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Zero-Day Alert: Lace Tempest Exploits SysAid IT Support Software Vulnerability

Zero-Day Alert: Lace Tempest Exploits SysAid IT Support Software Vulnerability
Nov 09, 2023 Vulnerability / Zero Day
The threat actor known as Lace Tempest has been linked to the exploitation of a zero-day flaw in SysAid IT support software in limited attacks, according to new findings from Microsoft. Lace Tempest, which is known for distributing the Cl0p ransomware, has in the past leveraged zero-day flaws in  MOVEit Transfer  and  PaperCut servers . The issue, tracked as  CVE-2023-47246 , concerns a path traversal flaw that could result in code execution within on-premise installations. It has been patched by SysAid in version 23.3.36 of the software. "After exploiting the vulnerability, Lace Tempest issued commands via the SysAid software to deliver a malware loader for the Gracewire malware," Microsoft  said . "This is typically followed by human-operated activity, including lateral movement, data theft, and ransomware deployment." According to SysAid, the threat actor has been  observed  uploading a WAR archive containing a web shell and other payloads into the webroot

Mozilla Rushes to Patch WebP Critical Zero-Day Exploit in Firefox and Thunderbird

Mozilla Rushes to Patch WebP Critical Zero-Day Exploit in Firefox and Thunderbird
Sep 13, 2023 Vulnerability / Browser Security
Mozilla on Tuesday released security updates to resolve a critical zero-day vulnerability in Firefox and Thunderbird that has been actively exploited in the wild, a day after Google released a fix for the issue in its Chrome browser. The shortcoming, assigned the identifier  CVE-2023-4863 , is a heap buffer overflow flaw in the WebP image format that could result in arbitrary code execution when processing a specially crafted image. "Opening a malicious WebP image could lead to a heap buffer overflow in the content process," Mozilla  said  in an advisory. "We are aware of this issue being exploited in other products in the wild." According to the description on the National Vulnerability Database (NVD), the flaw could allow a remote attacker to perform an out-of-bounds memory write via a crafted HTML page. Apple Security Engineering and Architecture (SEAR) and the Citizen Lab at the University of Toronto's Munk School have been credited with reporting the s

Apple Rushes to Patch Zero-Day Flaws Exploited for Pegasus Spyware on iPhones

Apple Rushes to Patch Zero-Day Flaws Exploited for Pegasus Spyware on iPhones
Sep 08, 2023 Spyware / Vulnerability
Apple on Thursday released emergency security updates for iOS, iPadOS, macOS, and watchOS to address two zero-day flaws that have been exploited in the wild to deliver NSO Group's Pegasus mercenary spyware. The issues are described as below - CVE-2023-41061  - A validation issue in Wallet that could result in arbitrary code execution when handling a maliciously crafted attachment. CVE-2023-41064  - A buffer overflow issue in the  Image I/O component  that could result in arbitrary code execution when processing a maliciously crafted image. While CVE-2023-41064 was found by the Citizen Lab at the University of Torontoʼs Munk School, CVE-2023-41061 was discovered internally by Apple, with "assistance" from the Citizen Lab. The updates are available for the following devices and operating systems - iOS 16.6.1 and iPadOS 16.6.1  - iPhone 8 and later, iPad Pro (all models), iPad Air 3rd generation and later, iPad 5th generation and later, and iPad mini 5th generati

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What's the Right EDR for You?

What's the Right EDR for You?
May 10, 2024Endpoint Security / Threat Detection
A guide to finding the right endpoint detection and response (EDR) solution for your business' unique needs. Cybersecurity has become an ongoing battle between hackers and small- and mid-sized businesses. Though perimeter security measures like antivirus and firewalls have traditionally served as the frontlines of defense, the battleground has shifted to endpoints. This is why endpoint detection and response (EDR) solutions now serve as critical weapons in the fight, empowering you and your organization to detect known and unknown threats, respond to them quickly, and extend the cybersecurity fight across all phases of an attack.  With the growing need to defend your devices from today's cyber threats, however, choosing the right EDR solution can be a daunting task. There are so many options and features to choose from, and not all EDR solutions are made with everyday businesses and IT teams in mind. So how do you pick the best solution for your needs? Why EDR Is a Must Because of

