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Category — Internet Explorer
CISA Adds Twilio Authy and IE Flaws to Exploited Vulnerabilities List

CISA Adds Twilio Authy and IE Flaws to Exploited Vulnerabilities List

Jul 24, 2024 Vulnerability / Software Security
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added two security flaws to its Known Exploited Vulnerabilities ( KEV ) catalog, based on evidence of active exploitation. The vulnerabilities are listed below - CVE-2012-4792 (CVSS score: 9.3) - Microsoft Internet Explorer Use-After-Free Vulnerability CVE-2024-39891 (CVSS score: 5.3) - Twilio Authy Information Disclosure Vulnerability CVE-2012-4792 is a decade-old use-after-free vulnerability in Internet Explorer that could allow a remote attacker to execute arbitrary code via a specially crafted site. It's currently not clear if the flaw has been subjected to renewed exploitation attempts, although it was abused as part of watering hole attacks targeting the Council on Foreign Relations (CFR) and Capstone Turbine Corporation websites back in December 2012. On the other hand, CVE-2024-39891 refers to an information disclosure bug in an unauthenticated endpoint that could be exploited to "accept
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 BenoĂ®t Sevens and ClĂ©ment 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
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Microsoft Warns of Unpatched IE Browser Zero-Day That's Under Active Attacks

Microsoft Warns of Unpatched IE Browser Zero-Day That's Under Active Attacks

Jan 18, 2020
Internet Explorer is dead, but not the mess it left behind. Microsoft earlier today issued an emergency security advisory warning millions of Windows users of a new zero-day vulnerability in Internet Explorer (IE) browser that attackers are actively exploiting in the wild — and there is no patch yet available for it. The vulnerability, tracked as CVE-2020-0674 and rated moderated, is a remote code execution issue that exists in the way the scripting engine handles objects in memory of Internet Explorer and triggers through JScript.dll library. A remote attacker can execute arbitrary code on targeted computers and take full control over them just by convincing victims into opening a maliciously crafted web page on the vulnerable Microsoft browser. "The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as
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Microsoft Releases Emergency Patches for IE 0-Day and Windows Defender Flaw

Microsoft Releases Emergency Patches for IE 0-Day and Windows Defender Flaw

Sep 24, 2019
It's not a Patch Tuesday, but Microsoft is rolling out emergency out-of-band security patches for two new vulnerabilities, one of which is a critical Internet Explorer zero-day that cyber criminals are actively exploiting in the wild. Discovered by Clément Lecigne of Google's Threat Analysis Group and tracked as CVE-2019-1367, the IE zero-day is a remote code execution vulnerability in the way Microsoft's scripting engine handles objects in memory in Internet Explorer. The vulnerability is a memory-corruption issue that could allow a remote attacker to hijack a Windows PC just by convincing the user into viewing a specially crafted, booby-trapped web-page hosted online, when using Internet Explorer. "An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affec
Update: Hacker Disclosed 4 New Microsoft Zero-Day Exploits in Last 24 Hours

Update: Hacker Disclosed 4 New Microsoft Zero-Day Exploits in Last 24 Hours

May 23, 2019
Less than 24 hours after publicly disclosing an unpatched zero-day vulnerability in Windows 10 , the anonymous hacker going by online alias "SandboxEscaper" has now dropped new exploits for two more unpatched Microsoft zero-day vulnerabilities. The two new zero-day vulnerabilities affect Microsoft's Windows Error Reporting service and Internet Explorer 11. Just yesterday, while releasing a Windows 10 zero-day exploit for a local privilege escalation bug in Task Scheduler utility, SandboxEscaper claimed to have discovered four more zero-day bugs, exploits for two has now been publicly released. AngryPolarBearBug2 Windows Bug One of the latest Microsoft zero-day vulnerabilities resides in the Windows Error Reporting service that can be exploited using a discretionary access control list (DACL) operation—a mechanism that identifies users and groups that are assigned or denied access permissions to a securable object. Upon successful exploitation, an attacker can del
Unpatched Zero-Days in Microsoft Edge and IE Browsers Disclosed Publicly

Unpatched Zero-Days in Microsoft Edge and IE Browsers Disclosed Publicly

Mar 30, 2019
Exclusive — A security researcher today publicly disclosed details and proof-of-concept exploits for two 'unpatched' zero-day vulnerabilities in Microsoft's web browsers after the company allegedly failed to respond to his responsible private disclosure. Both unpatched vulnerabilities—one of which affects the latest version of Microsoft Internet Explorer and another affects the latest Edge Browser —allow a remote attacker to bypass same-origin policy on victim's web browser. Same Origin Policy (SOP) is a security feature implemented in modern browsers that restricts a web-page or a script loaded from one origin to interact with a resource from another origin, preventing unrelated sites from interfering with each other. In other words, if you visit a website on your web browser, it can only request data from the same origin [domain] the site was loaded from, preventing it from making any unauthorized request on your behalf in order to steal your data, from othe
Microsoft Issues Emergency Patch For Under-Attack IE Zero Day

