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Chinese Hackers Exploited Latest SolarWinds 0-Day in Targeted Attacks

Chinese Hackers Exploited Latest SolarWinds 0-Day in Targeted Attacks

Jul 14, 2021
Microsoft on Tuesday disclosed that the latest string of attacks targeting SolarWinds Serv-U managed file transfer service with a now-patched remote code execution (RCE) exploit is the handiwork of a Chinese threat actor dubbed "DEV-0322." The revelation comes days after the Texas-based IT monitoring software maker issued fixes for the flaw that could enable adversaries to remotely run arbitrary code with privileges, allowing them to perform actions like install and run malicious payloads or view and alter sensitive data. Tracked as  CVE-2021-35211 , the RCE flaw resides in Serv-U's implementation of the Secure Shell (SSH) protocol. While it was previously revealed that the attacks were limited in scope, SolarWinds said it's "unaware of the identity of the potentially affected customers." Attributing the intrusions with high confidence to DEV-0322 (short for "Development Group 0322") based on observed victimology, tactics, and procedures, Micr
Apple Issues Urgent Patches for 2 Zero-Day Flaws Exploited in the Wild

Apple Issues Urgent Patches for 2 Zero-Day Flaws Exploited in the Wild

Jun 15, 2021
Apple on Monday shipped out-of-band security patches to address two zero-day vulnerabilities in iOS 12.5.3 that it says are being actively exploited in the wild. The latest update, iOS 12.5.4 , comes with fixes for three security bugs, including a memory corruption issue in ASN.1 decoder (CVE-2021-30737) and two flaws concerning its WebKit browser engine that could be abused to achieve remote code execution — CVE-2021-30761  - A memory corruption issue that could be exploited to gain arbitrary code execution when processing maliciously crafted web content. The flaw was addressed with improved state management. CVE-2021-30762  - A use-after-free issue that could be exploited to gain arbitrary code execution when processing maliciously crafted web content. The flaw was resolved with improved memory management. Both CVE-2021-30761 and CVE-2021-30762 were reported to Apple anonymously, with the Cupertino-based company stating in its advisory that it's aware of reports that th
Another Google Chrome 0-Day Bug Found Actively Exploited In-the-Wild

Another Google Chrome 0-Day Bug Found Actively Exploited In-the-Wild

Mar 13, 2021
Google has addressed yet another actively exploited zero-day in Chrome browser, marking the second such fix released by the company within a month. The browser maker on Friday shipped 89.0.4389.90 for Windows, Mac, and Linux, which is expected to be rolling out over the coming days/weeks to all users. While the update contains a total of five security fixes, the most important flaw rectified by Google concerns a  use after free  vulnerability in its Blink rendering engine. The bug is tracked as CVE-2021-21193. Details about the flaw are scarce except that it was reported to Google by an anonymous researcher on March 9. According to IBM, the vulnerability is rated 8.8 out of 10 on the CVSS scale, and could allow a remote attacker to execute arbitrary code on the target system. "By persuading a victim to visit a specially crafted Web site, a remote attacker could exploit this vulnerability to execute arbitrary code or cause a denial of service condition on the system," the
ProxyLogon PoC Exploit Released; Likely to Fuel More Disruptive Cyber Attacks

ProxyLogon PoC Exploit Released; Likely to Fuel More Disruptive Cyber Attacks

Mar 11, 2021
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) and the Federal Bureau of Investigation (FBI) on Wednesday issued a joint advisory warning of active exploitation of vulnerabilities in Microsoft Exchange on-premises products by nation-state actors and cybercriminals. "CISA and FBI assess that adversaries could exploit these vulnerabilities to compromise networks, steal information, encrypt data for ransom, or even execute a destructive attack," the agencies  said . "Adversaries may also sell access to compromised networks on the dark web." The attacks have primarily targeted local governments, academic institutions, non-governmental organizations, and business entities in various industry sectors, including agriculture, biotechnology, aerospace, defense, legal services, power utilities, and pharmaceutical, which the agencies say are in line with previous activity conducted by Chinese cyber actors. Tens of thousands of entities, including the  Eur
Microsoft Exchange Cyber Attack — What Do We Know So Far?

Microsoft Exchange Cyber Attack — What Do We Know So Far?

