remote code execution | Breaking Cybersecurity News | The Hacker News

Security researchers have discovered a potentially dangerous vulnerability in the firmware of various Hewlett Packard (HP) enterprise printer models that could be abused by attackers to run arbitrary code on affected printer models remotely. The vulnerability (CVE-2017-2750), rated as high in severity with 8.1 CVSS scale, is due to insufficiently validating parts of Dynamic Link Libraries (DLL) that allows for the potential execution of arbitrary code remotely on affected 54 printer models. The security flaw affects 54 printer models ranging from HP LaserJet Enterprise, LaserJet Managed, PageWide Enterprise and OfficeJet Enterprise printers. This remote code execution (RCE) vulnerability was discovered by researchers at FoxGlove Security when they were analyzing the security of HP's MFP-586 printer (currently sold for $2,000) and HP LaserJet Enterprise M553 printers (sold for $500). According to a technical write-up posted by FoxGlove on Monday, researchers were able to

As part of its "October Patch Tuesday," Microsoft has today released a large batch of security updates to patch a total of 62 vulnerabilities in its products, including a severe MS office zero-day flaw that has been exploited in the wild. Security updates also include patches for Microsoft Windows operating systems, Internet Explorer, Microsoft Edge, Skype, Microsoft Lync and Microsoft SharePoint Server. Besides the MS Office vulnerability, the company has also addressed two other publicly disclosed (but not yet targeted in the wild) vulnerabilities that affect the SharePoint Server and the Windows Subsystem for Linux. October patch Tuesday also fixes a critical Windows DNS vulnerability that could be exploited by a malicious DNS server to execute arbitrary code on the targeted system. Below you can find a brief technical explanation of all above mentioned critical and important vulnerabilities. Microsoft Office Memory Corruption Vulnerability (CVE-2017-11826) T

It comes as no surprise that today's cyber threats are orders of magnitude more complex than those of the past. And the ever-evolving tactics that attackers use demand the adoption of better, more holistic and consolidated ways to meet this non-stop challenge. Security teams constantly look for ways to reduce risk while improving security posture, but many approaches offer piecemeal solutions – zeroing in on one particular element of the evolving threat landscape challenge – missing the forest for the trees.  In the last few years, Exposure Management has become known as a comprehensive way of reigning in the chaos, giving organizations a true fighting chance to reduce risk and improve posture. In this article I'll cover what Exposure Management is, how it stacks up against some alternative approaches and why building an Exposure Management program should be on  your 2024 to-do list. What is Exposure Management?  Exposure Management is the systematic identification, evaluation,

Security researchers have discovered not one or two, but a total of seven security vulnerabilities in the popular open source Dnsmasq network services software, three of which could allow remote code execution on a vulnerable system and hijack it. Dnsmasq is a widely used lightweight network application tool designed to provide DNS (Domain Name System) forwarder, DHCP (Dynamic Host Configuration Protocol) server, router ads and network boot services for small networks. Dnsmasq comes pre-installed on various devices and operating systems, including Linux distributions such as Ubuntu and Debian, home routers, smartphones and Internet of Things (IoT) devices. A shodan scan for "Dnsmasq" reveals around 1.1 million instances worldwide. Recently, Google's security team reviewed Dnsmasq and discovered seven security issues, including DNS-related remote code execution, information disclosure, and denial-of-service (DoS) issues that can be triggered via DNS or DHCP. &q

It seems like Tor Browser zero-day exploits are in high demand right now—so much so that someone is ready to pay ONE MILLION dollars. Zerodium—a company that specialises in acquiring and reselling zero-day exploits—just announced that it will pay up to USD 1,000,000 for working zero-day exploits for the popular Tor Browser on Tails Linux and Windows operating system. Tor browser users should take this news an early warning, especially who use Tails OS to protect their privacy. Zero-day exploit acquisition platform has also published some rules and payout details on its website, announcing that the payout for Tor exploits with no JavaScript has been kept double than those with JavaScript enabled. The company has also clearly mentioned that the exploit must leverage remote code execution vulnerability, the initial attack vector should be a web page and it should work against the latest version of Tor Browser. Moreover, the zero-day Tor exploit must work without requiring an

Adobe may kill Flash Player by the end of 2020, but until then, the company would not stop providing security updates to the buggy software . As part of its monthly security updates, Adobe has released patches for eight security vulnerabilities in its three products, including two vulnerabilities in Flash Player, four in ColdFusion, and two in RoboHelp—five of these are rated as critical. Both of the Adobe Flash Player vulnerabilities can be exploited for remote code execution on the affected device, and both have been classified as critical. None of the patched vulnerabilities has reportedly been exploited in the wild, according to the company. The critical Flash Player flaws are tracked as CVE-2017-11281 and CVE-2017-11282 and were discovered by Mateusz Jurczyk and Natalie Silvanovich of Google Project Zero, respectively. Both the security vulnerabilities are memory corruption issues that could lead to remote code execution and affect all major operating system, includi