Critical Zero-Days in Atera Windows Installers Expose Users to Privilege Escalation Attacks

Critical Zero-Days in Atera Windows Installers Expose Users to Privilege Escalation Attacks
Jul 24, 2023 Windows Security / Zero-Day
Zero-day vulnerabilities in Windows Installers for the Atera remote monitoring and management software could act as a springboard to launch privilege escalation attacks. The flaws, discovered by Mandiant on February 28, 2023, have been assigned the identifiers  CVE-2023-26077  and  CVE-2023-26078 , with the issues remediated in versions 1.8.3.7 and 1.8.4.9 released by Atera on April 17, 2023, and June 26, 2023, respectively. "The ability to initiate an operation from a NT AUTHORITY\SYSTEM context can present potential security risks if not properly managed," security researcher Andrew Oliveau  said . "For instance, misconfigured  Custom Actions  running as NT AUTHORITY\SYSTEM can be exploited by attackers to execute local privilege escalation attacks." Successful exploitation of such weaknesses could pave the way for the execution of arbitrary code with elevated privileges. Both the flaws reside in the MSI installer's repair functionality, potentially crea

Clop Ransomware Gang Likely Aware of MOVEit Transfer Vulnerability Since 2021

Clop Ransomware Gang Likely Aware of MOVEit Transfer Vulnerability Since 2021
Jun 08, 2023 Ransomware / Zero-Day
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) and Federal Bureau of Investigation (FBI) have published a joint advisory regarding the active exploitation of a  recently disclosed critical flaw  in Progress Software's MOVEit Transfer application to drop ransomware. "The Cl0p Ransomware Gang, also known as TA505, reportedly began exploiting a previously unknown SQL injection vulnerability in Progress Software's managed file transfer (MFT) solution known as MOVEit Transfer," the agencies  said . "Internet-facing MOVEit Transfer web applications were infected with a web shell named LEMURLOOT, which was then used to steal data from underlying MOVEit Transfer databases." The prolific cybercrime gang has since  issued an ultimatum  to several impacted businesses, urging them to get in touch by June 14, 2023, or risk getting all their stolen data published. Microsoft is tracking the activity under the moniker  Lace Tempest  (aka Storm-0950),

Zero-Day Alert: Google Issues Patch for New Chrome Vulnerability - Update Now!

Zero-Day Alert: Google Issues Patch for New Chrome Vulnerability - Update Now!
Jun 06, 2023 Browser Security / Vulnerability
Google on Monday released security updates to patch a high-severity flaw in its Chrome web browser that it said is being actively exploited in the wild. Tracked as  CVE-2023-3079 , the vulnerability has been described as a type confusion bug in the V8 JavaScript engine. Clement Lecigne of Google's Threat Analysis Group (TAG) has been credited with reporting the issue on June 1, 2023. "Type confusion in V8 in Google Chrome prior to 114.0.5735.110 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page,"  according  to the NIST's National Vulnerability Database (NVD). The tech giant, as is typically the case, did not disclose details of the nature of the attacks, but  noted  it's "aware that an exploit for CVE-2023-3079 exists in the wild." With the latest development, Google has addressed a total of three actively exploited zero-days in Chrome since the start of the year - CVE-2023-2033  (CVSS score: 8.8) - Type Co

WebKit Under Attack: Apple Issues Emergency Patches for 3 New Zero-Day Vulnerabilities

WebKit Under Attack: Apple Issues Emergency Patches for 3 New Zero-Day Vulnerabilities
May 19, 2023 Zero-Day / Endpoint Security
Apple on Thursday  rolled out security updates  to iOS, iPadOS, macOS, tvOS, watchOS, and the Safari web browser to address dozens of flaws, including three new zero-days that it said are being actively exploited in the wild. The three security shortcomings are listed below - CVE-2023-32409  - A WebKit flaw that could be exploited by a malicious actor to break out of the Web Content sandbox. It was addressed with improved bounds checks. CVE-2023-28204  - An out-of-bounds read issue in WebKit that could be abused to disclose sensitive information when processing web content. It was addressed with improved input validation. CVE-2023-32373  - A use-after free bug in WebKit that could lead to arbitrary code execution when processing maliciously crafted web content. It was addressed with improved memory management. The iPhone maker credited Clément Lecigne of Google's Threat Analysis Group (TAG) and Donncha Ó Cearbhaill of Amnesty International's Security Lab for reporting C

