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There is a Ransomware Armageddon Coming for Us All

By The Hacker News
Generative AI will enable anyone to launch sophisticated phishing attacks that only Next-generation MFA devices can stop The least surprising headline from 2023 is that ransomware again set new records for a number of incidents and the damage inflicted. We saw new headlines every week, which included a who’s-who of big-name organizations. If MGM, Johnson Controls, Chlorox, Hanes Brands, Caesars

Still Using Passwords? Get Started with Phishing-Resistant, Passwordless Authentication Now!

By Jackie Castelli

Going beyond the hype, passwordless authentication is now a reality. Cisco Duo’s passwordless authentication is now generally available across all Duo Editions.

“Cisco Duo simplifies the passwordless journey for organizations that want to implement phishing-resistant authentication and adopt a zero trust security strategy.”
—Jack Poller, Senior Analyst, ESG

We received tremendous participation and feedback during our public preview, and we are now excited to bring this capability to our customers and prospects.

“Over the last few years, we have increased our password complexities and required 2FA wherever possible.  With this approach, employees had more password lock outs, password fatigue, and forgetting their longer passwords due to password rotations.  With Duo Passwordless, we are excited to introduce this feature to our employees to keep our password complexities in place and leverage different Biometric options whether that is using their mobile device, Windows Hello, or a provided FIDO security key. 

The Duo Push for passwordless authentication feature is simple and easy and introduces a more pleasant experience overall.  Using Duo’s device insight and application policies, we are able to leverage and verify the security of the mobile devices before the device is allowed to be used.  To top it off, Duo is connected to our SIEM and our InfoSec team is able to review detailed logs and setup alerts to be able to keep everything secure.”
—Vice President of IT, Banking and Financial Services Customer

As with any new technology, getting to a completely passwordless state will be a journey for many organizations. We see customers typically starting their passwordless journey with web-based applications that support modern authentication. To that effect, Duo’s passwordless authentication is enabled through Duo Single Sign-On (SSO) for federated applications. Customers can choose to integrate their existing SAML Identity provider such as Microsoft (ADFS, Azure), Okta or Ping Identity; or choose to use Duo SSO (Available across all Duo editions).

“Password management is a challenging proposition for many enterprises, especially in light of BYOD and ever increasing sophistication of phishing schemes. Cisco aims to simplify the process with its Duo passwordless authentication that offers out-of-box integrations with popular single sign-on solutions.”
—Will Townsend, Vice President & Principal Analyst, Networking & Security, Moor Insights & Strategy

Duo’s Passwordless Architecture

Duo Passwordless Architecture

Duo offers a flexible choice of passwordless authentication options to meet the needs of businesses and their use cases. This includes:

  1. FIDO2-compliant, phishing-resistant authentication using
    • Platform authenticators – TouchID, FaceID, Windows Hello, Android biometrics
    • Roaming authenticators – security keys (e.g. Yubico, Feitian)
  2. Strong authentication using Duo Mobile authenticator application

No matter which authentication option you choose, it is secure and inherently multi-factor authentication. We are eliminating the need for the weak knowledge factor (something you know – passwords) which are shared during authentication and can be easily compromised. Instead, we are relying on stronger factors, which are the inherence factor (something you are – biometrics) and possession factor (something you have – a registered device). A user completes this authentication in a single gesture without having to remember a complex string of characters. This significantly improves the user experience and mitigates the risk of stolen credentials and man-in-the-middle (MiTM) attacks.

Phishing resistant passwordless authentication with FIDO2

Passwordless authentication using FIDO2

FIDO2 authentication is regarded as phishing-resistant authentication because it:

  1. Removes passwords or shared secrets from the login workflow. Attackers cannot intercept passwords or use stolen credentials available on the dark web.
  2. Creates a strong binding between the browser session and the device being used. Login is allowed only from the device authenticating to an application.
  3. Ensures that the credential (public/private key) exchange can only happen between the device and the registered service provider. This prevents login to fake or phishing websites.

