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Bitcoin Core Software Patches a Critical DDoS Attack Vulnerability

Bitcoin Core Software Patches a Critical DDoS Attack Vulnerability

Sep 25, 2018
The Bitcoin Core development team has released an important update to patch a major DDoS vulnerability in its underlying software that could have been fatal to the Bitcoin Network, which is usually known as the most hack-proof and secure blockchain. The DDoS vulnerability, identified as CVE-2018-17144, has been found in the Bitcoin Core wallet software, which could potentially be exploited by anyone capable of mining BTC to crash Bitcoin Core nodes running software versions 0.14.0 to 0.16.2. In other words, Bitcoin miners could have brought down the entire blockchain either by overflooding the block with duplicate transactions, resulting in blockage of transaction confirmation from other people or by flooding the nodes of the Bitcoin P2P network and over-utilizing the bandwidth. The vulnerability had been around since March last year, but the team says nobody noticed the bug or nobody was willing to incur the expense of exploiting it. According to the bitcoin core developers
Researcher Discloses New Zero-Day Affecting All Versions of Windows

Researcher Discloses New Zero-Day Affecting All Versions of Windows

Sep 21, 2018
A security researcher has publicly disclosed an unpatched zero-day vulnerability in all supported versions of Microsoft Windows operating system (including server editions) after the company failed to patch a responsibly disclosed bug within the 120-days deadline. Discovered by Lucas Leong of the Trend Micro Security Research team, the zero-day vulnerability resides in Microsoft Jet Database Engine that could allow an attacker to remotely execute malicious code on any vulnerable Windows computer. The Microsoft JET Database Engine, or simply JET (Joint Engine Technology), is a database engine integrated within several Microsoft products, including Microsoft Access and Visual Basic. According to the an  advisory  released by Zero Day Initiative (ZDI), the vulnerability is due to a problem with the management of indexes in the Jet database engine that, if exploited successfully, can cause an out-out-bounds memory write, leading to remote code execution. An attacker must convi
Making Sense of Operational Technology Attacks: The Past, Present, and Future

Making Sense of Operational Technology Attacks: The Past, Present, and Future

Mar 21, 2024Operational Technology / SCADA Security
When you read reports about cyber-attacks affecting operational technology (OT), it's easy to get caught up in the hype and assume every single one is sophisticated. But are OT environments all over the world really besieged by a constant barrage of complex cyber-attacks? Answering that would require breaking down the different types of OT cyber-attacks and then looking back on all the historical attacks to see how those types compare.  The Types of OT Cyber-Attacks Over the past few decades, there has been a growing awareness of the need for improved cybersecurity practices in IT's lesser-known counterpart, OT. In fact, the lines of what constitutes a cyber-attack on OT have never been well defined, and if anything, they have further blurred over time. Therefore, we'd like to begin this post with a discussion around the ways in which cyber-attacks can either target or just simply impact OT, and why it might be important for us to make the distinction going forward. Figure 1 The Pu
Flaw in 4GEE WiFi Modem Could Leave Your Computer Vulnerable

Flaw in 4GEE WiFi Modem Could Leave Your Computer Vulnerable

Sep 21, 2018
A high-severity vulnerability has been discovered in 4G-based wireless 4GEE Mini modem sold by mobile operator EE that could allow an attacker to run a malicious program on a targeted computer with the highest level of privileges in the system. The vulnerability—discovered by 20-year-old Osanda Malith , a Sri Lankan security researcher at ZeroDayLab—can be exploited by a low privileged user account to escalate privileges on any Windows computer that had once connected to the EE Mini modem via USB. This, in turn, would allow an attacker to gain full system access to the targeted remote computer and thereby, perform any malicious actions, such as installing malware, rootkits, keylogger, or stealing personal information. 4G Mini WiFi modem is manufactured by Alcatel and sold by EE, a mobile operator owned by BT Group— Britain's largest digital communications company that serves over 31 million connections across its mobile, fixed and wholesale networks. How Does the Attack
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Automated remediation solutions are crucial for security

websiteWing SecurityShadow IT / SaaS Security
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Western Digital's My Cloud NAS Devices Turn Out to Be Easily Hacked

