on behalf of the Imperva Threat Research team. As DDoS attacks continue to pose a significant risk to businesses, it is critical that we regularly communicate our Threat Research team’s findings to help the cybersecurit...

The Global DDoS Threat Landscape – October 2022

Every month in this space, we will post the Global DDoS Threat Landscape blog on behalf of the Imperva Threat Research team. As DDoS attacks continue to pose a significant risk to businesses it is critical that we regularly communicate our Threat Research team’s findings to help the cybersecurity...

The Global DDoS Threat Landscape – September 2022

Every month in this space, we will post the State of the Global DDoS Threat Landscape blog on behalf of the Imperva Threat Research team. As DDoS attacks become more frequent, varied, and sophisticated, it is critical that we regularly communicate the Imperva Threat Research team’s findings and...

Google Fended Off Largest Ever Layer 7 DDoS Attack

By Waqas According to Google, the geographic distribution of the DDoS attack suggests that it might have been launched through… This is a post from HackRead.com Read the original post: Google Fended Off Largest Ever Layer 7 DDoS Attack...

Layer 7 DDoS Attacks: ❗️ Methods and Ways of Mitigation

The web has been the greatest type of development in the 21st century. It has uncovered the whole world to more current prospects and more effective methods of living. Today, we have various sites, online stores, online papers, etc. Essentially everything is online nowadays. Be that as it may, th...

Imperva mitigated its largest attack as a provider of DDoS protection

In July, Imperva mitigated its largest attack as a provider of DDoS protection, and one of the largest DDoS attacks so far in 2021. The attack lasted for 40 minutes and generated a massive throughput of 1.02 terabytes per second Tbps and 155 million packets per second Mpps. Imperva also mitigated...

Cilium - eBPF-based Networking, Security, And Observability

Cilium is open source software for providing and transparently securing network connectivity and loadbalancing between application workloads such as application containers or processes. Cilium operates at Layer 3/4 to provide traditional networking and security services as well as Layer 7 to...

Command Execution Vulnerability in WIFISKY Layer 7 Flow Control Routers

Shenzhen Airspace Technology Co., Ltd "Airspace Technology" is a global network communication equipment supplier with its roots in Shenzhen. A command execution vulnerability exists in the WIFISKY 7-layer flow control router. An attacker can exploit this vulnerability to gain control of the serve...

Nfstream - A Flexible Network Data Analysis Framework

nfstream is a Python package providing fast, flexible, and expressive data structures designed to make working with online or offline network data both easy and intuitive. It aims to be the fundamental high-level building block for doing practical, real world network data analysis in Python...

Imperva Blocks Our Largest DDoS L7/Brute Force Attack Ever (Peaking at 292,000 RPS)

Imagine you’re a developer building a new web application. You’ve followed all of the security best practices, hired a reputable penetration testing company before launch, and gone through extensive bug fixing to remove any vulnerabilities. However, would you be confident that your application...