NSO Group Used 3 Zero-Click iPhone Exploits Against Human Rights Defenders

NSO Group Used 3 Zero-Click iPhone Exploits Against Human Rights Defenders
Apr 20, 2023 Zero-Day / Spyware
Israeli spyware maker NSO Group deployed at least three novel "zero-click" exploits against iPhones in 2022 to infiltrate defenses erected by Apple and deploy Pegasus, according to the latest findings from Citizen Lab. "NSO Group customers widely deployed at least three iOS 15 and iOS 16 zero-click exploit chains against civil society targets around the world," the interdisciplinary laboratory based at the University of Toronto  said . NSO Group is the manufacturer of  Pegasus , a sophisticated cyber weapon that's capable of extracting sensitive information stored in a device – e.g., messages, locations, photos, and call logs, among others — in real-time. It's typically delivered to targeted iPhones using zero-click and/or zero-day exploits. While it has been pitched as a tool for law enforcement agencies to combat serious crimes such as child sexual abuse and terrorism, it has also been deployed illegally by authoritarian governments to spy on human rig

Google Chrome Hit by Second Zero-Day Attack - Urgent Patch Update Released

Google Chrome Hit by Second Zero-Day Attack - Urgent Patch Update Released
Apr 19, 2023 Browser Security / Zero-Day
Google on Tuesday rolled out emergency fixes to address another actively exploited high-severity zero-day flaw in its Chrome web browser. The flaw, tracked as  CVE-2023-2136 , is  described  as a case of  integer overflow  in  Skia , an open source 2D graphics library. Clément Lecigne of Google's Threat Analysis Group (TAG) has been credited with discovering and reporting the flaw on April 12, 2023. "Integer overflow in Skia in Google Chrome prior to 112.0.5615.137 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page,"  according  to the NIST's National Vulnerability Database (NVD). The tech giant, which also fixed seven other security issues with the latest update, said it's aware of active exploitation of the flaw, but did not disclose additional details to prevent further abuse. The development marks the second Chrome zero-day vulnerability to be exploited by malicious actors th

Spyware Vendors Caught Exploiting Zero-Day Vulnerabilities on Android and iOS Devices

Spyware Vendors Caught Exploiting Zero-Day Vulnerabilities on Android and iOS Devices
Mar 29, 2023 Zero-Day / Mobile Security
A number of zero-day vulnerabilities that were addressed last year were exploited by commercial spyware vendors to target Android and iOS devices, Google's Threat Analysis Group (TAG) has revealed. The two distinct campaigns were both limited and highly targeted, taking advantage of the patch gap between the release of a fix and when it was actually deployed on the targeted devices. The scale of the two campaigns and the nature of the targets are currently unknown. "These vendors are enabling the proliferation of dangerous hacking tools, arming governments that would not be able to develop these capabilities in-house," TAG's Clement Lecigne  said  in a new report. "While use of surveillance technologies may be legal under national or international laws, they are often found to be used by governments to target dissidents, journalists, human rights workers, and opposition party politicians." The first of the two operations took place in November 2022 and

Microsoft Rolls Out Patches for 80 New Security Flaws — Two Under Active Attack

Microsoft Rolls Out Patches for 80 New Security Flaws — Two Under Active Attack
Mar 15, 2023 Patch Tuesday / Software Update
Microsoft's Patch Tuesday update for March 2023 is rolling out with remediations for a set of  80 security flaws , two of which have come under active exploitation in the wild. Eight of the 80 bugs are rated Critical, 71 are rated Important, and one is rated Moderate in severity. The updates are in  addition to 29 flaws  the tech giant fixed in its Chromium-based Edge browser in recent weeks. The two vulnerabilities that have come under active attack include a Microsoft Outlook privilege escalation flaw ( CVE-2023-23397 , CVSS score: 9.8) and a Windows SmartScreen security feature bypass ( CVE-2023-24880 , CVSS score: 5.1). CVE-2023-23397 is "triggered when an attacker sends a message with an extended MAPI property with a UNC path to an SMB (TCP 445) share on a threat actor-controlled server," Microsoft  said  in a standalone advisory. A threat actor could leverage this flaw by sending a specially crafted email, activating it automatically when it is retrieved and pr