Using Duo with FIDO2 authenticators enables organizations to enforce phishing-resistant MFA in their environment. It also complies with the Office of Management and Budget (OMB) guidance issued earlier this year in a memo titled “Moving the U.S. Government Towards Zero Trust Cybersecurity Principles”. The memo specifically requires agencies to use phishing-resistant authentication method.

We understand that getting the IT infrastructure ready to support FIDO2 can be expensive and is typically a long-term project for organizations. In addition, deploying and managing 3rd party security keys creates IT overhead that some organizations are not able to undertake immediately.

Alternatively, using Duo Push for passwordless authentication is an easy, cost effective to get started on a passwordless journey for many organizations, without compromising on security.

Strong passwordless authentication using Duo Mobile

We have incorporated security into the login workflow to bind the browser session and the device being used. So, organizations get the same benefits of eliminating use of stolen credentials and mitigation of phishing attacks. To learn more about passwordless authentication with Duo Push, check out our post: Available Now! Passwordless Authentication Is Just a Tap Away.

 

 

Beyond passwordless: Thinking about Zero Trust Access and continuous verification

passwordless authentication

In addition to going passwordless, many organizations are looking to implement zero trust access in their IT environment. This environment typically is a mix of modern and legacy applications, meaning passwordless cannot be universally adopted. At least not until all applications can support modern authentication.

Additionally, organizations need to support a broad range of use cases to allow access from both managed and unmanaged (personal or 3rd party contractor) devices. And IT security teams need visibility into these devices and the ability to enforce compliance to meet the organization’s security policies such as ensuring that the operating system (OS) and web browser versions are up to date. The importance of verifying device posture at the time of authentication is emphasized in the guidance provided by OMB’s zero trust memorandum – “authorization systems should work to incorporate at least one device-level signal alongside identity information about the authenticated user.”

Duo can help organizations adopt a zero trust security model by enforcing strong user authentication across the board either through passwordless authentication where applicable or thought password + MFA where necessary, while providing a consistent user experience. Further, with capabilities such as device trust and granular adaptive policies, and with our vision for Continuous Trusted Access, organizations get a trusted security partner they can rely on for implementing zero trust access in their environment.

To learn more, check out the eBook – Passwordless: The Future of Authentication, which outlines a 5-step path to get started. And watch the passwordless product demo in this on-demand webinar .

Many of our customers have already begun their passwordless journey.  If you are looking to get started as well, sign-up for a free trial and reach out to our amazing representatives.

 


We’d love to hear what you think. Ask a Question, Comment Below, and Stay Connected with Cisco Secure on social!

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Hackers Behind Twilio Breach Also Targeted Cloudflare Employees

By Ravie Lakshmanan
Web infrastructure company Cloudflare on Tuesday disclosed at least 76 employees and their family members received text messages on their personal and work phones bearing similar characteristics as that of the sophisticated phishing attack against Twilio. The attack, which transpired around the same time Twilio was targeted, came from four phone numbers associated with T-Mobile-issued SIM cards

Your Phone May Soon Replace Many of Your Passwords

By BrianKrebs

Apple, Google and Microsoft announced this week they will soon support an approach to authentication that avoids passwords altogether, and instead requires users to merely unlock their smartphones to sign in to websites or online services. Experts say the changes should help defeat many types of phishing attacks and ease the overall password burden on Internet users, but caution that a true passwordless future may still be years away for most websites.

Image: Blog.google

The tech giants are part of an industry-led effort to replace passwords, which are easily forgotten, frequently stolen by malware and phishing schemes, or leaked and sold online in the wake of corporate data breaches.

Apple, Google and Microsoft are some of the more active contributors to a passwordless sign-in standard crafted by the FIDO (“Fast Identity Online”) Alliance and the World Wide Web Consortium (W3C), groups that have been working with hundreds of tech companies over the past decade to develop a new login standard that works the same way across multiple browsers and operating systems.

