DOS

Pierluigi Paganini October 14, 2019
Talos experts found 11 flaws in Schneider Electric Modicon Controllers

Cisco Talos experts discovered nearly a dozen flaws affecting some of the models of Schneider Electric’s Modicon programmable logic controllers. Talos experts discovered 11 security flaws affecting some models of Schneider Electric’s Modicon programmable logic controllers. Affected models are Modicon M580, M340, BMENOC 0311, BMENOC 0321, Quantum, Premium, and Modicon BMxCRA and 140CRA. The unique […]

Pierluigi Paganini August 27, 2019
Code Execution and DoS flaw addressed in QEMU

The open-source emulator QEMU is affected by a flaw that could be exploited to trigger a (DoS) condition or gain arbitrary code execution. QEMU (short for Quick Emulator) is a free and open-source emulator that performs hardware virtualization. It emulates the machine’s processor through dynamic binary translation and provides a set of different hardware and device models for the machine, enabling it to run a […]

Pierluigi Paganini August 14, 2019
Flaws in HTTP/2 implementations expose servers to DoS attacks

Experts at Netflix and Google discovered eight denial-of-service (DoS) vulnerabilities affecting various HTTP/2 implementations. Researchers from Netflix and Google discovered eight denial-of-service (DoS) flaws affecting various HTTP/2 implementations. Some of the flawed implementations belong to tech giants such as Amazon, Apple, Facebook, and Microsoft. The security flaws affect the most popular web server software, including […]

Pierluigi Paganini June 26, 2019
Silex malware bricks thousands of IoT devices in a few hours

Security experts warn of a new piece of the Silex malware that is bricking thousands of IoT devices, and the situation could rapidly go worse. Akamai researcher Larry Cashdollar discovered a new piece of the Silex malware that is bricking thousands of IoT devices, over 2,000 devices have been bricked in a few hours and the […]

Pierluigi Paganini June 18, 2019
Multiple DoS vulnerabilities affect Linux and FreeBSD

Netflix researcher has identified several TCP networking vulnerabilities in FreeBSD and Linux kernels that could trigger a DoS condition. Jonathan Looney, a security expert at Netflix, found three Linux DoS vulnerabilities, two of them related to the minimum segment size (MSS) and TCP Selective Acknowledgement (SACK) capabilities, and one related only to MSS. The most severe […]

Pierluigi Paganini April 12, 2019
Siemens addressed several DoS flaws in many products

Siemens Patch Tuesday updates for April 2019 address several serious vulnerabilities, including some DoS flaws in many industrial products. Siemens has released Patch Tuesday updates that address several serious flaws including some DoS vulnerabilities. Siemens published six new advisories that cover a total of 11 vulnerabilities. One of the issues addressed by Siemens is a […]

Pierluigi Paganini April 07, 2019
Rockwell Automation fixes multiple DoS flaws in Stratix Switch introduced by Cisco Software

Rockwell Automation released updates for Allen-Bradley Stratix industrial switches that address several DoS flaws introduced by Cisco software. Rockwell Automation released security updates that address several DoS vulnerabilities in its Allen-Bradley Stratix industrial switches introduced by Cisco software. ICS-CERT and Rockwell Automation published three separate advisories to warn of the effects of the vulnerabilities introduced […]

Pierluigi Paganini April 06, 2019
DoS flaw in several MikroTik Routers exploited in attacks

A vulnerability could be exploited by attackers to trigger a denial-of-service (DoS) condition on devices running RouterOS. MikroTik routers made the headlines again, the company disclosed this week technical details about a year-old vulnerability that exposes the device to remote attacks. Attackers could exploit the vulnerability to trigger a denial-of-service (DoS) condition on devices running […]

Pierluigi Paganini March 07, 2019
Cisco security updates fix dozens of flaws in Nexus Switches

Cisco released security updates to address over two dozen serious vulnerabilities affecting the Cisco Nexus switches. Cisco released security updates to address over two dozen serious vulnerabilities affecting the Cisco Nexus switches, including denial-of-service (DoS) issues, arbitrary code execution and privilege escalation flaws. Cisco published security advisories for most of the vulnerabilities, many of them impact the […]

Pierluigi Paganini February 22, 2019
Expert found a DoS flaw in Windows Servers running IIS

Windows servers running Internet Information Services (IIS) are vulnerable to denial-of-service (DoS) attacks carried out through malicious HTTP/2 requests. Microsoft revealed that Windows servers running Internet Information Services (IIS) are vulnerable to denial-of-service (DoS) attacks. Attackers can trigger a DoS condition by sending specially crafted HTTP/2 requests, the CPU usage will temporarily spike to 100% […]