remote code execution | Breaking Cybersecurity News | The Hacker News

Remember SambaCry ? Almost two months ago, we reported about a 7-year-old critical remote code execution vulnerability in Samba networking software, allowing a hacker to remotely take full control of a vulnerable Linux and Unix machines. We dubbed the vulnerability as SambaCry, because of its similarities to the Windows SMB vulnerability exploited by the WannaCry ransomware that wreaked havoc across the world over two months ago. Despite being patched in late May, the vulnerability is currently being leveraged by a new piece of malware to target the Internet of Things (IoT) devices, particularly Network Attached Storage (NAS) appliances, researchers at Trend Micro warned . For those unfamiliar: Samba is open-source software (re-implementation of SMB/CIFS networking protocol), which offers Linux/Unix servers with Windows-based file and print services and runs on the majority of operating systems, including Linux, UNIX, IBM System 390, and OpenVMS. Shortly after the publi

Security researchers have discovered a critical remotely exploitable vulnerability in an open-source software development library used by major manufacturers of the Internet-of-Thing devices that eventually left millions of devices vulnerable to hacking. The vulnerability (CVE-2017-9765), discovered by researchers at the IoT-focused security firm Senrio, resides in the software development library called gSOAP toolkit (Simple Object Access Protocol) — an advanced C/C++ auto-coding tool for developing XML Web services and XML application. Dubbed " Devil's Ivy ," the stack buffer overflow vulnerability allows a remote attacker to crash the SOAP WebServices daemon and could be exploited to execute arbitrary code on the vulnerable devices. The Devil's Ivy vulnerability was discovered by researchers while analysing an Internet-connected security camera manufactured by Axis Communications. "When exploited, it allows an attacker to remotely access a video

Identities now transcend human boundaries. Within each line of code and every API call lies a non-human identity. These entities act as programmatic access keys, enabling authentication and facilitating interactions among systems and services, which are essential for every API call, database query, or storage account access. As we depend on multi-factor authentication and passwords to safeguard human identities, a pressing question arises: How do we guarantee the security and integrity of these non-human counterparts? How do we authenticate, authorize, and regulate access for entities devoid of life but crucial for the functioning of critical systems? Let's break it down. The challenge Imagine a cloud-native application as a bustling metropolis of tiny neighborhoods known as microservices, all neatly packed into containers. These microservices function akin to diligent worker bees, each diligently performing its designated task, be it processing data, verifying credentials, or

Nothing in this world is fully secure, from our borders to cyberspace. I know vulnerabilities are bad, but the worst part comes in when people just don't care to apply patches on time. Late last year, Cisco's Talos intelligence and research group discovered three critical remote code execution (RCE) vulnerabilities in Memcached that exposed major websites including Facebook, Twitter, YouTube, Reddit, to hackers. Memcached is a popular open-source and easily deployable distributed caching system that allows objects to be stored in memory. The Memcached application has been designed to speed up dynamic web applications ( for example php-based websites) by reducing stress on the database that helps administrators to increase performance and scale web applications. It's been almost eight months since the Memcached developers have released patches for three critical RCE vulnerabilities (CVE-2016-8704, CVE-2016-8705 and CVE-2016-8706) but tens of thousands of servers

A highly critical vulnerability has been discovered in the Cisco Systems' WebEx browser extension for Chrome and Firefox, for the second time in this year, which could allow attackers to remotely execute malicious code on a victim's computer. Cisco WebEx is a popular communication tool for online events, including meetings, webinars and video conferences that help users connect and collaborate with colleagues around the world. The extension has roughly 20 million active users. Discovered by Tavis Ormandy of Google Project Zero and Cris Neckar of Divergent Security, the remote code execution flaw (CVE-2017-6753) is due to a designing defect in the WebEx browser extension. To exploit the vulnerability, all an attacker need to do is trick victims into visiting a web page containing specially crafted malicious code through the browser with affected extension installed. Successful exploitation of this vulnerability could result in the attacker executing arbitrary code with th