Western Digital's My Cloud NAS Devices Turn Out to Be Easily Hacked

Sep 19, 2018
Security researchers have discovered an authentication bypass vulnerability in Western Digital's My Cloud NAS devices that potentially allows an unauthenticated attacker to gain admin-level control to the affected devices. Western Digital's My Cloud (WD My Cloud) is one of the most popular network-attached storage (NAS) devices which is being used by businesses and individuals to host their files, as well as backup and sync them with various cloud and web-based services. The WD My Cloud devices let users not only share files in a home network but its private cloud feature also allows them to access their data from anywhere around the world at any time. However, security researchers at Securify have discovered an authentication bypass vulnerability on the WD My Cloud NAS boxes that could allow unauthenticated attackers with network access to the device to escalate their privileges to admin-level without needing to provide a password. This would eventually allow attack
New Cold Boot Attack Unlocks Disk Encryption On Nearly All Modern PCs

New Cold Boot Attack Unlocks Disk Encryption On Nearly All Modern PCs

Sep 13, 2018
Security researchers have revealed a new attack to steal passwords, encryption keys and other sensitive information stored on most modern computers, even those with full disk encryption. The attack is a new variation of a traditional Cold Boot Attack , which is around since 2008 and lets attackers steal information that briefly remains in the memory (RAM) after the computer is shut down. However, to make the cold boot attacks less effective, most modern computers come bundled with a safeguard, created by the Trusted Computing Group (TCG), that overwrites the contents of the RAM when the power on the device is restored, preventing the data from being read. Now, researchers from Finnish cyber-security firm F-Secure figured out a new way to disable this overwrite security measure by physically manipulating the computer's firmware, potentially allowing attackers to recover sensitive data stored on the computer after a cold reboot in a matter of few minutes. "Cold boot
Tesla Model S Hack Could Let Thieves Clone Key Fobs to Steal Cars

Tesla Model S Hack Could Let Thieves Clone Key Fobs to Steal Cars

Sep 12, 2018
Despite having proper security measures in place to protect the driving systems of its cars against cyber attacks, a team of security researchers discovered a way to remotely hack a Tesla Model S luxury sedans in less than two seconds. Yes, you heard that right. A team of researchers from the Computer Security and Industrial Cryptography (COSIC) group of the Department of Electrical Engineering at the KU Leuven University in Belgium has demonstrated how it break the encryption used in Tesla's Model S wireless key fob. With $600 in radio and computing equipment that wirelessly read signals from a nearby Tesla owner's fob, the team was able to clone the key fob of Tesla's Model S, open the doors and drive away the electric sports car without a trace, according to Wired . "Today it's very easy for us to clone these key fobs in a matter of seconds," Lennert Wouters, one of the KU Leuven researchers, told Wired. "We can completely impersonate the key fob
Beware! Unpatched Safari Browser Hack Lets Attackers Spoof URLs

Beware! Unpatched Safari Browser Hack Lets Attackers Spoof URLs

Sep 12, 2018
A security researcher has discovered a serious vulnerability that could allow attackers to spoof website addresses in the Microsoft Edge web browser for Windows and Apple Safari for iOS. While Microsoft fixed the address bar URL spoofing vulnerability last month as part of its monthly security updates , Safari is still unpatched, potentially leaving Apple users vulnerable to phishing attacks. The phishing attacks today are sophisticated and increasingly more difficult to spot, and this newly discovered vulnerability takes it to another level that can bypass basic indicators like URL and SSL, which are the first things a user checks to determine if a website is fake. Discovered by Pakistan-based security researcher Rafay Baloch, the vulnerability (CVE-2018-8383) is due to a race condition type issue caused by the web browser allowing JavaScript to update the page address in the URL bar while the page is loading. Here's How the URL Spoofing Vulnerability Works Successfu
Adobe Issues ColdFusion Software Update for 6 Critical Vulnerabilities

