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Adobe's  Patch Tuesday update  for September 2023 comes with a patch for a critical actively exploited security flaw in Acrobat and Reader that could permit an attacker to execute malicious code on susceptible systems. The vulnerability, tracked as CVE-2023-26369, is rated 7.8 for severity on the CVSS scoring system and impacts both Windows and macOS versions of Acrobat DC, Acrobat Reader DC, Acrobat 2020, and Acrobat Reader 2020. Described as an out-of-bounds write, successful exploitation of the bug could lead to code execution by opening a specially crafted PDF document. Adobe did not disclose any additional details about the issue or the targeting involved. "Adobe is aware that CVE-2023-26369 has been exploited in the wild in limited attacks targeting Adobe Acrobat and Reader," the company  acknowledged  in an advisory. CVE-2023-26369 affects the below versions - Acrobat DC (23.003.20284 and earlier versions) - Fixed in 23.006.20320 Acrobat Reader DC (23.003.

A suspected Chinese-nexus hacking group exploited a  recently disclosed zero-day flaw  in Barracuda Networks Email Security Gateway (ESG) appliances to breach government, military, defense and aerospace, high-tech industry, and telecom sectors as part of a global espionage campaign. Mandiant, which is tracking the activity under the name  UNC4841 , described the threat actor as "highly responsive to defensive efforts" and capable of actively tweaking their modus operandi to maintain persistent access to targets. "UNC4841 deployed new and novel malware designed to maintain presence at a small subset of high priority targets that it compromised either before the patch was released, or shortly following Barracuda's remediation guidance," the Google-owned threat intelligence firm  said  in a new technical report published today. Almost a third of the identified affected organizations are government agencies. Interestingly enough, some of the earliest compromises

Continuous Threat Exposure Management (CTEM) is a strategic framework that helps organizations continuously assess and manage cyber risk. It breaks down the complex task of managing security threats into five distinct stages: Scoping, Discovery, Prioritization, Validation, and Mobilization. Each of these stages plays a crucial role in identifying, addressing, and mitigating vulnerabilities - before they can be exploited by attackers.  On paper, CTEM sounds great . But where the rubber meets the road – especially for CTEM neophytes - implementing CTEM can seem overwhelming. The process of putting CTEM principles into practice can look prohibitively complex at first. However, with the right tools and a clear understanding of each stage, CTEM can be an effective method for strengthening your organization's security posture.  That's why I've put together a step-by-step guide on which tools to use for which stage. Want to learn more? Read on… Stage 1: Scoping  When you're defin

The U.S. Federal Bureau of Investigation (FBI) is warning that Barracuda Networks Email Security Gateway (ESG) appliances patched against a recently disclosed critical flaw continue to be at risk of potential compromise from suspected Chinese hacking groups. It also  deemed  the fixes as "ineffective" and that it "continues to observe active intrusions and considers all affected Barracuda ESG appliances to be compromised and vulnerable to this exploit." Tracked as  CVE-2023-2868  (CVSS score: 9.8), the zero-day bug is said to have been weaponized as early as October 2022, more than seven months before the security hole was plugged. Google-owned Mandiant is tracking the China-nexus activity cluster under the name  UNC4841 . The remote command injection vulnerability, impacting versions 5.1.3.001 through 9.2.0.006, allows for unauthorized execution of system commands with administrator privileges on the ESG product. In the attacks observed so far, a successful b

The U.S. Cybersecurity and Infrastructure Security Agency has  added  a batch of six flaws to its Known Exploited Vulnerabilities ( KEV ) catalog, citing evidence of active exploitation. This comprises three vulnerabilities that Apple patched this week ( CVE-2023-32434, CVE-2023-32435, and CVE-2023-32439 ), two flaws in VMware ( CVE-2023-20867  and  CVE-2023-20887 ), and one shortcoming impacting Zyxel devices ( CVE-2023-27992 ). CVE-2023-32434 and CVE-2023-32435, both of which allow code execution, are said to have been exploited as zero-days to deploy spyware as part of a years-long cyber espionage campaign that commenced in 2019. Dubbed Operation Triangulation, the activity culminates in the deployment of  TriangleDB  that's designed to harvest a wide range of information from compromised devices, such as creating, modifying, removing, and stealing files, listing and terminating processes, gathering credentials from iCloud Keychain, and tracking a user's location. The