Google has released its latest monthly security update for Android devices, including a serious bug in some Broadcom Wi-Fi chipsets that affects millions of Android devices, as well as some iPhone models. Dubbed BroadPwn , the critical remote code execution vulnerability resides in Broadcom's BCM43xx family of WiFi chipsets, which can be triggered remotely without user interaction, allows a remote attacker to execute malicious code on targeted Android devices with kernel privileges. "The most severe vulnerability in this [runtime] section could enable a remote attacker using a specially crafted file to execute arbitrary code within the context of an unprivileged process," Google describes in the July 2017 Android Security Bulletin. The BroadPwn vulnerability ( CVE-2017-3544 ) has been discovered by Exodus Intelligence researcher Nitay Artenstein, who says the flawed Wi-Fi chipset also impacts Apple iOS devices. Since Artenstein will be presenting his finding at

A critical vulnerability has been discovered in Systemd , the popular init system and service manager for Linux operating systems, that could allow remote attackers to potentially trigger a buffer overflow to execute malicious code on the targeted machines via a DNS response. The vulnerability, designated as CVE-2017-9445 , actually resides in the ' dns_packet_new ' function of 'systemd-resolved,' a DNS response handler component that provides network name resolution to local applications. According to an advisory published Tuesday, a specially crafted malicious DNS response can crash 'systemd-resolved' program remotely when the system tries to lookup for a hostname on an attacker-controlled DNS service. Eventually, large DNS response overflows the buffer, allowing an attacker to overwrite the memory which leads to remote code execution. This means the attackers can remotely run any malware on the targeted system or server via their evil DNS service

A critical vulnerability has been discovered in Microsoft-owned most popular free web messaging and voice calling service Skype that could allow hackers to remotely execute malicious code and crash systems. Skype is a free online service that allows users to communicate with peers by voice, video, and instant messaging over the Internet. The service was acquired by Microsoft Corporation in May 2011 for US$8.5 Billion due to its worldwide popularity. Security researcher Benjamin Kunz-Mejri from Germany-based security firm Vulnerability Lab discovered the previously unknown stack buffer overflow vulnerability, which is documented in CVE-2017-9948 , in Skype Web's messaging and call service during a team conference call. The vulnerability is considered a high-security risk with a 7.2 CVSS score and affects Skype versions 7.2, 7.35, and 7.36 on Windows XP, Windows 7 and Windows 8, Mejri said in a public security disclosure published on Monday. "The issue can be exploi

A 7-year-old critical remote code execution vulnerability has been discovered in Samba networking software that could allow a remote attacker to take control of an affected Linux and Unix machines. Samba is open-source software (re-implementation of SMB networking protocol) that runs on the majority of operating systems available today, including Windows, Linux, UNIX, IBM System 390, and OpenVMS. Samba allows non-Windows operating systems, like GNU/Linux or Mac OS X, to share network shared folders, files, and printers with Windows operating system. The newly discovered remote code execution vulnerability ( CVE-2017-7494 ) affects all versions newer than Samba 3.5.0 that was released on March 1, 2010. "All versions of Samba from 3.5.0 onwards are vulnerable to a remote code execution vulnerability, allowing a malicious client to upload a shared library to a writable share, and then cause the server to load and execute it," Samba wrote in an advisory published Wed

While Windows users are currently in fear of getting their systems hijacked by the WannaCry ransomware outbreak, Apple users are sitting relaxed, thinking that malware attacks are something that happens to Windows users, and not Apple. But you are mistaken – Apple products are also not immune to the hack attacks and malware infections, as an ebook can hack your Mac, iPhone, and iPad. Apple on Monday pushed out software updates for iOS, macOS, Safari, tvOS, iCloud, iTunes, and watchOS to fix a total of 67 unique security vulnerabilities, many of which allows attackers to perform remote code execution on an affected system. iOS is 10.3.2 for iPhone, iPad, and iPod Apple's mobile operating system iOS 10.3.2 for the iPhone, iPad and iPod touch addresses 41 security flaws, 23 of which resides in WebKit, including 17 remote code execution and 5 cross-site scripting (XSS) vulnerabilities. Besides this, iOS 10.3.2 also addresses a pair of flaws in iBooks for iOS (CVE-2017-24