According to the FIDO Alliance, users will be able to sign in to websites through the same action that they take multiple times each day to unlock their devices — including a device PIN, or a biometric such as a fingerprint or face scan.

“This new approach protects against phishing and sign-in will be radically more secure when compared to passwords and legacy multi-factor technologies such as one-time passcodes sent over SMS,” the alliance wrote on May 5.

Sampath Srinivas, director of security authentication at Google and president of the FIDO Alliance, said that under the new system your phone will store a FIDO credential called a “passkey” which is used to unlock your online account.

“The passkey makes signing in far more secure, as it’s based on public key cryptography and is only shown to your online account when you unlock your phone,” Srinivas wrote. “To sign into a website on your computer, you’ll just need your phone nearby and you’ll simply be prompted to unlock it for access. Once you’ve done this, you won’t need your phone again and you can sign in by just unlocking your computer.”

As ZDNet notes, Apple, Google and Microsoft already support these passwordless standards (e.g. “Sign in with Google”), but users need to sign in at every website to use the passwordless functionality. Under this new system, users will be able to automatically access their passkey on many of their devices — without having to re-enroll every account — and use their mobile device to sign into an app or website on a nearby device.

Johannes Ullrich, dean of research for the SANS Technology Institute, called the announcement “by far the most promising effort to solve the authentication challenge.”

“The most important part of this standard is that it will not require users to buy a new device, but instead they may use devices they already own and know how to use as authenticators,” Ullrich said.

Steve Bellovin, a computer science professor at Columbia University and an early internet researcher and pioneer, called the passwordless effort a “huge advance” in authentication, but said it will take a very long time for many websites to catch up.

Bellovin and others say one potentially tricky scenario in this new passwordless authentication scheme is what happens when someone loses their mobile device, or their phone breaks and they can’t recall their iCloud password.

“I worry about people who can’t afford an extra device, or can’t easily replace a broken or stolen device,” Bellovin said. “I worry about forgotten password recovery for cloud accounts.”

Google says that even if you lose your phone, “your passkeys will securely sync to your new phone from cloud backup, allowing you to pick up right where your old device left off.”

Apple and Microsoft likewise have cloud backup solutions that customers using those platforms could use to recover from a lost mobile device. But Bellovin said much depends on how securely such cloud systems are administered.

“How easy is it to add another device’s public key to an account, without authorization?” Bellovin wondered. “I think their protocols make it impossible, but others disagree.”

Nicholas Weaver, a lecturer at the computer science department at University of California, Berkeley, said websites still have to have some recovery mechanism for the “you lost your phone and your password” scenario, which he described as “a really hard problem to do securely and already one of the biggest weaknesses in our current system.”

“If you forget the password and lose your phone and can recover it, now this is a huge target for attackers,” Weaver said in an email. “If you forget the password and lose your phone and CAN’T, well, now you’ve lost your authorization token that is used for logging in. It is going to have to be the latter. Apple has the infrastructure in place to support it (iCloud keychain), but it is unclear if Google does.”

Even so, he said, the overall FIDO approach has been a great tool for improving both security and usability.

“It is a really, really good step forward, and I’m delighted to see this,” Weaver said. “Taking advantage of the phone’s strong authentication of the phone owner (if you have a decent passcode) is quite nice. And at least for the iPhone you can make this robust even to phone compromise, as it is the secure enclave that would handle this and the secure enclave doesn’t trust the host operating system.”

The tech giants said the new passwordless capabilities will be enabled across Apple, Google and Microsoft platforms “over the course of the coming year.” But experts said it will likely take several more years for smaller web destinations to adopt the technology and ditch passwords altogether.

Recent research shows far too many people still reuse or recycle passwords (modifying the same password slightly), which presents an account takeover risk when those credentials eventually get exposed in a data breach. A report in March from cybersecurity firm SpyCloud found 64 percent of users reuse passwords for multiple accounts, and that 70 percent of credentials compromised in previous breaches are still in use.

A March 2022 white paper on the FIDO approach is available here (PDF). A FAQ on it is here.

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