Multiple security flaws uncovered in Sonos One wireless speakers could be potentially exploited to achieve information disclosure and remote code execution, the Zero Day Initiative (ZDI)  said  in a report published last week. The vulnerabilities were demonstrated by three different teams from Qrious Secure, STAR Labs, and DEVCORE at the Pwn2Own hacking contest held in Toronto late last year, netting them $105,000 in monetary rewards. The list of four flaws, which impact Sonos One Speaker 70.3-35220, is below - CVE-2023-27352  and  CVE-2023-27355  (CVSS scores: 8.8)  - Unauthenticated flaws that allow network-adjacent attackers to execute arbitrary code on affected installations. CVE-2023-27353  and  CVE-2023-27354  (CVSS score: 6.5)  - Unauthenticated flaws that allow network-adjacent attackers to disclose sensitive information on affected installations. While CVE-2023-27352 stems from when processing SMB directory query commands, CVE-2023-27355 exists within the MPEG-TS pars

An exploration of zero-click attack surface for the popular video conferencing solution Zoom has yielded two previously undisclosed security vulnerabilities that could have been exploited to crash the service, execute malicious code, and even leak arbitrary areas of its memory. Natalie Silvanovich of Google Project Zero, who  discovered  and reported the  two   flaws  last year, said the issues impacted both Zoom clients and Multimedia Router (MMR) servers, which transmit audio and video content between clients in  on-premise deployments . The weaknesses have since been addressed by Zoom as part of  updates  shipped on November 24, 2021. The goal of a zero-click attack is to stealthily gain control over the victim's device without requiring any kind of interaction from the user, such as clicking on a link. While the specifics of the exploit will vary depending on the nature of vulnerability being exploited, a key trait of zero-click hacks is their ability not to leave behind

Apache has issued patches to address two security vulnerabilities, including a path traversal and file disclosure flaw in its HTTP server that it said is being actively exploited in the wild. "A flaw was found in a change made to path normalization in Apache HTTP Server 2.4.49. An attacker could use a path traversal attack to map URLs to files outside the expected document root," the open-source project maintainers  noted  in an advisory published Tuesday. "If files outside of the document root are not protected by 'require all denied' these requests can succeed. Additionally this flaw could leak the source of interpreted files like CGI scripts." The flaw, tracked as  CVE-2021-41773 , affects only Apache HTTP server version 2.4.49. Ash Daulton and cPanel Security Team have been credited with discovering and reporting the issue on September 29, 2021. Source: PT SWARM Also resolved by Apache is a null pointer dereference vulnerability observed during pr

Apple on Monday rolled out an urgent security update for  iOS, iPadOS , and  macOS  to address a zero-day flaw that it said may have been actively exploited, making it the thirteenth such vulnerability Apple has patched since the start of this year. The updates, which arrive less than a week after the company released iOS 14.7, iPadOS 14.7, and macOS Big Sur 11.5 to the public, fixes a memory corruption issue ( CVE-2021-30807 ) in the IOMobileFrameBuffer component, a kernel extension for managing the screen  framebuffer , that could be abused to execute arbitrary code with kernel privileges. The company said it addressed the issue with improved memory handling, noting it's "aware of a report that this issue may have been actively exploited." As is typically the case, additional details about the flaw have not been disclosed to prevent the weaponization of the vulnerability for additional attacks. Apple credited an anonymous researcher for discovering and reporting the

A malvertising group known as "ScamClub" exploited a zero-day vulnerability in WebKit-based browsers to inject malicious payloads that redirected users to fraudulent websites gift card scams. The attacks, first spotted by ad security firm Confiant in late June 2020, leveraged a bug (CVE-2021–1801) that allowed malicious parties to bypass the iframe sandboxing policy in the browser engine that powers Safari and Google Chrome for iOS and run malicious code. Specifically, the technique exploited the manner how WebKit handles JavaScript event listeners , thus making it possible to break out of the sandbox associated with an ad's inline frame element despite the presence of "allow-top-navigation-by-user-activation" attribute that explicitly forbids any redirection unless the click event occurs inside the iframe. To test this hypothesis, the researchers set about creating a simple HTML file containing a cross-origin sandboxed iframe and a button outside it that