Adobe Issues ColdFusion Software Update for 6 Critical Vulnerabilities

Sep 11, 2018
Adobe has released September 2018 security patch updates for a total of 10 vulnerabilities in Flash Player and ColdFusion, six of which are rated as critical that affected ColdFusion and could allow attackers to remotely execute arbitrary code on a vulnerable server. What's the good news this month for Adobe users? This month Adobe Acrobat and Reader applications did not receive any patch update, while Adobe Flash Player has received an update for just a single privilege escalation vulnerability (CVE-2018-15967) rated as important. Secondly, Adobe said none of the security vulnerabilities patched this month were either publicly disclosed or found being actively exploited in the wild. Total 9 Security Patches for Adobe ColdFusion Adobe has addressed a total of nine security vulnerabilities in its ColdFusion web application development platform, six of which are critical, two important and one moderate. According to the advisory released by Adobe, ColdFusion contain
Tor Browser Zero-Day Exploit Revealed Online – Patch Now

Tor Browser Zero-Day Exploit Revealed Online – Patch Now

Sep 10, 2018
Zerodium, the infamous exploit vendor that earlier this year offered $1 million for submitting a zero-day exploit for Tor Browser , today publicly revealed a critical zero-day flaw in the anonymous browsing software that could reveal your identity to the sites you visit. In a Tweet, Zerodium shared a zero-day vulnerability that resides in the NoScript browser plugin comes pre-installed with the Mozilla Firefox bundled in the Tor software. NoScript is a free browser extension that blocks malicious JavaScript, Java, Flash and other potentially dangerous content on all web pages by default, though users can whitelist sites they trust. According to Zerodium, NoScript "Classic" versions 5.0.4 to 5.1.8.6--with 'Safest' security level enabled--included in Tor Browser 7.5.6 can be bypassed to run any JavaScript file by changing its content-type header to JSON format. In other words, a website can exploit this vulnerability to execute malicious JavaScript on victim
Cisco Issues Security Patch Updates for 32 Flaws in its Products

Cisco Issues Security Patch Updates for 32 Flaws in its Products

Sep 06, 2018
Cisco today released thirty security patch advisory to address a total of 32 security vulnerabilities in its products, three of which are rated critical, including the recently disclosed Apache Struts remote code execution vulnerability that is being exploited in the wild. Out of the rest 29 vulnerabilities, fourteen are rated high and 15 medium in severity, addressing security flaws in Cisco Routers, Cisco Webex, Cisco Umbrella, Cisco SD-WAN Solution, Cisco Cloud Services Platform, Cisco Data Center Network, and more products. The three critical security vulnerabilities patched by Cisco address issues in Apache Struts, Cisco Umbrella API, and Cisco RV110W, RV130W and RV215W router's management interface. Apache Struts Remote Code Execution Vulnerability (CVE-2018-11776) The vulnerability, reported late last month by Semmle security researcher Man Yue Mo, resides in the core of Apache Struts and originates due to insufficient validation of user-provided untrusted inputs in
Hacker Discloses Unpatched Windows Zero-Day Vulnerability (With PoC)

Hacker Discloses Unpatched Windows Zero-Day Vulnerability (With PoC)

Aug 28, 2018
A security researcher has publicly disclosed the details of a previously unknown zero-day vulnerability in the Microsoft's Windows operating system that could help a local user or malicious program obtain system privileges on the targeted machine. And guess what? The zero-day flaw has been confirmed working on a "fully-patched 64-bit Windows 10 system." The vulnerability is a privilege escalation issue which resides in the Windows' task scheduler program and occured due to errors in the handling of Advanced Local Procedure Call (ALPC) systems. Advanced local procedure call (ALPC) is an internal mechanism, available only to Windows operating system components, that facilitates high-speed and secure data transfer between one or more processes in the user mode. The revelation of the Windows zero-day came earlier today from a Twitter user with online alias SandboxEscaper, who also posted a link to a Github page hosting a proof-of-concept (PoC) exploit for the
Adobe Issues Emergency Patches for Critical Flaws in Photoshop CC

