GO-2024-2657 Unencrypted traffic between nodes with WireGuard in github.com/cilium/cilium

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, and traffic that should be WireGuard-encrypted is sent unencrypted between a node's DNS proxy and...

Missing Encryption Of Sensitive Data

Cilium is vulnerable to Missing Encryption Of Sensitive Data. The vulnerability is due to WireGuard eligible traffic sent between a node's Envoy/DNS proxy and pods on other nodes being sent unencrypted when traffic matches Layer 7 policies. This issue can expose sensitive data as it travels betwe...

CVE-2024-28249

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.13.13, 1.14.8, and 1.15.2, in Cilium clusters with IPsec enabled and traffic matching Layer 7 policies, IPsec-eligible traffic between a node's Envoy proxy and pods on other nodes is sen...

CVE-2024-28250

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Starting in version 1.14.0 and prior to versions 1.14.8 and 1.15.2, In Cilium clusters with WireGuard enabled and traffic matching Layer 7 policies Wireguard-eligible traffic that is sent between a node's...

CVE-2024-28249 Cilium has possible unencrypted traffic between nodes when using IPsec and L7 policies

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.13.13, 1.14.8, and 1.15.2, in Cilium clusters with IPsec enabled and traffic matching Layer 7 policies, IPsec-eligible traffic between a node's Envoy proxy and pods on other nodes is sen...

CVE-2024-28249 Cilium has possible unencrypted traffic between nodes when using IPsec and L7 policies

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.13.13, 1.14.8, and 1.15.2, in Cilium clusters with IPsec enabled and traffic matching Layer 7 policies, IPsec-eligible traffic between a node's Envoy proxy and pods on other nodes is sen...

CVE-2024-28249 Cilium has possible unencrypted traffic between nodes when using IPsec and L7 policies

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.13.13, 1.14.8, and 1.15.2, in Cilium clusters with IPsec enabled and traffic matching Layer 7 policies, IPsec-eligible traffic between a node's Envoy proxy and pods on other nodes is sen...

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...