Apple on Tuesday released updates for iOS, iPadOS, and tvOS with fixes for three security vulnerabilities that it says may have been actively exploited in the wild. Reported by an anonymous researcher, the three  zero-day   flaws  — CVE-2021-1782, CVE-2021-1870, and CVE-2021-1871 — could have allowed an attacker to elevate privileges and achieve remote code execution. The iPhone maker did not disclose how widespread the attack was or reveal the identities of the attackers actively exploiting them. While the privilege escalation bug in the kernel (CVE-2021-1782) was noted as a race condition that could cause a malicious application to elevate its privileges, the other two shortcomings — dubbed a "logic issue" — were discovered in the WebKit browser engine (CVE-2021-1870 and CVE-2021-1871), permitting an attacker to achieve arbitrary code execution inside Safari. Apple said the race condition and the WebKit flaws were addressed with improved locking and restrictions, resp

The Shadow Brokers , a notorious hacking group that leaked US cyberweapons — which were also abused by the recent ransomware disasters WannaCry and Petya or NotPetya — has now threatened to unmask the identity of a former hacker who worked for the NSA. Besides this, the Shadow Brokers group has also doubled the price for its monthly subscription model of NSA's built hacking tools and zero-day exploits from 100 ZEC (Zcash) to 200 ZEC, which is around $64,400 USD. Moreover, the hacking group has also announced a VIP service for people, who will be entertained by the group for their queries on the leaked hacking tools and exploits. To subscribe to the VIP service, one has to make a one-time payment of 400 ZEC (around US$128,800). Last month, the Shadow Brokers announced to release more zero-days exploits and hacking tools  developed by the US spy agency every month from June 2017, but only to private members who will subscribe for receiving exclusive access to the futur

Microsoft is once again facing embarrassment for not patching a vulnerability on time. Yes, Google's Project Zero team has once again publicly disclosed a vulnerability  ( with POC exploit ) affecting Microsoft's Windows operating systems ranging from Windows Vista Service Pack 2 to the latest Windows 10 that had yet to be patched. A few months back, the search engine giant disclosed a critical Windows vulnerability to the public just ten days after revealing the flaw to Microsoft. However, this time Google revealed the vulnerability in Windows to the public after Microsoft failed to patch it within the 90-day window given by the company. Google's Project Zero member Mateusz Jurczyk responsibly reported a vulnerability in Windows' Graphics Device Interface (GDI) library to Microsoft Security Team on the 9th of June last year. The vulnerability affects any program that uses this library, and if exploited, could potentially allow hackers to steal informatio

Oh Microsoft, How could you do this to your own Internet Explorer? Microsoft had kept hidden a critical Zero-Day vulnerability of Internet explorer 8 from all of us, since October 2013. A Critical zero-day Internet Explorer vulnerability ( CVE-2014-1770 ), which was discovered by Peter 'corelanc0d3r' Van Eeckhoutte in October 2013 just goes public today by the Zero Day Initiative (ZDI) website . Zero Day Initiative is a program for rewarding security researchers for responsibly disclosing vulnerabilities. ZDI reportedly disclosed the vulnerability to Microsoft when it was first identified by one of its researchers, on which Microsoft responded 4 month later on February 2014 and confirmed the flaw, but neither the Microsoft patch the vulnerability nor it disclosed any details about it. But due to ZDI's 180 days public notification policy, they are obligated to publicly disclosed the details of a Zero-Day vulnerability. ZDI warned Microsoft several days ago ab

Microsoft had publicized widely its plans to stop supporting oldest and widely used Operating system, Windows XP after 8th April this year, which means Microsoft would no longer issue security patches for XP. A few days back, we reported about a new critical Zero-day vulnerability in all versions of Microsoft's browser Internet Explorer, starting with IE version 6 and including IE version 11. According to the advisory (CVE-2014-1776), All versions of Internet Explorer are vulnerable to Remote Code Execution flaw, which resides ' in the way that Internet Explorer accesses an object in memory that has been deleted or has not been properly allocated ,' Microsoft confirmed . An attacker who successfully exploited this vulnerability could gain the same user rights as the current user. FIRST PATCH FOR WINDOWS XP, EVEN AFTER EXPIRATION DATE Internet Explorer vulnerability poses a special concern for people still using Windows XP , but can Microsoft really ignore inno

