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Dnsmasq vulnerabilities open networking devices, Linux distros to DNS cache poisoningSeven vulnerabilities affecting Dnsmasq, a caching DNS and DHCP server used in a variety of networking devices and Linux distributions, could be leveraged to mount DNS cache poisoning attack and/or to compromise vulnerable devices. Vulnerability management isn't working for cloud security: Here's how to do it rightThree things in life are seemingly guaranteed: death, taxes and high-profile cloud security breaches.

Cisco this week released patches to address a significant number of vulnerabilities across its product portfolio, including several critical flaws in SD-WAN products, DNA Center, and Smart Software Manager Satellite. Several command injection bugs addressed in SD-WAN products could allow an attacker to perform actions as root on the affected devices, the most important of which is rated critical severity, featuring a CVSS score of 9.9.

Seven vulnerabilities affecting Dnsmasq, a caching DNS and DHCP server used in a variety of networking devices and Linux distributions, could be leveraged to mount DNS cache poisoning attack and/or to compromise vulnerable devices. "Some of the bigger users of Dnsmasq are Android/Google, Comcast, Cisco, Red Hat, Netgear, and Ubiquiti, but there are many more. All major Linux distributions offer Dnsmasq as a package, but some use it more than others, e.g., in OpenWRT it is used a lot, Red Hat use it as part of their virtualization platforms, Google uses it for Android hotspots, while, for example Ubuntu just has it as an optional package," Shlomi Oberman, CEO and researcher at JSOF, told Help Net Security.

An ongoing malware campaign has been found exploiting recently disclosed vulnerabilities in network-attached storage devices running on Linux systems to co-opt the machines into an IRC botnet for launching distributed denial-of-service attacks and mining Monero cryptocurrency. Regardless of the vulnerabilities exploited, the end goal of the attacker appears to be to download and execute a Python script named "Out.py" using Python 2, which reached end-of-life last year - implying that the threat actor is banking on the possibility that that victim devices have this deprecated version installed.

Siemens this week informed customers that some of its product development solutions are affected by a total of nearly two dozen vulnerabilities that can be exploited for arbitrary code execution using malicious files. Siemens and CISA have published one advisory for 18 vulnerabilities affecting Siemens JT2Go, a 3D viewing tool for JT data, and Teamcenter Visualization, which provides organizations visualization solutions for documents, 2D drawings and 3D models.

A researcher has launched Malvuln, a project that catalogues vulnerabilities discovered in malware and provides information on how those vulnerabilities can be exploited. The Malvuln website currently has 26 entries describing remotely exploitable buffer overflow vulnerabilities and privilege escalation flaws related to insecure permissions.

Several vulnerabilities have been identified in Pepperl+Fuchs Comtrol IO-Link Master industrial gateways, including flaws that researchers claim can be exploited to gain root access to a device and create backdoors. A researcher at Austria-based cybersecurity consultancy SEC Consult discovered five types of vulnerabilities in Pepperl+Fuchs Comtrol industrial products, including cross-site request forgery, reflected cross-site scripting, blind command injection, and denial-of-service issues.

Cisco this week announced that it does not plan on addressing tens of vulnerabilities affecting some of its small business routers. "Cisco has not released and will not release software updates to address the vulnerabilities described []. The Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers have entered the end-of-life process. Customers are advised to refer to the end-of-life notices for these products," the company underlines.

German software maker SAP has published 10 advisories to document flaws and fixes for a range of serious security vulnerabilities. Dealing with multiple vulnerabilities in SAP Business Warehouse, the most important of these issues carry a CVSS score of 9.9.

Microsoft on Tuesday released the first batch of security patches for 2021 with fixes for 83 documented security vulnerabilities, including a "Critical" bug in the Defender security product that's being actively exploited. Security experts are urging security response personnel to pay special attention to CVE-2021-1647, which describes a remote code execution flaw in Microsoft Defender, the company's flagship anti-malware product.