Microsoft Issues Emergency Patch For Under-Attack IE Zero Day

Dec 20, 2018
Microsoft today issued an out-of-band security update to patch a critical zero-day vulnerability in Internet Explorer (IE) Web browser that attackers are already exploiting in the wild to hack into Windows computers. Discovered by security researcher Clement Lecigne of Google's Threat Analysis Group, the vulnerability, tracked as CVE-2018-8653, is a remote code execution (RCE) flaw in the IE browser's scripting engine. According to the advisory, an unspecified memory corruption vulnerability resides in the scripting engine JScript component of Microsoft Internet Explorer that handles execution of scripting languages. If exploited successfully, the vulnerability could allow attackers to execute arbitrary code in the context of the current user. "If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change,
Chrome, Firefox, Edge and Safari Plans to Disable TLS 1.0 and 1.1 in 2020

Chrome, Firefox, Edge and Safari Plans to Disable TLS 1.0 and 1.1 in 2020

Oct 15, 2018
All major web browsers, including Google Chrome, Apple Safari, Microsoft Edge, Internet Explorer, and Mozilla Firefox, altogether today announced to soon remove support for TLS 1.0 (20-year-old) and TLS 1.1 (12-year-old) communication encryption protocols. Developed initially as Secure Sockets Layer (SSL) protocol, Transport Layer Security (TLS) is an updated cryptographic protocol used to establish a secure and encrypted communications channel between clients and servers. There are currently four versions of the TLS protocol—TLS 1.0, 1.1, 1.2 and 1.3 ( latest )—but older versions, TLS 1.0 and 1.1, are known to be vulnerable to a number of critical attacks, such as  POODLE  and  BEAST . Since TLS implementation in all major web browsers and applications supports downgrade negotiation process, it leaves an opportunity for attackers to exploit weaker protocols even if a server supports the latest version. All Major Web Browsers Will Remove TLS 1.0 and TLS 1.1 Support in 2020
Microsoft Releases Patches for 60 Flaws—Two Under Active Attack

Microsoft Releases Patches for 60 Flaws—Two Under Active Attack

Aug 14, 2018
Get your update caps on. Just a few minutes ago Microsoft released its latest monthly Patch Tuesday update for August 2018, patching a total of 60 vulnerabilities, of which 19 are rated as critical. The updates patch flaws in Microsoft Windows, Edge Browser, Internet Explorer, Office, ChakraCore, .NET Framework, Exchange Server, Microsoft SQL Server and Visual Studio. Two of these vulnerabilities patched by the tech giant is listed as publicly known and being exploited in the wild at the time of release. According to the advisory released by Microsoft, all 19 critical-rated vulnerabilities lead to remote code execution (RCE), some of which could eventually allow attackers to take control of the affected system if exploited successfully. Besides this, Microsoft has also addressed 39 important flaws, one moderate and one low in severity. Here below we have listed brief details of a few critical and publically exploited important vulnerabilities: Internet Explorer Memory Co
Microsoft Engineer Installs Google Chrome Mid-Presentation After Edge Kept Crashing

Microsoft Engineer Installs Google Chrome Mid-Presentation After Edge Kept Crashing

Nov 01, 2017
Ever since the launch of Windows 10, Microsoft has been heavily pushing its Edge browser, claiming it to be the best web browser over its competitors like Mozilla Firefox, Opera and Google Chrome in terms of speed and battery performance. However, Microsoft must admit that most users make use of Edge or Internet Explorer only to download Chrome, which is by far the world's most popular internet browser. Something hilarious happened recently during a live demonstration when a Microsoft engineer caught on a video switching from Edge to Chrome after the default Windows 10 browser stopped responding in the middle of the presentation. That is really embarrassing. The incident happened in the middle of a Microsoft Ignite conference, where the Microsoft presenter Michael Leworthy was demonstrating how to one can migrate their applications and data to Microsoft Azure cloud service. See what happens in the video below: However, Leworthy was forced to pause his Azure presenta
Microsoft releases tons of Security Updates to patch 44 vulnerabilities

