Microsoft Issues Patches for Defender Zero-Day and 82 Other Windows Flaws
For the first patch Tuesday of 2021, Microsoft released security updates addressing a total of 83 flaws spanning as many as 11 products and services, including an actively exploited zero-day vulnerability.
Ransomware Attackers Using SystemBC Malware With RAT and Tor Proxy
Cybercriminals are increasingly outsourcing the task of deploying ransomware to affiliates using commodity malware and attack tools.
New Evidence Suggests SolarWinds' Codebase Was Hacked to Inject Backdoor
The investigation into how the attackers managed to compromise SolarWinds' internal network and poison the company's software updates is still underway, but we may be one step closer to understanding what appears to be a very meticulously planned and highly-sophisticated supply chain attack.
US Agencies and FireEye Were Hacked Using SolarWinds Software Backdoor
State-sponsored actors allegedly working for Russia have targeted the US Treasury, the Commerce Department's National Telecommunications and Information Administration (NTIA), and other government agencies to monitor internal email traffic as part of a widespread cyberespionage campaign.
Watch Out! Adrozek Malware Hijacking Chrome, Firefox, Edge, Yandex Browsers
Microsoft on Thursday took the wraps off an ongoing campaign impacting popular web browsers that stealthily injects malware-infested ads into search results to earn money via affiliate advertising.
Zero-Click Wormable RCE Vulnerability Reported in Microsoft Teams
A zero-click remote code execution (RCE) bug in Microsoft Teams desktop apps could have allowed an adversary to execute arbitrary code by merely sending a specially-crafted chat message and compromise a target's system.
WARNING — Critical Remote Hacking Flaws Affect D-Link VPN Routers
Some widely sold D-Link VPN router models have been found vulnerable to three new high-risk security vulnerabilities, leaving millions of home and business networks open to cyberattacks—even if they are secured with a strong password.
Microsoft Releases Windows Update (Dec 2020) to Fix 58 Security Flaws
Microsoft on Tuesday released fixes for 58 newly discovered security flaws spanning as many as 11 products and services as part of its final Patch Tuesday of 2020, effectively bringing their CVE total to 1,250 for the year. Of these 58 patches, nine are rated as Critical, 46 are rated as Important, and three are rated Moderate in severity.
Multiple Botnets Exploiting Critical Oracle WebLogic Bug — PATCH NOW
Multiple botnets are targeting thousands of publicly exposed and still unpatched Oracle WebLogic servers to deploy crypto miners and steal sensitive information from infected systems.
Stantinko Botnet Now Targeting Linux Servers to Hide Behind Proxies
An adware and coin-miner botnet targeting Russia, Ukraine, Belarus, and Kazakhstan at least since 2012 has now set its sights on Linux servers to fly under the radar.
Cisco warns of actively exploited IOS XR zero-days
Cisco warned on Saturday about two zero-day vulnerability impacting the Internetwork Operating System (IOS) that ships with its networking equipment.
The vulnerabilities, tracked as CVE-2020-3566 and CVE-2020-3569, impact the Distance Vector Multicast Routing Protocol (DVMRP) feature that ships with the IOS XR version of the operating system. This version of the OS is usually installed on carrier-grade and data center routers.
DVMRP feature contains a bug that allows an unauthenticated, remote attacker to exhaust process memory and crash other processes running on the device.
"These vulnerabilities are due to the incorrect handling of IGMP packets. An attacker could exploit these vulnerabilities by sending crafted IGMP traffic to an affected device. A successful exploit could allow the attacker to immediately crash the IGMP process or cause memory exhaustion, resulting in other processes becoming unstable. These processes may include, but are not limited to, interior and exterior routing protocols."
EXPLOITATION ATTEMPTS DISCOVERED LAST WEEK
"On Aug. 28, 2020, the Cisco Product Security Incident Response Team (PSIRT) became aware of an attempted exploitation of this vulnerability in the wild".
The patches are still a few days away. In the meantime, Cisco has provided several workarounds and mitigations for its customers in order to prevent that any exploitation fail -- if they occur.
It is unclear how attackers are using these bugs in the grand scheme of things. They may be using it to crash other processes on the router, such as security mechanisms, and gain access to the device. However, this is only a theory, and companies will need to thoroughly comb their logs after they spot any signs of CVE-2020-3566 and CVE-2020-3569 exploitation.