Showing only posts tagged authentication. Show all posts.

SSH protects the world’s most sensitive networks. It just got a lot weaker

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Enlarge / Terrapin is coming for your data. (credit: Aurich Lawson | Getty Images) Sometime around the start of 1995, an unknown person planted a password sniffer on the network backbone of Finland’s Helsinki University of Technology (now known as Aalto University). Once in place, this piece of dedicated hardware …

New Bluetooth Attack

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New attack breaks forward secrecy in Bluetooth. Three news articles : BLUFFS is a series of exploits targeting Bluetooth, aiming to break Bluetooth sessions’ forward and future secrecy, compromising the confidentiality of past and future communications between devices. This is achieved by exploiting four flaws in the session key derivation …

Breaking Laptop Fingerprint Sensors

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They’re not that good : Security researchers Jesse D’Aguanno and Timo Teräs write that, with varying degrees of reverse-engineering and using some external hardware, they were able to fool the Goodix fingerprint sensor in a Dell Inspiron 15, the Synaptic sensor in a Lenovo ThinkPad T14, and the …

How to implement cryptographic modules to secure private keys used with IAM Roles Anywhere

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AWS Identity and Access Management (IAM) Roles Anywhere enables workloads that run outside of Amazon Web Services (AWS), such as servers, containers, and applications, to use X.509 digital certificates to obtain temporary AWS credentials and access AWS resources, the same way that you use IAM roles for workloads …

Microsoft Signing Key Stolen by Chinese

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A bunch of networks, including US Government networks, have been hacked by the Chinese. The hackers used forged authentication tokens to access user email, using a stolen Microsoft Azure account consumer signing key. Congress wants answers. The phrase “ negligent security practices ” is being tossed about—and with good reason …

Brute-Forcing a Fingerprint Reader

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It’s neither hard nor expensive : Unlike password authentication, which requires a direct match between what is inputted and what’s stored in a database, fingerprint authentication determines a match using a reference threshold. As a result, a successful fingerprint brute-force attack requires only that an inputted image provides …

The Security Vulnerabilities of Message Interoperability

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Jenny Blessing and Ross Anderson have evaluated the security of systems designed to allow the various Internet messaging platforms to interoperate with each other: The Digital Markets Act ruled that users on different platforms should be able to exchange messages with each other. This opens up a real Pandora …

Reduce risk by implementing HttpOnly cookie authentication in Amazon API Gateway

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Some web applications need to protect their authentication tokens or session IDs from cross-site scripting (XSS). It’s an Open Web Application Security Project (OWASP) best practice for session management to store secrets in the browsers’ cookie store with the HttpOnly attribute enabled. When cookies have the HttpOnly attribute …

Security Analysis of Threema

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A group of Swiss researchers have published an impressive security analysis of Threema. We provide an extensive cryptographic analysis of Threema, a Swiss-based encrypted messaging application with more than 10 million users and 7000 corporate customers. We present seven different attacks against the protocol in three different threat models …

How to encrypt sensitive caller voice input in Amazon Lex

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In the telecommunications industry, sensitive authentication and user data are typically received through mobile voice and keypads, and companies are responsible for protecting the data obtained through these channels. The increasing use of voice-driven interactive voice response (IVR) has resulted in a need to provide solutions that can protect …

The Decoupling Principle

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This is a really interesting paper that discusses what the authors call the Decoupling Principle: The idea is simple, yet previously not clearly articulated: to ensure privacy, information should be divided architecturally and institutionally such that each entity has only the information they need to perform their relevant function …

Failures in Twitter’s Two-Factor Authentication System

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Twitter is having intermittent problems with its two-factor authentication system: Not all users are having problems receiving SMS authentication codes, and those who rely on an authenticator app or physical authentication token to secure their Twitter account may not have reason to test the mechanism. But users have been …

Defeating Phishing-Resistant Multifactor Authentication

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CISA is now pushing phishing-resistant multifactor authentication. Roger Grimes has an excellent post reminding everyone that “phishing-resistant” is not “phishing proof,” and that everyone needs to stop pretending otherwise. His list of different attacks is particularly useful. [...]

Man-in-the-Middle Phishing Attack

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Here’s a phishing campaign that uses a man-in-the-middle attack to defeat multi-factor authentication: Microsoft observed a campaign that inserted an attacker-controlled proxy site between the account users and the work server they attempted to log into. When the user entered a password into the proxy site, the proxy …

Expanded eligibility for the free MFA security key program

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Since the broad launch of our multi-factor authentication (MFA) security key program, customers have been enthusiastic about the program and how they will use it to improve their organizations’ security posture. Given the level of interest, we’re expanding eligibility for the program to allow more US-based AWS account …

Extend AWS IAM roles to workloads outside of AWS with IAM Roles Anywhere

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AWS Identity and Access Management (IAM) has now made it easier for you to use IAM roles for your workloads that are running outside of AWS, with the release of IAM Roles Anywhere. This feature extends the capabilities of IAM roles to workloads outside of AWS. You can use …

Join me in Boston this July for AWS re:Inforce 2022

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I’d like to personally invite you to attend the Amazon Web Services (AWS) security conference, AWS re:Inforce 2022, in Boston, MA on July 26–27. This event offers interactive educational content to address your security, compliance, privacy, and identity management needs. Join security experts, customers, leaders, and …

Build a strong identity foundation that uses your existing on-premises Active Directory

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This blog post outlines how to use your existing Microsoft Active Directory (AD) to reliably authenticate access to your Amazon Web Services (AWS) accounts, infrastructure running on AWS, and third-party applications. The architecture we describe is designed to be highly available and extends access to your existing AD to …

Problems with Multifactor Authentication

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Roger Grimes on why multifactor authentication isn’t a panacea : The first time I heard of this issue was from a Midwest CEO. His organization had been hit by ransomware to the tune of $10M. Operationally, they were still recovering nearly a year later. And, embarrassingly, it was his …

Using “Master Faces” to Bypass Face-Recognition Authenticating Systems

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Fascinating research: “ Generating Master Faces for Dictionary Attacks with a Network-Assisted Latent Space Evolution.” Abstract: A master face is a face image that passes face-based identity-authentication for a large portion of the population. These faces can be used to impersonate, with a high probability of success, any user, without …

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