Microsoft releases tons of Security Updates to patch 44 vulnerabilities

Jun 15, 2016
Microsoft has released 16 security bulletins on Tuesday resolving a total of 44 security holes in its software, including Windows, Office, Exchange Server, Internet Explorer and Edge. Five bulletins have been rated "critical" that could be used to carry out remote code execution and affected: Windows, Internet Explorer (IE), Edge (the new, improved IE), Microsoft Office and Office services; and the remaining 11 are marked important. One of the critical issues, MS16-071 that caused alarm bells to go off for many security experts involves a Use-After-Free bug (CVE-2016-3227), which affects Microsoft Windows Domain Name System (DNS) servers for Windows Server 2012 and 2012 R2. The vulnerability resides in the way servers handle requests. Attackers could send a specially crafted request to a DNS server and convinced it to run arbitrary code in the context of the Local System Account, Microsoft's advisory warns. Another critical vulnerability is addressed in MS16-070, which patc
Microsoft Edge's InPrivate Mode Finally Keeps Your Activity Private

Microsoft Edge's InPrivate Mode Finally Keeps Your Activity Private

Feb 12, 2016
Browsing the Web in ' Private Mode ' is not as private as you think. Microsoft has patched the Private Browsing Leakage bug in its newest Edge browser with the latest update . When we talk about Browsers, only one thing which does not strike our mind is Internet Explorer or IE. Even there were some trolls on Internet Explorer (IE) waving over the social medias such as "The best web browser to download other browsers." In fact, it was justified as everyone downloads a new browser with IE in their newly installed Operating System. Due to the continual taunts, Microsoft had scrapped the entire IE and made a new browser called " Edge Browser " (Codenamed "Spartan"). Edge was shipped as the default browser (along with IE) with Windows 10 devices and grabbed the attention of many eye pupils as it included all the features that other mainstream browsers have. Well, History Repeats Itself In January this year, it was
From Today Onwards, Don't You Even Dare to Use Microsoft Internet Explorer

From Today Onwards, Don't You Even Dare to Use Microsoft Internet Explorer

Jan 12, 2016
Yes, from today, Microsoft is ending the support for versions 8, 9 and 10 of its home-built browser Internet Explorer, thereby encouraging Windows users to switch on to Internet Explorer version 11 or its newest Edge browser . Microsoft is going to release one last patch update for IE8, IE9 and IE10 today, but this time along with an " End of Life " notice, meaning Microsoft will no longer support the older versions. So, if you want to receive continuous updates for your web browser and avoid being exposed to potential security risks after 12 January, you are advised to upgrade your browser to Internet Explorer 11, or its new Edge browser. End of Life of Internet Explorer 8, 9 and 10  "Internet Explorer 11 is the last version of Internet Explorer, and will continue to receive security updates, compatibility fixes, and technical support on Windows 7, Windows 8.1, and Windows 10," Microsoft says . This move could be part of Microsoft's bigger
Patch Report: All Versions of Windows affected by Critical Vulnerability

Patch Report: All Versions of Windows affected by Critical Vulnerability

Oct 14, 2015
Microsoft has rolled out six security updates this Patch Tuesday , out of which three are considered to be " critical, " while the rest are marked as " important. " Bulletin MS15-106 is considered to be critical for Internet Explorer (IE) and affects absolutely all versions of Windows operating system. The update addresses a flaw in the way IE handles objects in memory. The flaw could be exploited to gain access to an affected system, allowing hackers to gain the same access rights as the logged-in user. A hacker could " take advantage of compromised websites, and websites that accept or host user-provided content or advertisements ," the advisory states. " These websites could contain specially crafted content that could exploit the vulnerabilities. " Therefore, the dependency here is that an IE user must knowingly click on the malicious link, which then be leveraged by an attacker to get the full control over a computer t
Microsoft Releases 12 Security Updates (5 Critical and 7 Important Patches)

Microsoft Releases 12 Security Updates (5 Critical and 7 Important Patches)

Sep 09, 2015
With the release of 12 Security Bulletins , Microsoft addresses a total of 56 vulnerabilities in its different products. The bulletins include five critical updates, out of which two address vulnerabilities in all versions of Windows. The September Patch Tuesday update (released on second Tuesday of each month) makes a total of 105 Security Bulletins being released this year; which is more than the previous year with still three months remaining for the current year to end. The reason for the increase in the total number of security bulletins within such less time might be because of Windows 10 release and its installation reaching to a score of 100 million. Starting from MS15-094 to   MS15-105 ( 12 security bulletins ) Microsoft rates the severity of the vulnerabilities and their impact on the affected software. Bulletins MS15-094 and MS15-095 are the cumulative updates, meaning these are product-specific fixes for security related vulnerabilities that are rated
Oh Gosh! Four Zero Day Vulnerabilities Disclosed in Internet Explorer

