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I am sure that many of you have by now heard of a recently disclosed critical Windows server vulnerability—called  Zerologon —that could let hackers completely take over enterprise networks. For those unaware, in brief, all supported versions of the Windows Server operating systems are vulnerable to a critical privilege escalation bug that resides in the  Netlogon Remote Control  Protocol for Domain Controllers. In other words, the underlying vulnerability ( CVE-2020-1472 ) could be exploited by an attacker to compromise Active Directory services, and eventually, the Windows domain without requiring any authentication. What's worse is that a proof-of-concept exploit for this flaw was released to the public last week, and immediately after, attackers started exploiting the weakness against unpatched systems in the wild. As described in our  coverage  based on a technical analysis published by Cynet security researchers, the underlying issue is Microsoft's im...

Cybersecurity researchers uncovered fresh evidence of an ongoing cyberespionage campaign against Indian defense units and armed forces personnel at least since 2019 with an aim to steal sensitive information. Dubbed " Operation SideCopy " by Indian cybersecurity firm  Quick Heal , the attacks have been attributed to an advanced persistent threat (APT) group that has successfully managed to stay under the radar by "copying" the tactics of other threat actors such as the  SideWinder . Exploiting Microsoft Equation Editor Flaw The campaign's starting point is an email with an embedded malicious attachment — either in the form of a ZIP file containing an LNK file or a Microsoft Word document — that triggers an infection chain via a series of steps to download the final-stage payload. Aside from identifying three different infection chains, what's notable is the fact that one of them exploited template injection and Microsoft Equation Editor flaw ( CVE-2017...

What is the difference between a penetration test and a red team exercise? The common understanding is that a red team exercise is a pen-test on steroids, but what does that mean? While both programs are performed by ethical hackers, whether they are in-house residents or contracted externally, the difference runs deeper. In a nutshell, a pen-test is performed to discover exploitable vulnerabilities and misconfigurations that would potentially serve unethical hackers. They primarily test the effectiveness of security controls and employee security awareness. The purpose of a red team exercise, in addition to discovering exploitable vulnerabilities, is to exercise the operational effectiveness of the security team, the blue team. A red team exercise challenges the blue team's capabilities and supporting technology to detect, respond, and recover from a breach. The objective is to improve their incident management and response procedures. The challenge with pen-testing and red te...

Amnesty International today exposed details of a new surveillance campaign that targeted Egyptian civil society organizations with previously undisclosed versions of FinSpy spyware designed to target Linux and macOS systems. Developed by a German company , FinSpy is extremely powerful spying software that is being sold as a legal law enforcement tool to governments around the world but has also been found in use by oppressive and dubious regimes to spy on activists. FinSpy, also known as FinFisher, can target both desktop and mobile operating systems, including Android, iOS, Windows, macOS, and Linux, to gain spying capabilities, including secretly turning on their webcams and microphones, recording everything the victim types on the keyboard, intercepting calls, and exfiltration of data. According to the human rights organization Amnesty International , the newly discovered campaign is not linked to 'NilePhish,' a hacking group known for attacking Egyptian NGOs in a ser...

Microsoft's long-lived operating system Windows XP—that still powers over 1% of all laptops and desktop computers worldwide—has had its source code leaked online, allegedly, along with Windows Server 2003. Yes, you heard that right. The source code for Microsoft's 19-year-old operating system was published as a torrent file on notorious bulletin board website 4chan, and it's for the very first time when source code for Microsoft's operating system has been leaked to the public. Several reports suggest that the collection of torrent files, which weigh 43GB in size, also said to include the source code for Windows Server 2003 and several Microsoft's older operating systems, including: Windows 2000 Windows CE 3  Windows CE 4  Windows CE 5  Windows Embedded 7 Windows Embedded CE Windows NT 3.5 Windows NT 4 MS-DOS 3.30  MS-DOS 6.0 The torrent download also includes the alleged source code for various Windows 10 components that  appeared in 2017 ...

As the pandemic continues to accelerate the shift towards working from home, a  slew of digital threats  have capitalized on the health concern to exploit weaknesses in the remote work infrastructure and carry out malicious attacks. Now according to network security platform provider SAM Seamless Network , over 200,000 businesses that have deployed the Fortigate VPN solution—with default configuration—to enable employees to connect remotely are vulnerable to man-in-the-middle (MitM) attacks, allowing attackers to present a valid SSL certificate and fraudulently take over a connection. "We quickly found that under default configuration the SSL VPN is not as protected as it should be, and is vulnerable to MITM attacks quite easily," SAM IoT Security Lab's Niv Hertz and Lior Tashimov said. "The Fortigate SSL-VPN client only verifies that the CA was issued by Fortigate (or another trusted CA), therefore an attacker can easily present a certificate issued to a differ...

