Siemens SIMATIC S7-400 PN CPUs 6.0.1 and 6.0.2 ICMP Packets DOS

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Remote Command Execution

kernel-rt is vulnerable to remote command execution. The vulnerability exists as a brute-force attack can be used to retrieve a cookie which can be used to execute SysRq commands via ICMP Echo Request packets...

Intelbras IWR 3000N - Denial of Service (Remote Reboot) Vulnerability

Exploit for hardware platform in category web applications /bin/bash PoC based on CVE-2019-11415 created by Social Engineering Neo. Credit: https://1.337.zone/2019/04/08/intelbras-iwr-3000n-any-version-dos-on-malformed-login-request/ A malformed login request allows remote attackers to cause a...

TP-Link Routers Vulnerable to Zero-Day Buffer Overflow Attack

Two models of TP-Link’s budget routers are vulnerable to zero-day flaws that allow attackers to take control of both. The routers in question are models TP-Link WR940N and TL-WR941ND, according IBM Security, which found the bugs and posted a technical analysis on its discoveries on Monday. “In th...

Troubleshooting NSM Virtualization Problems with Linux and VirtualBox

I spent a chunk of the day troubleshooting a network security monitoring NSM problem. I thought I would share the problem and my investigation in the hopes that it might help others. The specifics are probably less important than the general approach. It began with ja3. You may know ja3 as a set ...

PT-2019-2940

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 5.1.7 Description The issue is related to the Linux kernel's handling of IP ID values for connection-less protocols, such as UDP and ICMP. An attacker can track a device by exploiting hash collisions in the...

SolarWinds Network Performance Monitor ICMP Detection

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PT-2019-2807

Name of the Vulnerable Software and Affected Versions Linux kernel versions 4.1 through 5.0.7 Description The issue is related to the lack of protection for internal data in the Linux kernel's net hash mix function. This can be exploited by a remote attacker to disclose protected information...

BoNeSi - The DDoS Botnet Simulator

BoNeSi , the DDoS Botnet Simulator is a Tool to simulate Botnet Traffic in a testbed environment on the wire. It is designed to study the effect of DDoS attacks. What traffic can be generated? BoNeSi generates ICMP, UDP and TCP HTTP flooding attacks from a defined botnet size different IP...

Linux: Log non-standard ICMP messages

To reduce logfile size, it is possible to ignore ICMP messages that do not match standards. This script tests whether the Linux host is configured to ignore non-standard ICMP messages. SPDX-FileCopyrightText: 2019 Greenbone AG Some text descriptions might be excerpted from a referenced sources, a...

Linux: ICMP Redirect (send)

ICMP Redirects are used to update a hosts routing information, if e.g. an alternative and possible more direct route is available. If the host does not act as a router, ICMP Redirects are not needed. Further more, an attacker could use corrupt routing to have users access a system set up by the...

Linux: ICMP Redirect (accept)

ICMP Redirects are used to update a hosts routing information, if e.g. an alternative and possible more direct route is available. If the host does not act as a router, ICMP Redirects are not needed. Further more, an attacker could use corrupt routing to have users access a system set up by the...

Linux: Broadcast ICMP echo requests

Broadcast ICMP echo requests are used by the ping command to find all hosts on the network or subnet. An attacker can use Broadcast ICMP echo requests for a DoS/DDoS attack on the network. This script tests whether the Linux host is configured to ignore Broadcast ICMP echo requests...

Linux: Secure ICMP Redirect (accept)

Secure ICMP Redirects, like normal ICMP Redirects, are used to update a hosts routing information. But Secure ICMP Redirects come from the gateways listed as default gateways and though are known to the system. An attacker could compromise known gateways to gain access to the system. This script...

Denial Of Service (DoS)

kernel-rt is vulnerable to denial of service DoS attacks. The vulnerability exists through a race condition in the inetfragintern function in net/ipv4/inetfragment.c in the Linux kernel through 3.13.6 allows remote attackers to cause a denial of service use-after-free error or possibly have...

Denial Of Service

The net-snmp is susceptible to denial of service DoS. The attacker can input a malicious message for each ICMP message type to the decodeicmpmsg function in the /proc/net/snmp file, causing the snmpd to crash...

PT-2018-2333

Name of the Vulnerable Software and Affected Versions Astra Linux iputils affected versions not specified Description The issue is related to the iputils utility in Astra Linux, which lacks a restriction on using the -p option. This could allow a remote attacker to bypass access control rules by...

Design/Logic Flaw

D-Link DCS-825L devices with firmware 1.08 do not employ a suitable mechanism to prevent denial-of-service DoS attacks. An attacker can harm the device availability i.e., live-online video/audio streaming by using the hping3 tool to perform an IPv4 flood attack. Verified attacks includes SYN...

CVE-2018-18442

D-Link DCS-825L devices with firmware 1.08 do not employ a suitable mechanism to prevent denial-of-service DoS attacks. An attacker can harm the device availability i.e., live-online video/audio streaming by using the hping3 tool to perform an IPv4 flood attack. Verified attacks includes SYN...

CVE-2018-18442

CVE-2018-18442 affects the D-Link DCS-825L (firmware 1.08). The vulnerability is a DoS due to insufficient input validation in the firmware, enabling a remote attacker to disrupt device availability (e.g., live video/audio streaming) via crafted or flood-like network traffic (syn/udp/icmp, includ...