Oh Gosh! Four Zero Day Vulnerabilities Disclosed in Internet Explorer

Jul 24, 2015
How many Zero-Days do you think could hit Microsoft today? Neither one nor two; this times its Four. The Hewlett-Packard's Zero-Day Initiative (ZDI) has disclosed four new zero-day vulnerabilities in Microsoft's Internet Explorer browser that could be exploited to remotely execute malicious code on victim's machine. All the four zero-days originally were reported to Microsoft, affecting Internet Explorer on the desktop. However, later it was discovered that the zero-day vulnerabilities affected Internet Explorer Mobile on Windows Phones as well. Each of the four zero-day flaws affects different components of the browser, and all are remotely exploitable through typical drive-by attacks. Four Zero-day vulnerabilities Disclosed by ZDI Here are the zero-day vulnerabilities, as reported by ZDI: ZDI-15-359: AddRow Out-Of-Bounds Memory Access Vulnerability ZDI-15-360: Use-After-Free Remote Code Execution Vulnerability ZDI-15-361: Use-After-Free Rem
Earn up to $15,000 for Hacking Microsoft Spartan Browser

Earn up to $15,000 for Hacking Microsoft Spartan Browser

Apr 23, 2015
If you're a bug hunter and love playing with codes than you could grab as much as US$15,000 from Microsoft for finding out vulnerabilities in its latest Project Spartan browser . Yes, $15,000! It seems like Redmond don't want to take a chance to let hackers and cyber criminals get their hands on the company's latest Windows 10 operating system. On Wednesday, Microsoft announced that the company will be expanding its bug bounty program ahead of the release of Windows 10, which will include a two-month hunt for vulnerabilities in its new web browser, Project Spartan. So, it's time for security researchers and hackers to earn extra cash from Microsoft. For those who are unaware… What's Project Spartan? Project Spartan is Microsoft's project for its new web browser to replace the oldest Internet Explorer from its Windows operating system. Though the project is still very much under the developmental stage, Microsoft is making every effort to make Spartan
Microsoft Internet Explorer Universal Cross-Site Scripting Flaw

Microsoft Internet Explorer Universal Cross-Site Scripting Flaw

Feb 04, 2015
A serious vulnerability has been discovered in all the latest versions of Microsoft's Internet Explorer that allows malicious hackers to inject malicious code into users' websites and steal cookies, session and login credentials. UNIVERSAL XSS BUG WITH SAME ORIGIN POLICY BYPASS The vulnerability is known as a Universal Cross Site Scripting (XSS) flaw. It allows attackers to bypass the Same-Origin Policy, a fundamental browser security mechanism, in order to launch highly credible phishing attacks or hijack users' accounts on any website. The Same Origin Policy is one of the guiding principles that seek to protect users' browsing experience. SOP actually prevents one site from accessing or modifying the browser properties, such as cookies, location, response etc, by any other site, ensuring that no third-party can inject code without the authorization of the owner of the website. DEMONSTRATION Recently, a proof-of-concept exploit published by a group, known as Deusen, sho
Microsoft Ends Windows 7 Mainstream Support

Microsoft Ends Windows 7 Mainstream Support

Jan 16, 2015
On January 13, 2015, Microsoft's mainstream support for Windows 7 Service Pack (SP) 1 ended, which means the end of free Windows 7's " mainstream support " period, with the operating system now entering "extended support." Many people are still running the aging Windows XP as well as Windows 7. Microsoft already ended its support for Windows XP officially about a year ago on April 8, 2014, and now the company found Windows 7 an old and cranky OS. END OF MAINSTREAM SUPPORT FOR WINDOWS 7 BUT NO WORRIES UNTIL 2020 However, it doesn't mean that the tech giant is going to automatically stop or break your operating system, but it does mean that the company will no longer offer free help and support in case you have any problem with your Windows 7 software. No new features will be added either. Windows 7 is still supported by the company and will continue to receive security updates for at least another five years, i.e. until Jan. 14, 2020. By
Microsoft Could Kill Internet Explorer; New Spartan Browser Coming Soon

Microsoft Could Kill Internet Explorer; New Spartan Browser Coming Soon

Dec 30, 2015
Bad News for Internet Explorer fans, if any! Microsoft's almost 20 years old Web browser with a big blue E sign might soon be a thing of the past. With the arrival of Windows 10 , probably by next fall, Microsoft could come up with its brand new browser that's more similar to Mozilla's Firefox and Google's Chrome, but less like Internet Explorer (IE), according to a recent report published by ZDNet. "Ok so Microsoft is about to launch a new browser that's not Internet Explorer and will be the default browser in Windows 10," tweeted Thomas Nigro, a Microsoft Student Partner lead and developer of the modern version of VLC. The browser, codenamed " Spartan ," is a " light-weight " browser with extension support, and multiple sources confirm that this new browser isn't IE12. Instead, Spartan is an entirely new browser that will use Microsoft's Chakra JavaScript engine and Trident rendering engine (as opposed to WebKit
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