Mar 08, 2021
Microsoft on Friday warned of active attacks exploiting unpatched Exchange Servers carried out by multiple threat actors, as the hacking campaign is believed to have infected tens of thousands of businesses, government entities in the U.S., Asia, and Europe. The company  said  "it continues to see increased use of these vulnerabilities in attacks targeting unpatched systems by multiple malicious actors beyond HAFNIUM," signaling an escalation that the breaches are no longer "limited and targeted" as was previously deemed. According to independent cybersecurity journalist  Brian Krebs , at least 30,000 entities across the U.S. — mainly small businesses, towns, cities, and local governments — have been compromised by an "unusually aggressive" Chinese group that has set its sights on stealing emails from victim organizations by exploiting previously undisclosed flaws in Exchange Server. Victims are also being reported from outside the U.S., with email s
Microsoft Issues Patches for In-the-Wild 0-day and 55 Others Windows Bugs

Microsoft Issues Patches for In-the-Wild 0-day and 55 Others Windows Bugs

Feb 10, 2021
Microsoft on Tuesday  issued fixes for 56 flaws , including a critical vulnerability that's known to be actively exploited in the wild. In all, 11 are listed as Critical, 43 are listed as Important, and two are listed as Moderate in severity — six of which are previously disclosed vulnerabilities. The updates cover .NET Framework, Azure IoT, Microsoft Dynamics, Microsoft Edge for Android, Microsoft Exchange Server, Microsoft Office, Microsoft Windows Codecs Library, Skype for Business, Visual Studio, Windows Defender, and other core components such as Kernel, TCP/IP, Print Spooler, and Remote Procedure Call (RPC). A Windows Win32k Privilege Escalation Vulnerability The most critical of the flaws is a Windows Win32k privilege escalation vulnerability (CVE-2021-1732, CVSS score 7.8) that allows attackers with access to a target system to run malicious code with elevated permissions. Microsoft credited JinQuan, MaDongZe, TuXiaoYi, and LiHao of DBAPPSecurity for discovering and re
Cisco Issues Warning Over IOS XR Zero-Day Flaw Being Targeted in the Wild

Cisco Issues Warning Over IOS XR Zero-Day Flaw Being Targeted in the Wild

Sep 01, 2020
Cisco has warned of an active zero-day vulnerability in its router software that's being exploited in the wild and could allow a remote, authenticated attacker to carry out memory exhaustion attacks on an affected device. "An attacker could exploit these vulnerabilities by sending crafted IGMP traffic to an affected device," Cisco said in an advisory posted over the weekend. "A successful exploit could allow the attacker to cause memory exhaustion, resulting in instability of other processes. These processes may include, but are not limited to, interior and exterior routing protocols." Although the company said it will release software fixes to address the flaw, it did not share a timeline for when it plans to make it available. The networking equipment maker said it became aware of attempts to exploit the flaw on August 28. Tracked as CVE-2020-3566 , the severity of the vulnerability has been rated "high" with a Common Vulnerability Scoring
Firefox Releases Critical Patch Update to Stop Ongoing Zero-Day Attacks

Firefox Releases Critical Patch Update to Stop Ongoing Zero-Day Attacks

Jun 19, 2019
Important Update [21 June 2019] — Mozilla on Thursday released another update Firefox version 67.0.4 to patch a second zero-day vulnerability. If you use the Firefox web browser, you need to update it right now. Mozilla earlier today released Firefox 67.0.3 and Firefox ESR 60.7.1 versions to patch a critical zero-day vulnerability in the browsing software that hackers have been found exploiting in the wild. Discovered and reported by Samuel Groß, a cybersecurity researcher at Google Project Zero, the vulnerability could allow attackers to remotely execute arbitrary code on machines running vulnerable Firefox versions and take full control of them. The vulnerability, identified as CVE-2019-11707 , affects anyone who uses Firefox on desktop (Windows, macOS, and Linux) — whereas, Firefox for Android, iOS, and Amazon Fire TV are not affected. According to an advisory , the flaw has been labeled as a type confusion vulnerability in Firefox that can result in an exploitable cras
New Unpatched macOS Flaw Lets Apps Spy On Your Safari Browsing History

New Unpatched macOS Flaw Lets Apps Spy On Your Safari Browsing History

Feb 12, 2019
A new security vulnerability has been discovered in the latest version of Apple's macOS Mojave that could allow a malicious application to access data stored in restricted folders which are otherwise not accessible to every app. Discovered by application developer Jeff Johnson on February 8, the vulnerability is unpatched at the time of writing and impacts all version of macOS Mojave, including macOS Mojave 10.14.3 Supplemental update released on February 7. Certain folders in macOS Mojave have restricted access that is forbidden by default, like ~/Library/Safari, which can be accessed by only a few applications, such as Finder. However, Johnson discovered a way to bypass these restrictions in Mojave, allowing applications to access ~/Library/Safari without needing any permission from the user or the system, and read users' web browsing history. "My bypass works with the 'hardened runtime' enabled," Johnson said in a blog post published last week.
Zerodium Offers to Buy Zero-Day Exploits at Higher Prices Than Ever

