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Microsoft Exchange Bug Exposes ~100,000 Windows Domain Credentials

Microsoft Exchange Bug Exposes ~100,000 Windows Domain Credentials

September 23, 2021Ravie Lakshmanan
An unpatched design flaw in the implementation of Microsoft Exchange's Autodiscover protocol has resulted in the leak of approximately 100,000 login names and passwords for Windows domains worldwide. "This is a severe security issue, since if an attacker can control such domains or has the ability to 'sniff' traffic in the same network, they can capture domain credentials in plain text (HTTP basic authentication) that are being transferred over the wire," Guardicore's Amit Serper  said  in a technical report. "Moreover, if the attacker has DNS-poisoning capabilities on a large scale (such as a nation-state attacker), they could systematically syphon out leaky passwords through a large-scale DNS poisoning campaign based on these Autodiscover TLDs [top-level domains]." The Exchange  Autodiscover  service enables users to configure applications such as Microsoft Outlook with minimal user input, allowing just a combination of email addresses and pas
A New Bug in Microsoft Windows Could Let Hackers Easily Install a Rootkit

A New Bug in Microsoft Windows Could Let Hackers Easily Install a Rootkit

September 23, 2021Ravie Lakshmanan
Security researchers have disclosed an unpatched weakness in Microsoft Windows Platform Binary Table (WPBT) affecting all Windows-based devices since Windows 8 that could be potentially exploited to install a rootkit and compromise the integrity of devices. "These flaws make every Windows system vulnerable to easily-crafted attacks that install fraudulent vendor-specific tables," researchers from Eclypsium  said  in a report published on Monday. "These tables can be exploited by attackers with direct physical access, with remote access, or through manufacturer supply chains. More importantly, these motherboard-level flaws can obviate initiatives like  Secured-core  because of the ubiquitous usage of  ACPI  [Advanced Configuration and Power Interface] and WPBT." WPBT, introduced with Windows 8 in 2012, is a  feature  that enables "boot firmware to provide Windows with a platform binary that the operating system can execute."  In other words, it allows
Why You Should Consider QEMU Live Patching

Why You Should Consider QEMU Live Patching

September 23, 2021The Hacker News
Sysadmins know what the risks are of running unpatched services. Given the choice, and unlimited resources, most hardworking administrators will ensure that all systems and services are patched consistently. But things are rarely that simple. Technical resources are limited, and patching can often be more complicated than it appears at first glance. Worse, some services are so hidden in the background, that they just don't make it onto the list of things to be patched. QEMU is one of those services that tend to create difficulties with patching. It works away in the background and is easy to take for granted. Plus, patching QEMU involves significant technical and practical challenges – while requiring enormous resources. In this article, we'll address some of the difficulties around patching QEMU, and point to a solution that takes the toughest bits out of QEMU patching. Ignoring QEMU patching is a big risk You'll probably know about it if you're using QEMU – shor
New Android Malware Targeting US, Canadian Users with COVID-19 Lures

New Android Malware Targeting US, Canadian Users with COVID-19 Lures

September 23, 2021Ravie Lakshmanan
An "insidious" new SMS smishing malware has been found targeting Android mobile users in the U.S. and Canada as part of an ongoing campaign that uses SMS text message lures related to COVID-19 regulations and vaccine information in an attempt to steal personal and financial data. Proofpoint's messaging security subsidiary Cloudmark coined the emerging malware "TangleBot." "The malware has been given the moniker TangleBot because of its many levels of obfuscation and control over a myriad of entangled device functions, including contacts, SMS and phone capabilities, call logs, internet access, and camera and microphone," the researchers  said . Besides capabilities to obtain sensitive information, the malware is engineered to control device interaction with banking or financial apps using overlay screens and plunder account credentials from financial activities initiated on the phones. The attacks themselves originate from SMS messages that claim
Colombian Real Estate Agency Leak Exposes Records of Over 100,000 Buyers

Colombian Real Estate Agency Leak Exposes Records of Over 100,000 Buyers

September 23, 2021Ravie Lakshmanan
More than one terabyte of data containing 5.5 million files has been left exposed, leaking personal information of over 100,000 customers of a Colombian real estate firm, according to cybersecurity company WizCase. The breach was discovered by Ata Hakçıl and his team in a database owned by Coninsa Ramon H, a company that specializes in architecture, engineering, construction, and real estate services. "There was no need for a password or login credentials to see this information, and the data was not encrypted," the researchers  said  in an exclusive report shared with The Hacker News. The data exposure is the result of a misconfigured Amazon Web Services (AWS) Simple Storage Service (S3) bucket, causing sensitive information such as clients' names, photos, and addresses to be disclosed. The details stored in the bucket range from invoices and income documents to quotes and account statements dating between 2014 and 2021. The complete list of information contained in
Microsoft Warns of a Wide-Scale Phishing-as-a-Service Operation

Microsoft Warns of a Wide-Scale Phishing-as-a-Service Operation

September 22, 2021Ravie Lakshmanan
Microsoft has opened the lid on a large-scale phishing-as-a-service (PHaaS) operation that's involved in selling phishing kits and email templates as well as providing hosting and automated services at a low cost, thus enabling cyber actors to purchase phishing campaigns and deploy them with minimal efforts. "With over 100 available phishing templates that mimic known brands and services, the BulletProofLink operation is responsible for many of the phishing campaigns that impact enterprises today," Microsoft 365 Defender Threat Intelligence Team  said  in a Tuesday report. "BulletProofLink (also referred to as BulletProftLink or Anthrax by its operators in various websites, ads, and other promotional materials) is used by multiple attacker groups in either one-off or monthly subscription-based business models, creating a steady revenue stream for its operators." The tech giant said it uncovered the operation during its investigation of a credential phishing
New Nagios Software Bugs Could Let Hackers Take Over IT Infrastructures

New Nagios Software Bugs Could Let Hackers Take Over IT Infrastructures

September 22, 2021Ravie Lakshmanan
As many as 11 security vulnerabilities have been disclosed in Nagios network management systems, some of which could be chained to achieve pre-authenticated remote code execution with the highest privileges, as well as lead to credential theft and phishing attacks.  Industrial cybersecurity firm Claroty, which discovered the flaws, said flaws in tools such as Nagios make them an attractive target owing to their "oversight of core servers, devices, and other critical components in the enterprise network." The issues have since been fixed in updates released in August with Nagios XI 5.8.5 or above, Nagios XI Switch Wizard 2.5.7 or above, Nagios XI Docker Wizard 1.13 or above, and Nagios XI WatchGuard 1.4.8 or above. " SolarWinds  and  Kaseya  were likely targeted not only because of their large and influential customer bases, but also because of their respective technologies' access to enterprise networks, whether it was managing IT, operational technology (OT), or
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