If you are using a Bluetooth enabled device, be it a smartphone, laptop, smart TV or any other IoT device, you are at risk of malware attacks that can carry out remotely to take over your device even without requiring any interaction from your side. Security researchers have just discovered total 8 zero-day vulnerabilities in Bluetooth protocol that impact more than 5.3 Billion devices—from Android, iOS, Windows and Linux to the Internet of things (IoT) devices—using the short-range wireless communication technology. Using these vulnerabilities, security researchers at IoT security firm Armis have devised an attack, dubbed BlueBorne , which could allow attackers to completely take over Bluetooth-enabled devices, spread malware, or even establish a "man-in-the-middle" connection to gain access to devices' critical data and networks without requiring any victim interaction. All an attacker need is for the victim's device to have Bluetooth turned on and obvious

Security researchers have discovered a critical remote code execution vulnerability in the popular Apache Struts web application framework, allowing a remote attacker to run malicious code on the affected servers. Apache Struts is a free, open-source, Model-View-Controller (MVC) framework for developing web applications in the Java programming language, which supports REST, AJAX, and JSON. The vulnerability (CVE-2017-9805) is a programming blunder that resides in the way Struts processes data from an untrusted source. Specifically, Struts REST plugin fails to handle XML payloads while deserializing them properly. All versions of Apache Struts since 2008 (Struts 2.1.2 - Struts 2.3.33, Struts 2.5 - Struts 2.5.12) are affected, leaving all web applications using the framework's REST plugin vulnerable to remote attackers. According to one of the security researchers at LGTM, who discovered this flaw, the Struts framework is being used by "an incredibly large number and va

Are you using Foxit PDF Reader? If yes, then you need to watch your back. Security researchers have discovered two critical zero-day security vulnerabilities in Foxit Reader software that could allow attackers to execute arbitrary code on a targeted computer, if not configured to open files in the Safe Reading Mode. The first vulnerability (CVE-2017-10951) is a command injection bug discovered by researcher Ariele Caltabiano working with Trend Micro's Zero Day Initiative (ZDI), while the second bug (CVE-2017-10952) is a file write issue found by Offensive Security researcher Steven Seeley. An attacker can exploit these bugs by sending a specially crafted PDF file to a Foxit user and enticing them to open it. Foxit refused to patch both the vulnerabilities because they would not work with the "safe reading mode" feature that fortunately comes enabled by default in Foxit Reader. "Foxit Reader & PhantomPDF has a Safe Reading Mode which is enabled by d

A few months back we reported how opening a simple MS Word file could compromise your computer using a critical vulnerability in Microsoft Office . The Microsoft Office remote code execution vulnerability (CVE-2017-0199) resided in the Windows Object Linking and Embedding (OLE) interface for which a patch was issued in April this year, but threat actors are still abusing the flaw through the different mediums. Security researchers have spotted a new malware campaign that is leveraging the same exploit, but for the first time, hidden behind a specially crafted PowerPoint (PPSX) Presentation file. According to the researchers at Trend Micro, who spotted the malware campaign, the targeted attack starts with a convincing spear-phishing email attachment, purportedly from a cable manufacturing provider and mainly targets companies involved in the electronics manufacturing industry. Researchers believe this attack involves the use of a sender address disguised as a legitimate ema

After disclosing CIA's strategies to hijack and manipulate webcams and microphones to corrupt or delete recordings, WikiLeaks has now published another Vault 7 leak , revealing CIA's ability to spy on video streams remotely in real-time. Dubbed ' CouchPotato ,' document leaked from the CIA details how the CIA agents use a remote tool to stealthy collect RTSP/H.264 video streams. Real Time Streaming Protocol, or RTSP, is a network control protocol designed for use in entertainment and communication systems for controlling streaming media servers. CouchPotato gives CIA hackers ability to "collect either the stream as a video file (AVI) or capture still images (JPG) of frames from the stream that are of significant change from a previously captured frame," a leaked CIA manual reads. The tool utilises FFmpeg for video and image encoding and decoding and Real Time Streaming Protocol connectivity. The CouchPotato tool works stealthily without leaving

Here we go again… As part of its August Patch Tuesday, Microsoft has today released a large batch of 48 security updates for all supported versions Windows systems and other products. The latest security update addresses a range of vulnerabilities including 25 critical, 21 important and 2 moderate in severity. These vulnerabilities impact various versions of Microsoft's Windows operating systems, Internet Explorer, Microsoft Edge, Microsoft SharePoint, the Windows Subsystem for Linux, Adobe Flash Player, Windows Hyper-V and Microsoft SQL Server. CVE-2017-8620: Windows Search Remote Code Execution Vulnerability The most interesting and critical vulnerability of this month is Windows Search Remote Code Execution Vulnerability (CVE-2017-8620), affects all versions of Windows 7 and Windows 10, which could be used as a wormable attack like the one used in WannaCry ransomware , as it utilises the SMBv1 connection. An attacker could remotely exploit the vulnerability thro

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

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