Zerodium Offers to Buy Zero-Day Exploits at Higher Prices Than Ever

Jan 08, 2019
Well, there's some good news for hackers and vulnerability hunters, though terrible news for tech manufacturers! Exploit vendor Zerodium is now willing to offer significantly higher payouts for full, working zero-day exploits that allow stealing of data from WhatsApp, iMessage and other online chat applications. Zerodium—a startup by the infamous French-based company Vupen that buys and sells zero-day exploits to government agencies around the world—said it would now pay up to $2 million for remote iOS jailbreaks and $1 million for exploits that target secure messaging apps. Get $2 Million for Remotely Jailbreaking An iPhone Previously, Zerodium was offering $1.5 million for persistent iOS jailbreaks that can be executed remotely without any user interaction (zero-click)—but now the company has increased that amount to $2 million. The company is now offering $1.5 million for a remote iOS jailbreak that requires minimal user interaction (i.e., single-click)—the amount h
Immediately Patch Windows 0-Day Flaw That's Being Used to Spread Spyware

Immediately Patch Windows 0-Day Flaw That's Being Used to Spread Spyware

Sep 13, 2017
Get ready to install a fairly large batch of security patches onto your Windows computers. As part of its September Patch Tuesday , Microsoft has released a large batch of security updates to patch a total of 81 CVE-listed vulnerabilities, on all supported versions of Windows and other MS products. The latest security update addresses 27 critical and 54 important vulnerabilities in severity, of which 38 vulnerabilities are impacting Windows, 39 could lead to Remote Code Execution (RCE). Affected Microsoft products include: Internet Explorer Microsoft Edge Microsoft Windows .NET Framework Skype for Business and Lync Microsoft Exchange Server Microsoft Office, Services and Web Apps Adobe Flash Player .NET 0-Day Flaw Under Active Attack According to the company, four of the patched vulnerabilities are publicly known, one of which has already been actively exploited by the attackers in the wild. Here's the list of publically known flaws and their impact: W
Google Does It Again: Discloses Unpatched Microsoft Edge and IE Vulnerability

Google Does It Again: Discloses Unpatched Microsoft Edge and IE Vulnerability

Feb 25, 2017
This month has yet been kind of interesting for cyber security researchers, with Google successfully cracked SHA1 and the discovery of Cloudbleed bug in Cloudflare that caused the leakage of sensitive information across sites hosted behind Cloudflare. Besides this, Google last week disclosed an unpatched vulnerability in Windows Graphics Device Interface (GDI) library, which affects Microsoft's Windows operating systems ranging from Windows Vista Service Pack 2 to the latest Windows 10. While the Windows vulnerability has yet to be patched by the company, Google today released the details of another unpatched Windows security flaw in its browser, as Microsoft did not act within its 90-day disclosure deadline. The vulnerability (CVE-2017-0037), discovered and disclosed by Google Project Zero team's researcher Ivan Fratric, is a so-called " type confusion flaw " in a module in Microsoft Edge and Internet Explorer that potentially leads to arbitrary code exec
Zero-Day Warning! Ransomware targets Microsoft Office 365 Users

Zero-Day Warning! Ransomware targets Microsoft Office 365 Users

Jun 28, 2016
If just relying on the security tools of Microsoft Office 365 can protect you from cyber attacks, you are wrong. Variants of Cerber Ransomware are now targeting MS Office 365 email users with a massive zero-day attack that has the ability to bypass Office 365's built-in security tools. According to a report published by cloud security provider Avanan, the massive zero-day Cerber ransomware attack targeted Microsoft Office 365 users with spam or phishing emails carrying malicious file attachments. The Cerber ransomware is invoked via Macros. Yes, it's hard to believe but even in 2016, a single MS Office document could compromise your system by enabling ' Macros '. Locky and Dridex ransomware malware also made use of the malicious Macros to hijack systems. Over $22 Million were pilfered from the UK banks with the Dridex Malware that got triggered via a nasty macro virus. You can see a screenshot of the malicious document in the latest malware campaign belo
Adobe releases another Emergency Security Patch for Flash Player

Adobe releases another Emergency Security Patch for Flash Player

Feb 22, 2014
Security Firm FireEye has uncovered yet another critical zero-day vulnerability in widely used Adobe Flash Software and Adobe has been forced to issue a second emergency patch update  in less than a month. All versions of Adobe Flash Player released before today's patch are vulnerable to the zero-day exploit and the patch addresses a critical vulnerability  CVE-2014-0502 , being used in a watering hole attack -dubbed " Operation Greedywonk",  that allows attackers to remotely take control of infected systems. The vulnerability affects the latest versions of Flash, is reported to be targeting the websites of three non-profit institutions, being redirected to an malicious server hosting the zero-day exploit. " Visitors to the Peter G. Peterson Institute for International Economics (www.piie[.]com) were redirected to an exploit server hosting this Flash zero-day through a hidden iframe ." FireEye said. Security updates tackle a number of flaws includi
Internet Explorer zero-day vulnerability actively being exploited in the wild