Adobe Issues Emergency Patches for Critical Flaws in Photoshop CC

Aug 22, 2018
Adobe released an out-of-band security update earlier today to address two critical remote code execution vulnerabilities impacting Adobe Photoshop CC for Microsoft Windows and Apple macOS machines. According to the security advisory published Wednesday by Adobe, its Photoshop CC software is vulnerable to two critical memory corruption vulnerabilities, which could allow a remote attacker to execute arbitrary code in the context of the targeted user. The vulnerabilities, identified as CVE-2018-12810 and CVE-2018-12811, impact Adobe Photoshop CC 2018 version 19.1.5 and earlier 19.x versions, as well as Adobe Photoshop CC 2017 version 18.1.5 and earlier 18.x versions. The critical security flaws were discovered and reported by Kushal Arvind Shah of Fortinet's FortiGuard Labs, and have now been addressed by Adobe with the release of Photoshop CC versions 19.1.6 and 18.1.6. Also Read: Teen Arrested for Hacking into Apple's Network It should be noted that these RCE vu
Critical Flaws in Ghostscript Could Leave Many Systems at Risk of Hacking

Critical Flaws in Ghostscript Could Leave Many Systems at Risk of Hacking

Aug 22, 2018
Google Project Zero's security researcher has discovered a critical remote code execution (RCE) vulnerability in Ghostscript—an open source interpreter for Adobe Systems' PostScript and PDF page description languages. Written entirely in C, Ghostscript is a package of software that runs on different platforms, including Windows, macOS, and a wide variety of Unix systems, offering software the ability to convert PostScript language files (or EPS) to many raster formats, such as PDF, XPS, PCL or PXL. A lot of popular PDF and image editing software, including ImageMagick and GIMP, use Ghostscript library to parse the content and convert file formats. Ghostscript suite includes a built-in -dSAFER sandbox protection option that handles untrusted documents, preventing unsafe or malicious PostScript operations from being executed. However, Google Project Zero team researcher Tavis Ormandy discovered that Ghostscript contains multiple -dSAFER sandbox bypass vulnerabilities,
New PHP Code Execution Attack Puts WordPress Sites at Risk

New PHP Code Execution Attack Puts WordPress Sites at Risk

Aug 17, 2018
Sam Thomas, a security researcher from Secarma, has discovered a new exploitation technique that could make it easier for hackers to trigger critical deserialization vulnerabilities in PHP programming language using previously low-risk considered functions. The new technique leaves hundreds of thousands of web applications open to remote code execution attacks, including websites powered by some popular content management systems like WordPress and Typo3. PHP unserialization or object injection vulnerabilities were initially documented in 2009, which could allow an attacker to perform different kinds of attacks by supplying malicious inputs to the unserialize() PHP function. If you are unaware, serialization is the process of converting data objects into a plain string, and unserialize function help program recreate an object back from a string. Thomas found that an attacker can use low-risk functions against Phar archives to trigger deserialization attack without requiring
Chrome Bug Allowed Hackers to Find Out Everything Facebook Knows About You

Chrome Bug Allowed Hackers to Find Out Everything Facebook Knows About You

Aug 16, 2018
With the release of Chrome 68, Google prominently marks all non-HTTPS websites as 'Not Secure' on its browser to make the web a more secure place for Internet users. If you haven't yet, there is another significant reason to immediately switch to the latest version of the Chrome web browser. Ron Masas, a security researcher from Imperva, has discovered a vulnerability in web browsers that could allow attackers to find everything other web platforms, like Facebook and Google, knows about you—and all they need is just trick you into visiting a website. The vulnerability, identified as CVE-2018-6177 , takes advantage of a weakness in audio/video HTML tags and affects all web browsers powered by "Blink Engine," including Google Chrome. To illustrate the attack scenario, the researcher took an example of Facebook, a popular social media platform that collects in-depth profiling information on its users, including their age, gender, where you have been (loca
Widespread Instagram Hack Locking Users Out of Their Accounts