Ever wonder how hackers can hack your smartphone remotely? In a report shared with The Hacker News today, Check Point researchers disclosed details about a  critical vulnerability  in Instagram's Android app that could have allowed remote attackers to take control over a targeted device just by sending victims a specially crafted image. What's more worrisome is that the flaw not only lets attackers perform actions on behalf of the user within the Instagram app—including spying on victim's private messages and even deleting or posting photos from their accounts—but also execute arbitrary code on the device. According to an  advisory  published by Facebook, the heap overflow security issue (tracked as CVE-2020-1895 , CVSS score: 7.8) impacts all versions of the Instagram app prior to 128.0.0.26.128, which was released on February 10 earlier this year. "This [flaw] turns the device into a tool for spying on targeted users without their knowledge, as well as enablin...

If you're administrating Windows Server, make sure it's up to date with all recent patches issued by Microsoft, especially the one that fixes a recently patched critical vulnerability that could allow unauthenticated attackers to compromise the domain controller. Dubbed 'Zerologon' (CVE-2020-1472) and discovered by Tom Tervoort of  Secura , the privilege escalation vulnerability exists due to the insecure usage of AES-CFB8 encryption for Netlogon sessions, allowing remote attackers to establish a connection to the targeted domain controller over Netlogon Remote Protocol (MS-NRPC). "The attack utilizes flaws in an authentication protocol that validates the authenticity and identity of a domain-joined computer to the Domain Controller. Due to the incorrect use of an AES mode of operation, it is possible to spoof the identity of any computer account (including that of the DC itself) and set an empty password for that account in the domain," researchers at cyber...

As ransomware attacks  against critical infrastructure continue to spike in recent months, cybersecurity researchers have uncovered a new entrant that has been actively trying to conduct multistage attacks on large corporate networks of medical labs, banks, manufacturers, and software developers in Russia. The ransomware gang, codenamed "OldGremlin" and believed to be a Russian-speaking threat actor, has been linked to a series of campaigns at least since March, including a successful attack against a clinical diagnostics laboratory that occurred last month on August 11. "The group has targeted only Russian companies so far, which was typical for many Russian-speaking adversaries, such as  Silence  and  Cobalt , at the beginning of their criminal path," Singaporean cybersecurity firm Group-IB said in a report published today and shared with The Hacker News. "Using Russia as a testing ground, these groups then switched to other geographies to distance thems...

A back-end server associated with Microsoft Bing exposed sensitive data of the search engine's mobile application users, including search queries, device details, and GPS coordinates, among others. The logging database, however, doesn't include any personal details such as names or addresses. The data leak, discovered by Ata Hakcil of  WizCase  on September 12, is a massive 6.5TB cache of log files that was left for anyone to access without any password, potentially allowing cybercriminals to leverage the information for carrying out extortion and phishing scams. According to WizCase, the Elastic server is believed to have been password protected until September 10, after which the authentication seems to have been inadvertently removed. After the findings were privately disclosed to Microsoft Security Response Center, the Windows maker addressed the misconfiguration on September 16. Misconfigured servers have been a constant  source of data leaks  in recent y...

A UK man who threatened to publicly release stolen confidential information unless the victims agreed to fulfill his digital extortion demands has finally pleaded guilty on Monday at U.S. federal district court in St. Louis, Missouri. Nathan Francis Wyatt , 39, who is a key member of the infamous international hacking group 'The Dark Overlord,' has been sentenced to five years in prison and ordered to pay $1,467,048 in restitution to his victims. Wyatt, who was extradited to the United States late last year after being held for over two years in the United Kingdom, has pleaded guilty to conspiring to commit aggravated identity theft and computer fraud. U.K. police first arrested Wyatt in September 2016 during an investigation into the hacking of an iCloud account belonging to Pippa Middleton, the younger sister of the British royal family member Duchess of Cambridge, and stealing 3,000 images of her. Though he was released in that case without charge due to lack of ...

German authorities last week  disclosed  that a ransomware attack on the University Hospital of Düsseldorf (UKD) caused a failure of IT systems, resulting in the death of a woman who had to be sent to another hospital that was 20 miles away. The incident marks the first recorded casualty as a consequence of cyberattacks on critical healthcare facilities, which has ramped up in recent months. The attack, which exploited a Citrix ADC  CVE-2019-19781  vulnerability to cripple the hospital systems on September 10, is said to have been "misdirected" in that it was originally intended for Heinrich Heine University, according to an extortion note left by the perpetrators. After law enforcement contacted the threat actors and informed them that they had encrypted a hospital, the operators behind the attack withdrew the ransom demand and provided the decryption key. The case is currently being treated as a homicide, BBC News  reported  over the weekend. Unpatc...

Dear Android users, if you use the Firefox web browser on your smartphones, make sure it has been updated to version 80 or the latest available version on the Google Play Store. ESET security researcher Lukas Stefanko yesterday tweeted an alert demonstrating the exploitation of a recently disclosed high-risk remote command execution vulnerability affecting the Firefox app for Android. Discovered originally by Australian security researcher Chris Moberly , the vulnerability resides in the SSDP engine of the browser that can be exploited by an attacker to target Android smartphones connected to the same Wi-Fi network as the attacker, with Firefox app installed. SSDP, stands for Simple Service Discovery Protocol, is a UDP based protocol that is a part of UPnP for finding other devices on a network. In Android, Firefox periodically sends out SSDP discovery messages to other devices connected to the same network, looking for second-screen devices to cast. Any device on the local netwo...