DDoS attacks in Q4 2020

News overview Cybercriminals are constantly on the lookout for means and methods to make attacks more destructive. In Q4 2020, Citrix ADC application delivery controller devices became one such tool, when perpetrators abused their DTLS interface. The DTLS Datagram Transport Layer Security protoco...

Plex Media Server < 1.21.3.4014 SSDP (PMSSDP) Reflection/Amplification DDoS Attack

Plex Media Server installations in a specific and uncommon network position could potentially be used to reflect UDP traffic on certain device-discovery ports as part of a possible DDoS distributed denial-of-service attack. Copyright C 2021 Greenbone Networks GmbH Some text descriptions might be...

Android devices caught in Matryosh botnet

Researchers at Netlab have discovered a new botnet that re-uses the Mirai framework to pull vulnerable Android devices into DDoS attacks. The new botnet, which is called Matryosh, is named after the Russian nesting dolls because the encryption algorithm it uses, and the process of obtaining comma...

Cybercriminals Now Using Plex Media Servers to Amplify DDoS Attacks

A new distributed denial-of-service attack DDoS vector has ensnared Plex Media Server systems to amplify malicious traffic against targets to take them offline. "Plex's startup processes unintentionally expose a Plex UPnP-enabled service registration responder to the general Internet, where it ca...

CVE-2020-14312

A flaw was found in the default configuration of dnsmasq, as shipped with Fedora versions prior to 31 and in all versions Red Hat Enterprise Linux, where it listens on any interface and accepts queries from addresses outside of its local subnet. In particular, the option local-service is not...

Default configuration

A flaw was found in the default configuration of dnsmasq, as shipped with Fedora versions prior to 31 and in all versions Red Hat Enterprise Linux, where it listens on any interface and accepts queries from addresses outside of its local subnet. In particular, the option local-service is not...

CVE-2020-14312

A flaw was found in the default configuration of dnsmasq, as shipped with Fedora versions prior to 31 and in all versions Red Hat Enterprise Linux, where it listens on any interface and accepts queries from addresses outside of its local subnet. In particular, the option local-service is not...

UBUNTU-CVE-2020-14312

A flaw was found in the default configuration of dnsmasq, as shipped with Fedora versions prior to 31 and in all versions Red Hat Enterprise Linux, where it listens on any interface and accepts queries from addresses outside of its local subnet. In particular, the option local-service is not...

CVE-2020-14312

CVE-2020-14312 affects dnsmasq in Fedora versions prior to 31 and all Red Hat Enterprise Linux versions. The issue is a default configuration flaw where dnsmasq listens on any interface and does not enable the local-service option, effectively making it an open resolver accessible from arbitrary ...

CVE-2020-14312

A flaw was found in the default configuration of dnsmasq, as shipped with Fedora versions prior to 31 and in all versions Red Hat Enterprise Linux, where it listens on any interface and accepts queries from addresses outside of its local subnet. In particular, the option local-service is not...

CVE-2020-14312

A flaw was found in the default configuration of dnsmasq, as shipped with Fedora versions prior to 31 and in all versions Red Hat Enterprise Linux, where it listens on any interface and accepts queries from addresses outside of its local subnet. In particular, the option local-service is not...

API Security Checks in the Post-Pandemic World

The digital transformation journeys of many enterprises have been accelerated by the COVID-19 pandemic. For 2020, IT resources shifted to support WFH policies with mobile and remote productivity solutions, while simultaneously managing multiple datacenter migration projects to the cloud for scale...

Android Devices Prone to New Botnet’s DDoS Onslaught

Researchers are warning a new botnet is recycling the Mirai malware framework and is now targeting Android devices in order to launch distributed denial-of-service DDoS attacks. The botnet is dubbed Matryosh after a Matryoshka Russian nesting doll due to many of its functions being “nested” in...

Watch out as new Matryosh DDoS botnet hits Android devices

By Deeba Ahmed According to Netlab researchers, Matryosh DDoS botnet reuses the Mirai botnet framework. Here's how the malware works. This is a post from HackRead.com Read the original post: Watch out as new Matryosh DDoS botnet hits Android devices...

Beware: New Matryosh DDoS Botnet Targeting Android-Based Devices

A nascent malware campaign has been spotted co-opting Android devices into a botnet with the primary purpose of carrying out distributed denial-of-service DDoS attacks. Called "Matryosh" by Qihoo 360's Netlab researchers, the latest threat has been found reusing the Mirai botnet framework and...

Nextcloud Server Resource Management Error Vulnerability

Nextcloud is a set of open source self-hosted file synchronization and sharing communication application platform from Nextcloud, Germany. A security vulnerability exists in Nextcloud Server. The vulnerability stems from the program's lack of input validation, which prevents users from storing...

A week in security (January 25 – January 31)

January 28 was Data Privacy Day, but for Malwarebytes Labs, it was Data Privacy Week. As such, were packed with more privacy coverage than you can shake a stick at, starting with some practical steps on how to make your online life private and secure, and why privacy is core to a safer internet. ...

CVE-2021-21254

CVE-2021-21254 affects CKEditor 5 Markdown plugin (@ckeditor/ckeditor5-markdown-gfm) versions ≤ 24.0.0. A ReDoS vulnerability arises from the plugin’s link-recognition regex, enabling significant performance degradation and browser tab freezes. The issue is fixed in version 25.0.0, with advisorie...

RDP abused for DDoS attacks

We have talked about RDP many times before. It has been a popular target for brute force attacks for a long time, but attackers have now found a new way to abuse it. Remote access has become more important during the pandemic, with as many people as possible try to work from home. Which makes it...

Enhanced Security at the Edge with Imperva DNS Protection

Your website is the gateway to your business and the potential for disruption of your site or damage to your web infrastructure makes DNS security a serious consideration for organizations. The criticality of DNS Services for ensuring network connectivity and website availability make them a hot...