A security researcher has publicly disclosed two critical zero-day vulnerabilities in Vanilla Forums, an open source software that powers discussion on over 500,000 websites, which could allow unauthenticated, remote attackers to fully compromise targeted websites easily. Discovered by Polish security researcher Dawid Golunski of Legal Hackers, two separate unpatched vulnerabilities, a remote code execution ( CVE-2016-10033 ) and host header injection ( CVE-2016-10073 ), affect the latest version of Vanilla Forums 2.3, leaving hundreds of thousands of websites and their visitors vulnerable to various hacking attacks. Vanilla Forums: Remote Code Execution Flaw According to Golunski, both vulnerabilities technically exist because Vanilla Forum is still using a vulnerable version of PHPMailer , one of the most popular open source PHP libraries used to send emails. Last year Golunski reported a critical remote code execution flaw ( CVE-2016-10033 ) in PHPMailer library that al

Microsoft's own antivirus software made Windows 7, 8.1, RT and 10 computers, as well as Windows Server 2016 more vulnerable. Microsoft has just released an out-of-band security update to patch the crazy bad bug discovered by a pair of Google Project Zero researchers over the weekend. Security researchers Tavis Ormandy announced on Twitter during the weekend that he and another Project Zero researcher Natalie Silvanovich discovered "the worst Windows remote code [execution vulnerability] in recent memory." Natalie Silvanovich also published a  proof-of-concept (PoC) exploit code that fits in a single tweet. The reported RCE vulnerability , according to the duo, could work against default installations with "wormable" ability – capability to replicate itself on an infected computer and then spread to other PCs automatically. According to an advisory released by Microsoft, the remotely exploitable security flaw (CVE-2017-0290) exists in Microsoft

In Brief Google has released its monthly security patches for Android this week, addressing 17 critical vulnerabilities, 6 of which affect Android Mediaserver component that could be used to execute malicious code remotely. Besides patches for Mediaserver, Google also fixed 4 critical vulnerabilities related to Qualcomm components discovered in Android handsets, including Google's Nexus 6P, Pixel XL, and Nexus 9 devices. According to the Google security bulletin for Android  published Monday, this month's security update is one of the largest security fixes the company ever compiled in a single month. Google has split Android's monthly security bulletin into security "patch levels": Partial security patch level (2017-05-01) covers patches for vulnerabilities that are common to all Android devices. Complete security patch level (2017-05-05) includes additional fixes for hardware drivers as well as kernel components that are present only in some d

Updated: Since the below-reported vulnerability is highly critical and it would take a few weeks for sysadmins to protect their enterprise network, the research team has not yet disclosed the technical details of the vulnerability. Meanwhile, I have talked with Maksim Malyutin, a member of Embedi research team who discovered the vulnerability in March, and updated my article based on the information provided by him. A critical vulnerability has been discovered in the remote management features on computers shipped with Intel processors for past seven years (and not decade), which could allow attackers to take control of the computers remotely, affecting all Intel systems, including PC, laptops, and servers, with AMT feature enabled. As reported earlier, this critical flaw (CVE-2017-5689) is not a remote code execution, rather Malyutin confirmed to The Hacker News that it's a logical vulnerability that also gives remote attackers an opportunity to exploit this bug using add

It's 2017, and opening a simple MS Word file could compromise your system. Security researchers are warning of a new in-the-wild attack that silently installs malware on fully-patched computers by exploiting a serious — and yet unpatched — zero-day vulnerability in all current versions of Microsoft Office. The Microsoft Office zero-day attack, uncovered by researchers from security firms McAfee and FireEye, starts simply with an email that attaches a malicious Word file containing a booby-trapped OLE2link object. When opened, the exploit code gets executed and makes a connection to a remote server controlled by the attacker, from where it downloads a malicious HTML application file (HTA) that's disguised as a document created in Microsoft's RTF (Rich Text Format). The HTA file then gets executed automatically with attackers gaining full code execution on the victim's machine, downloading additional payloads from "different well-known malware families"

