Design/Logic Flaw

Multiple vulnerabilities in the Zone-Based Firewall feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause the device to reload or stop forwarding traffic through the firewall. The vulnerabilities are due to incomplete handling of Layer 4 packets through the...

CVE-2020-3421 Cisco IOS XE Software Zone-Based Firewall Denial of Service Vulnerabilities

Multiple vulnerabilities in the Zone-Based Firewall feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause the device to reload or stop forwarding traffic through the firewall. The vulnerabilities are due to incomplete handling of Layer 4 packets through the...

CVE-2020-3421 Cisco IOS XE Software Zone-Based Firewall Denial of Service Vulnerabilities

Multiple vulnerabilities in the Zone-Based Firewall feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause the device to reload or stop forwarding traffic through the firewall. The vulnerabilities are due to incomplete handling of Layer 4 packets through the...

Cisco IOS XE Software Zone-Based Firewall Denial of Service Vulnerabilities

Multiple vulnerabilities in the Zone-Based Firewall feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause the device to reload or stop forwarding traffic through the firewall. The vulnerabilities are due to incomplete handling of Layer 4 packets through the...

CentOS 7 : keepalived (CESA-2019:0022)

An update for keepalived is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability fro...

Summer SOTI - DDoS by the numbers

Time for a Change The State of the Internet / Security report has been the home for Akamai's research on DDoS, attack traffic and Internet threats for over three years. While the report has evolved and expanded its scope considerably over that time, the content and how it's presented have only se...

Security feature bypass

A vulnerability in traffic-monitoring functions in Cisco Web Security Appliance WSA could allow an unauthenticated, remote attacker to circumvent Layer 4 Traffic Monitor L4TM functionality and bypass security protections. The vulnerability is due to a change in the underlying operating system...

Cisco Web Security Appliance Layer 4 Traffic Monitor Security Bypass Vulnerability

A vulnerability in traffic-monitoring functions in Cisco Web Security Appliance WSA could allow an unauthenticated, remote attacker to circumvent Layer 4 Traffic Monitor L4TM functionality and bypass security protections. The vulnerability is due to a change in the underlying operating system...

The Forrester Wave Ranks Imperva as a Leader for DDoS Mitigation Providers

Imperva has tracked the DDoS threat for some time now. Back in 2014 we saw the rise of DDoS botnets. In 2015, we revealed one of the first IoT-based DDoS attacks. Last year, we predicted and then documented one of the largest botnet-based DDoS attacks. DDoS mitigation, as it turns out, is the...

Visualize network Topologies From pcap Files: PcapViz

PcapViz visualizes network topologies and provides graph statistics based on pcap files. It should be possible to determine key topological nodes or data exfiltration attempts more easily. Features Draw network topologies Layer 2 and communication graphs Layer 3 and 4 Network topologies contain...

PcapViz - Visualize Network Topologies and Collect Graph Statistics Based on PCAP Files

PcapViz visualizes network topologies and provides graph statistics based on pcap files. It should be possible to determine key topological nodes or data exfiltration attempts more easily. Features Draw network topologies Layer 2 and communication graphs Layer 3 and 4 Network topologies contain...

Edit and Replay Network Traffic: tcpreplay

Edit and Replay Network Traffic Tcpreplay is a suite of GPLv3 licensed utilities for UNIX and Win32 under Cygwin operating systems for editing and replaying network traffic which was previously captured by tools like tcpdump and Ethereal / Wireshark . It allows you to classify traffic as client o...

UPNPD M-SEARCH - ssdp:discover Reflection Denial of Service

UPNPD M-SEARCH - ssdp:discover Reflection Denial of Service !/usr/bin/perl upnpd M-SEARCH ssdp:discover reflection Copyright 2015 c Todor Donev [email protected] http://www.ethical-hacker.org/ https://www.facebook.com/ethicalhackerorg The SSDP protocol can discover Plug & Play devices, with...

Design/Logic Flaw

The Layer 4 Redirect L4R feature in Cisco IOS XE 2.x and 3.x before 3.10.4S, 3.11 before 3.11.3S, 3.12 before 3.12.2S, 3.13 before 3.13.1S, 3.14 before 3.14.0S, and 3.15 before 3.15.0S allows remote attackers to cause a denial of service device reload via malformed 1 IPv4 or 2 IPv6 packets, aka B...

Security Best Practice: Familiarize Yourself with the Packet Sanity Protection

The Packet Sanity protection performs several Layer 3 and Layer 4 sanity checks. These include verifying packet size, UDP and TCP header lengths, dropping IP options and verifying the TCP flags.Numerous types of attacks may be hidden in fragmented packets...