Microsoft confirmed a new Zero Day critical vulnerability in its browser Internet Explorer . Flaw affects all versions of Internet Explorer, starting with IE version 6 and including IE version 11. In a Security Advisory ( 2963983 ) released yesterday, Microsoft acknowledges a zero-day Internet Explorer vulnerability ( CVE-2014-177 6) is being used in targeted attacks by APT groups, but the currently active attack campaigns are targeting IE9, IE10 and IE11. INTERNET EXPLORER 0-DAY VULNERABILITY (CVE-2014-1776) According to Advisory, Internet Explorer is vulnerable to Remote Code Execution, which resides ' in the way that Internet Explorer accesses an object in memory that has been deleted or has not been properly allocated. ' Microsoft said. Microsoft Investigation team is currently working with FireEye Security experts, and dubbed the ongoing targeted campaign as " Operation Clandestine Fox ". In a blogpost , FireEye explained that an attacker c

On Saturday, the Senior Administration Officials cast light on the subject of Internet Security and said President Obama has clearly decided that whenever the U.S. Intelligence agency like NSA discovers major vulnerabilities, in most of the situations the agency should reveal them rather than exploiting for national purpose, according to The New York Times . OBAMA's POLICY WITH LOOPHOLE FOR NSA Yet, there is an exception to the above statement, as Mr. President carved a detailed exception to the policy " Unless there is a clear national security or law enforcement need, " which means that the policy creates a loophole for the spying agencies like NSA to sustain their surveillance programs by exploiting security vulnerabilities to create Cyber Weapons. After three-month review of recommendations [ PDF-file ], the Final Report of the Review Group on Intelligence and Communications Technologies was submitted to Mr. Obama on last December, out of which one of the recommendation on pa

So, is your Safari Web Browser Updated?? Make sure you have the latest web browser updated for your Apple Macintosh systems, as Apple released Safari 6.1.3 and Safari 7.0.3 with new security updates. These Security updates addresses multiple vulnerabilities in its Safari web browser, which has always been the standard browser for Mac users. This times not five or ten, in fact about two dozen. Apple issued a security update to patch a total of 27 vulnerabilities in Safari web browser, including the one which was highlighted at Pwn2Own 2014 hacking competition. The available updates replace the browser running OSX 10.7 and 10.8 with the latest versions of browser 6.1.3, and OSX 10.9 with 7.0.3. Among the 27 vulnerabilities, the most remarkable vulnerability addressed in the update is CVE-2014-1303 , a heap-based buffer overflow that can be remotely exploited and could lead to bypass a sandbox protection mechanism via unspecified vector. This vulnerability is

Imagine, You Open a Winrar archive of MP3 files, but what if it will install a malware into your system when you play anyone of them. WinRAR, a widely used file archiver and data compression utility helps hackers to distribute malicious code. Israeli security researcher  Danor Cohen (An7i)   discovered the WinRAR file extension spoofing vulnerability. WinRAR file extension spoofing vulnerability allows hackers to modify the filename and extension inside the traditional file archive, that helps them to hide binary malicious code inside an archive, pretending itself as '.jpg' , '.txt' or any other format. Using a Hex editor tool, he analysed a ZIP file and noticed that winrar tool also adds some custom properties to an archive, including two names - First name is the original filename (FAX.png) and second name is the filename (FAX.png) that will appear at the WINRAR GUI window. Danor manipulated the second filename and extension to prepare a special Z

Last week, the Researchers at the German security company G Data Software have reported about the most complex and sophisticated rootkit  malware, Uroburos which is designed to steal data from secure facilities and has ability to take control of an infected machine, execute arbitrary commands and hide system activities. Recently, British cyber specialist BAE  has disclosed the parent Russian malware campaign dubbed as ' SNAKE ' that remained almost undetected for least eight years while penetrating highly secured systems. Uroburos rootkit was one of the components of this campaign. In a separate Investigation, Western intelligence officers have found another piece of spyware , infecting hundreds of government computers across Europe and the United States, known as ' Turla '. Researchers believed that  Turla  campaign is linked to a previously known campaign ' Red October ', a massive global cyber spying operation targeting diplomatic, military and nuclear