Widespread Instagram Hack Locking Users Out of Their Accounts

Aug 15, 2018
Instagram has been hit by a widespread hacking campaign that appears to stem from Russia and have affected hundreds of users over the past week, leaving them locked out of their accounts. A growing number of Instagram users are taking to social media, including Twitter and Reddit, to report a mysterious hack which involves locking them out of their account with their email addresses changed to .ru domains. According to victims, their account names, profile pictures, passwords, email addresses associated with their Instagram accounts, and even connected Facebook accounts are being changed in the attack. Many of the affected Instagram users are also complaining about their profile photos replaced with stills from popular films, including Despicable Me 3 and Pirates of the Caribbean. Although it is still unknown who is behind the widespread hack of Instagram accounts, the use of the email addresses originating from Russian email provider mail.ru may indicate a Russian hacker or
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
Adobe releases important security patches for its 4 popular software

Adobe releases important security patches for its 4 popular software

Aug 14, 2018
Adobe has released August 2018 security patch updates for a total of 11 vulnerabilities in its products, two of which are rated as critical that affect Adobe Acrobat and Reader software. The vulnerabilities addressed in this month updates affect Adobe Flash Player, Creative Cloud Desktop Application, Adobe Experience Manager, Adobe Acrobat and Reader applications. None of the security vulnerabilities patched this month were either publicly disclosed or found being actively exploited in the wild. Adobe Acrobat and Reader (Windows and macOS) Security researchers from Trend Micro's Zero Day Initiative and Cybellum Technologies have discovered and reported two critical arbitrary code execution vulnerabilities respectively in Acrobat DC and Acrobat Reader DC for Windows and macOS. According to the Adobe advisory, the flaw (CVE-2018-12808) reported by Cybellum Technologies is an out-of-bounds write flaw, whereas the bug (CVE-2018-12799) reported by Zero Day Initiative is an
New Man-in-the-Disk attack leaves millions of Android phones vulnerable

New Man-in-the-Disk attack leaves millions of Android phones vulnerable

Aug 14, 2018
Security researchers at Check Point Software Technologies have discovered a new attack vector against the Android operating system that could potentially allow attackers to silently infect your smartphones with malicious apps or launch denial of service attacks. Dubbed Man-in-the-Disk , the attack takes advantage of the way Android apps utilize 'External Storage' system to store app-related data, which if tampered could result in code injection in the privileged context of the targeted application. It should be noted that apps on the Android operating system can store its resources on the device in two locations—internal storage and external storage. Google itself offers guidelines to Android application developers urging them to use internal storage, which is an isolated space allocated to each application protected using Android's built-in sandbox, to store their sensitive files or data. However, researchers found that many popular apps—including Google Translate
ex-NSA Hacker Discloses macOS High Sierra Zero-Day Vulnerability

ex-NSA Hacker Discloses macOS High Sierra Zero-Day Vulnerability

Aug 13, 2018
Your Mac computer running the Apple's latest High Sierra operating system can be hacked by tweaking just two lines of code, a researcher demonstrated at the Def Con security conference on Sunday. Patrick Wardle, an ex-NSA hacker and now Chief Research Officer of Digita Security, uncovered a critical zero-day vulnerability in the macOS operating system that could allow a malicious application installed in the targeted system to virtually "click" objects without any user interaction or consent. To know, how dangerous it can go, Wardle explains : "Via a single click, countless security mechanisms may be completely bypassed. Run untrusted app? Click...allowed. Authorize keychain access? Click...allowed. Load 3rd-party kernel extension? Click...allowed. Authorize outgoing network connection? click ...allowed." Wardle described his research into "synthetic" interactions with a user interface (UI) as "The Mouse is Mightier than the Sword,"
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