Talos release protection against zero-day vulnerability in Microsoft MSHTML

Cisco Talos released new SNORT® rules Thursday to protect against the exploitation of a zero-day vulnerability in Microsoft MSHTML that the company warns is being actively exploited in the wild. Users are encouraged to deploy SIDs 58120 – 58129, Snort 3 SID 300049 and ClamAV... This is only the...

Russian Ransomware Group REvil Back Online After 2-Month Hiatus

The operators behind the REvil ransomware-as-a-service RaaS staged a surprise return after a two-month hiatus following the widely publicized attack on technology services provider Kaseya on July 4. Two of the dark web portals, including the gang's Happy Blog data leak site and its...

Explanation of the zero-day attack

What is a zero-day vulnerability? A zero-day weakness is an obscure security weakness or programming blemish that a danger entertainer can focus with noxious code. The expression “Zero-Day” is utilized in light of the fact that the product merchant was uninformed of their product weakness, and...

IT threat evolution Q2 2021

Targeted attacks The leap of a Cycldek-related threat actor It is quite common for Chinese-speaking threat actors to share tools and methodologies: one such example is the infamous "DLL side-loading triad": a legitimate executable, a malicious DLL to be side-loaded by it and an encoded payload,...

Kaseya REvil Ransomware Attack (CVE-2021-30116) – Automatically Discover and Prioritize Using Qualys VMDR®

On July 2, 2021, Kaseya announced its software had been compromised and was being used to attack the IT infrastructure of its customers. The REvil ransomware attack leveraged multiple zero-day vulnerabilities in Kaseya’s VSA Virtual System/Server Administrator product that helps Kaseya customers ...

REvil Ransomware gang behind the Kaseya VSA Supply-Chain attack

THREAT LEVEL: Red. For a detailed advisory, download the pdf file here. The REvil ransomware group was successful in carrying out a supply chain attack by exploiting the zero-day vulnerability CVE-2021-30116 in the Kaseya VSA server and delivering a malicious script to all the computer devices...

Western Digital Users Face Another RCE

Bad news comes in threes, most particularly for Western Digital customers. As if things weren’t bad enough for the untold number of Western Digital customers whose data blinked out of existence last month, there’s another zero-day waiting for whoever can’t or won’t upgrade its My Cloud storage...

Kaseya Patches Imminent After Zero-Day Exploits

UPDATE 3 The worldwide July 2 attacks on the Kaseya Virtual System/Server Administrator VSA platform by the REvil ransomware gang turn out to be the result of exploits for at least one zero-day security vulnerability, and the company is swinging into full mitigation mode, with patches for the...

Zero-Day Used to Wipe My Book Live Devices

Western Digital will start providing free data-recovery services in July for people whose data was wiped off their network-attached storage NAS devices last week, the company said in an update on Tuesday. The company is also planning to offer a trade-in program to get customers onto the cloud –...

Exploitation of Accellion File Transfer Appliance

Summary This joint advisory is the result of a collaborative effort by the cybersecurity authorities of Australia,1 New Zealand,2 Singapore,3 the United Kingdom,4 and the United States.56 These authorities are aware of cyber actors exploiting vulnerabilities in Accellion File Transfer Appliance...

Exploit for Off-by-one Error in Sudo_Project Sudo

This is a PoC exploit for CVE-2021-3156, a sudo vulnerability dubbed Baron Samedit by Qualys. The exploit targets the heap overflow vulnerability in sudo, aiming for singleshot execution. It does not modify system files and comes with no warranties. The exploit is designed to be used in manual...

Active Exploitation of Pulse Connect Secure Zero-Day (CVE-2021-22893)

On Tuesday, April 20, 2021, security firm FireEye published detailed analysis of multiple threat campaigns targeting Ivanti’s Pulse Connect Secure VPN. According to FireEye’s analysis, threat actors have been leveraging multiple techniques to bypass single- and multi-factor authentication on Puls...

Legacy QNAP NAS Devices Vulnerable to Zero-Day Attack

Two critical zero-day bugs affect legacy QNAP Systems storage hardware, and expose devices to remote unauthenticated attackers. The bugs, tracked as CVE-2020-2509 and CVE-2021-36195, impact QNAP’s model TS-231 network attached storage NAS hardware, allowing an attacker to manipulate stored data a...

Apple Issues Urgent Patch Update for Another Zero‑Day Under Attack

Merely weeks after releasing out-of-band patches for iOS, iPadOS, macOS and watchOS, Apple has issued yet another security update for iPhone, iPad, and Apple Watch to fix a critical zero-day weakness that it says is being actively exploited in the wild. Tracked as CVE-2021-1879 , the vulnerabilit...

SolarWinds Hack — New Evidence Suggests Potential Links to Chinese Hackers

A malicious web shell deployed on Windows systems by leveraging a previously undisclosed zero-day in SolarWinds' Orion network monitoring software may have been the work of a possible Chinese threat group. In a report published by Secureworks on Monday, the cybersecurity firm attributed the...

Google Chrome Zero-Day Afflicts Windows, Mac Users

Google is warning of a zero-day vulnerability in its V8 open-source web engine that’s being actively exploited by attackers. A patch has been issued in version 88 of Google’s Chrome browser — specifically, version 88.0.4324.150 for Windows, Mac and Linux. This update will roll out over the coming...

CVE-2021-20016

A SQL-Injection vulnerability in the SonicWall SSLVPN SMA100 product allows a remote unauthenticated attacker to perform SQL query to access username password and other session related information. This vulnerability impacts SMA100 build version 10.x. Recent assessments: wvu-r7 at February 05, 20...

Hackers Exploiting Critical Zero-Day Bug in SonicWall SMA 100 Devices

SonicWall on Monday warned of active exploitation attempts against a zero-day vulnerability in its Secure Mobile Access SMA 100 series devices. The flaw, which affects both physical and virtual SMA 100 10.x devices SMA 200, SMA 210, SMA 400, SMA 410, SMA 500v, came to light after the NCC Group on...

Zero-Day Vulnerability in SonicWall SMA 100 Series Version 10.x Products

CISA is aware of a vulnerability in SonicWall Secure Mobile Access SMA 100 series products. SMA 100 series products provide an organization’s employees with remote access to internal resources. SonicWall security and engineering teams have confirmed a zero-day vulnerability that was reported by a...

Google Discloses Poorly-Patched, Now Unpatched, Windows 0-Day Bug

Google's Project Zero team has made public details of an improperly patched zero-day security vulnerability in Windows print spooler API that could be leveraged by a bad actor to execute arbitrary code. Details of the unpatched flaw were revealed publicly after Microsoft failed to rectify it with...