Fortinet FortiOS Flaw Exploited in Targeted Cyberattacks on Government Entities

Fortinet FortiOS Flaw Exploited in Targeted Cyberattacks on Government Entities
Mar 14, 2023 Network Security / Cyber Attack
Government entities and large organizations have been targeted by an unknown threat actor by exploiting a security flaw in Fortinet FortiOS software to result in data loss and OS and file corruption. "The complexity of the exploit suggests an advanced actor and that it is highly targeted at governmental or government-related targets," Fortinet researchers Guillaume Lovet and Alex Kong said in an advisory last week. The zero-day flaw in question is CVE-2022-41328 (CVSS score: 6.5), a medium security path traversal bug in FortiOS that could lead to arbitrary code execution. "An improper limitation of a pathname to a restricted directory vulnerability ('path traversal') [CWE-22] in FortiOS may allow a privileged attacker to read and write arbitrary files via crafted CLI commands," the company noted. The shortcoming impacts FortiOS versions 6.0, 6.2, 6.4.0 through 6.4.11, 7.0.0 through 7.0.9, and 7.2.0 through 7.2.3. Fixes are available in versions 6.4.1

Warning: Hackers Actively Exploiting Zero-Day in Fortra's GoAnywhere MFT

Warning: Hackers Actively Exploiting Zero-Day in Fortra's GoAnywhere MFT
Feb 04, 2023 Zero-Day / Vulnerability
A zero-day vulnerability affecting Fortra's GoAnywhere MFT managed file transfer application is being actively exploited in the wild. Details of the flaw were first  publicly shared  by security reporter Brian Krebs on Mastodon. No public advisory has been published by Fortra. The vulnerability is a case of remote code injection that requires access to the administrative console of the application, making it imperative that the systems are not exposed to the public internet. According to security researcher Kevin Beaumont, there are over 1,000 on-premise instances that are publicly accessible over the internet, a majority of which are located in the U.S. "The Fortra advisory Krebs quoted advises GoAnywhere MFT customers to review all administrative users and monitor for unrecognized usernames, especially those created by system," Rapid7 researcher Caitlin Condon  said . "The logical deduction is that Fortra is likely seeing follow-on attacker behavior that inc

Hackers Actively Exploiting Citrix ADC and Gateway Zero-Day Vulnerability

Hackers Actively Exploiting Citrix ADC and Gateway Zero-Day Vulnerability
Dec 14, 2022 Application Security / Zero-Day
The U.S. National Security Agency (NSA) on Tuesday  said  a threat actor tracked as APT5 has been actively exploiting a zero-day flaw in Citrix Application Delivery Controller (ADC) and Gateway to take over affected systems. The critical remote code execution vulnerability, identified as  CVE-2022-27518 , could allow an unauthenticated attacker to execute commands remotely on vulnerable devices and seize control. Successful exploitation, however, requires that the Citrix ADC or Citrix Gateway appliance is configured as a SAML service provider (SP) or a SAML identity provider (IdP). The following supported versions of Citrix ADC and Citrix Gateway are affected by the vulnerability - Citrix ADC and Citrix Gateway 13.0 before 13.0-58.32 Citrix ADC and Citrix Gateway 12.1 before 12.1-65.25 Citrix ADC 12.1-FIPS before 12.1-55.291 Citrix ADC 12.1-NDcPP before 12.1-55.291 Citrix ADC and Citrix Gateway versions 13.1 are not impacted. The company also said there are no workarounds a

Google Warns of Internet Explorer Zero-Day Vulnerability Exploited by ScarCruft Hackers