What could be more exciting for hackers than exploiting a vulnerability in a widely used software without having to struggle too much? One such easy-to-exploit, but critical vulnerability has been discovered in ESET's antivirus software that could allow any unauthenticated attackers to remotely execute arbitrary code with root privileges on a Mac system. The critical security flaw, tracked as CVE-2016-9892, in ESET Endpoint Antivirus 6 for macOS was discovered by Google Security Team's researchers Jason Geffner and Jan Bee at the beginning of November 2016. As detailed in the full disclosure , all a hacker needs to get root-level remote code execution on a Mac computer is to intercept the ESET antivirus package's connection to its backend servers using a self-signed HTTPS certificate, put himself in as a man-in-the-middle (MITM) attacker, and exploit an XML library flaw. The actual issue was related to a service named esets_daemon, which runs as root. The service

It's not necessary to break into your computer or smartphone to spy on you. Today all devices in our home are becoming more connected to networks than ever to make our lives easy. But what's worrisome is that these connected devices can be turned against us, anytime, due to lack of stringent security measures and insecure encryption mechanisms implemented in these Internet of Things (IoTs) devices. The most recent victim of this issue is the Samsung's range of SmartCam home security cameras. Yes, it's hell easy to hijack the popular Samsung SmartCam security cameras, as they contain a critical remote code execution (RCE) vulnerability that could let hackers gain root access and take full control of these devices. SmartCam is one of the Samsung's SmartThings range of devices, which allows its users to connect, manage, monitor and control "smart" devices in their home using their smartphones or tablets. Back in 2014, the hacking group Exploiteer

In Brief Microsoft has issued its first Patch Tuesday for 2017 , and it's one of the smallest ever monthly patch releases for the company, with only four security updates to address vulnerabilities in its Windows operating system as well as Adobe Flash Player. Meanwhile, Adobe has also released patches for more than three dozen security vulnerabilities in its Flash Player and Acrobat/Reader for Windows, MacOS, and Linux desktops. According to the Microsoft Advisory, only one security bulletin is rated critical, while other three are important. The bulletins address security vulnerabilities in Microsoft's Windows, Windows Server, Office, Edge and Flash Player. The only security bulletin rated as critical is the one dedicated to Adobe Flash Player, for which Microsoft distributed security patches through Windows Update. Other security bulletins that addresses flaws in Microsoft products are as follows: Bulletin 1 — MS17-001 This security update resolves just one v

A security researcher recently reported a critical vulnerability in one of the most popular open source PHP libraries used to send emails that allowed a remote attacker to execute arbitrary code in the context of the web server and compromise a web application. Disclosed by Polish security researcher Dawid Golunski of Legal Hackers, the issue ( CVE-2016-10033 ) in PHPMailer used by more than 9 Million users worldwide was thought to be fixed with the release of version 5.2.18. However, Golunski managed to bypass the patched version of PHPMailer that was given a new CVE ( CVE-2016-10045 ), which once again put millions of websites and popular open source web apps, including WordPress, Drupal, 1CRM, SugarCRM, Yii, and Joomla, at risk of remote code execution attack. PHPMailer eventually fixed the issue with an update, version 5.2.20 . All versions of PHPMailer before this critical release are affected, so web administrators and developers are strongly recommended to update to t

A critical vulnerability has been discovered in PHPMailer , which is one of the most popular open source PHP libraries to send emails used by more than 9 Million users worldwide. Millions of PHP websites and popular open source web applications, including WordPress, Drupal, 1CRM, SugarCRM, Yii, and Joomla comes with PHPMailer library for sending emails using a variety of methods, including SMTP to their users. Discovered by Polish security researcher Dawid Golunski of Legal Hackers , the critical vulnerability ( CVE-2016-10033 ) allows an attacker to remotely execute arbitrary code in the context of the web server and compromise the target web application. "To exploit the vulnerability an attacker could target common website components such as contact/feedback forms, registration forms, password email resets and others that send out emails with the help of a vulnerable version of the PHPMailer class," Golunski writes in the advisory published today. Golunski respo