Internet Explorer zero-day vulnerability actively being exploited in the wild

Nov 11, 2013
Security researchers at FireEye have detected a new series of drive-by attacks based on a new Internet Explorer zero-day vulnerability. The attackers breached a website based in the US to deploy the exploit code to conduct a classic watering hole attack. The discovery was announced just a few days after Microsoft revealed the Microsoft Zero-day CVE-2013-3906 , a Zero-day vulnerability in Microsoft graphics component that is actively exploited in targeted attacks using crafted Word documents sent by email. Microsoft graphics component zero-day vulnerability allows attackers to install a malware via infected Word documents and target Microsoft Office users running on Windows Vista and Windows Server 2008. Recently reported new Internet Explorer zero-day vulnerability detected by FireEye affects the English versions of IE 7 and 8 in Windows XP and IE 8 on Windows 7, but according the experts it can be easily changed to leverage other languages. Experts at FireEye conf
NSA bought Hacking tools from 'Vupen', a French based zero-day Exploit Seller

NSA bought Hacking tools from 'Vupen', a French based zero-day Exploit Seller

Sep 18, 2013
The US government, particularly the National Security Agency  has been paying a French security firm for backdoors and zero day hacks. According to a contract newly released in response to a Freedom of Information request, last year the NSA purchased a 12-month subscription to a " binary analysis and exploits service " sold by Vupen, a zero-day Exploit Seller based in France. VUPEN is one of a handful of companies that sell software exploits and vulnerability details, who do original vulnerability research and develop exploits for bugs that they find. They Sold those exploits to the Governments and Law enforcement agencies. VUPEN has promised that the company only will sell its services to NATO countries and will not deal with oppressive regimes. It is unclear how much money the NSA spent on the Vupen exploits package because the cost has been redacted in the released contract. Last year, Vupen researchers successfully cracked Google's Chrome browser, but declined to
Microsoft issues Emergency Fix for Internet Explorer zero-day exploit

Microsoft issues Emergency Fix for Internet Explorer zero-day exploit

Sep 18, 2013
All supported versions of Internet Explorer are vulnerable to a zero-day Exploit that is currently being exploited in targeted attacks against IE 8 and IE 9, dubbed " CVE-2013-3893 MSHTML Shim Workaround ". Microsoft confirmed that the flaw was unknown before the attacks and that it is already working on an official patch, meantime Microsoft released an emergency software fix for Internet Explorer (IE) Web browser. Advisory noted that Microsoft is investigating public reports of a remote code execution vulnerability in Internet Explorer. This issue could allow remote code execution if an affected system browses to a website containing malicious content directed towards the specific browser type. Victims could be infected despite the adoption of all necessary countermeasures due the nature of the flaw previously unknown. The flaw that has been recently targeted by hackers during attacks is considerable serious and complicated to fix. State-sponsored hackin
Exploit Packs updated with New Java Zero-Day vulnerability

Exploit Packs updated with New Java Zero-Day vulnerability

Jan 10, 2013
A new Java 0-day vulnerability has been discovered, already wind in use by an exploit pack, taking advantage of a fresh zero-day vulnerability in Java and potentially letting hackers take over users' machines. Java 7 Update 10 and earlier contain an unspecified vulnerability that can allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable system. The flaw was first spotted by 'Malware Don't Need Coffee' blog . This vulnerability is being attacked in the wild, and is reported to be incorporated into exploit kits. This exploit is already available in two Exploit Packs, that is available for $700 a quarter or $1,500 for a year. Similar tactics were used in CVE-2012-4681 , which was discovered last August. Source of this new Exploit available to download Here . The two most popular exploits packs used by hackers to distribute malware, the BlackHole Exploit Kit and the Cool Exploit Kit already having this latest Java Zero-Day exploit. Blackhole ki
Zero-Day Vulnerability in Symantec PGP Whole Disk Encryption

Zero-Day Vulnerability in Symantec PGP Whole Disk Encryption

Jan 05, 2013
Symantec product PGP Whole Disk Encryption which is used to encrypt all the contents on the disk on a block-by-block basis having Zero-Day Vulnerability, according to a pastebin note . Note was posted on 25th Dec by Nikita Tarakanov , claiming that  pgpwded.sys kernel driver distributed with Symantec PGP Desktop contains an arbitrary memory overwrite vulnerability. Affected version of software is Symantec PGP Desktop 10.2.0 Build 2599 (up-to date). Through a blog post , Symantec confirmed that its a potential issue, but it cannot easily be exploited. Vulnerability is limited to systems running Windows XP and Windows 2003 only. An attacker would need local access to a vulnerable computer to exploit this vulnerability. Note posted by Nikita also provide technical details on the issue, that help Symantec encryption engineering team to understand the issue. " However, the exploit would be very difficult to trigger as it relies on the system entering an error condition f
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