Google Warns of Internet Explorer Zero-Day Vulnerability Exploited by ScarCruft Hackers
Dec 08, 2022 Patch Management / Zero-Day
An Internet Explorer zero-day vulnerability was actively exploited by a North Korean threat actor to target South Korean users by capitalizing on the recent  Itaewon Halloween crowd crush  to trick users into downloading malware. The discovery, reported by Google Threat Analysis Group researchers Benoît Sevens and Clément Lecigne, is the latest set of attacks perpetrated by  ScarCruft , which is also called APT37, InkySquid, Reaper, and Ricochet Chollima. "The group has historically focused their targeting on South Korean users, North Korean defectors, policy makers, journalists, and human rights activists," TAG  said  in a Thursday analysis. The new findings illustrate the threat actor's continued abuse of Internet Explorer flaws such as CVE-2020-1380 and CVE-2021-26411 to drop backdoors like  BLUELIGHT and Dolphin , the latter of which was disclosed by Slovak cybersecurity firm ESET late last month. Another key tool in its arsenal is  RokRat , a Windows-based remo

Google Rolls Out New Chrome Browser Update to Patch Yet Another Zero-Day Vulnerability

Google Rolls Out New Chrome Browser Update to Patch Yet Another Zero-Day Vulnerability
Dec 03, 2022 Threat Detection / Zero Day
Search giant Google on Friday released an out-of-band security update to fix a new actively exploited zero-day flaw in its Chrome web browser. The high-severity flaw, tracked as  CVE-2022-4262 , concerns a type confusion bug in the V8 JavaScript engine. Clement Lecigne of Google's Threat Analysis Group (TAG) has been credited with reporting the issue on November 29, 2022. Type confusion vulnerabilities could be weaponized by threat actors to perform out-of-bounds memory access, or lead to a crash and arbitrary code execution. According to the NIST's National Vulnerability Database, the flaw  permits  a "remote attacker to potentially exploit heap corruption via a crafted HTML page." Google acknowledged active exploitation of the vulnerability but stopped short of sharing additional specifics to prevent further abuse. CVE-2022-4262 is the fourth actively exploited type confusion flaw in Chrome that Google has addressed since the start of the year. It's also

Google Accuses Spanish Spyware Vendor of Exploiting Chrome, Firefox, & Windows Zero-Days

Google Accuses Spanish Spyware Vendor of Exploiting Chrome, Firefox, & Windows Zero-Days
Dec 01, 2022 Threat Detection / Zero Day
A Barcelona-based surveillanceware vendor named Variston IT is said to have surreptitiously planted spyware on targeted devices by exploiting several zero-day flaws in Google Chrome, Mozilla Firefox, and Windows, some of which date back to December 2018. "Their Heliconia framework exploits n-day vulnerabilities in Chrome, Firefox, and Microsoft Defender, and provides all the tools necessary to deploy a payload to a target device," Google Threat Analysis Group (TAG) researchers Clement Lecigne and Benoit Sevens  said  in a write-up. Variston, which has a  bare-bones website , claims to "offer tailor made Information Security Solutions to our customers," "design custom security patches for any kind of proprietary system," and support the "the discovery of digital information by [law enforcement agencies]," among other services. The vulnerabilities, which have been patched by Google, Microsoft, and Mozilla in 2021 and early 2022, are believed to

Microsoft Warns of Uptick in Hackers Leveraging Publicly-Disclosed 0-Day Vulnerabilities

Microsoft Warns of Uptick in Hackers Leveraging Publicly-Disclosed 0-Day Vulnerabilities
Nov 05, 2022
Microsoft is warning of an uptick among nation-state and criminal actors increasingly leveraging publicly-disclosed zero-day vulnerabilities for breaching target environments. The tech giant, in its 114-page  Digital Defense Report , said it has "observed a reduction in the time between the announcement of a vulnerability and the commoditization of that vulnerability," making it imperative that organizations patch such exploits in a timely manner. This also corroborates with an April 2022 advisory from the U.S. Cybersecurity and Infrastructure Security Agency (CISA), which  found  that bad actors are "aggressively" targeting newly disclosed software bugs against broad targets globally. Microsoft noted that it only takes 14 days on average for an exploit to be available in the wild after public disclosure of a flaw, stating that while zero-day attacks are initially limited in scope, they tend to be swiftly adopted by other threat actors, leading to indiscriminat
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