#1 Trusted Cybersecurity News Platform Followed by 4.50+ million
The Hacker News Logo
Subscribe – Get Latest News
Insider Risk Management

OAuth | Breaking Cybersecurity News | The Hacker News

Malware Using Google MultiLogin Exploit to Maintain Access Despite Password Reset

Malware Using Google MultiLogin Exploit to Maintain Access Despite Password Reset
Jan 03, 2024 Malware / Data Theft
Information stealing malware are actively taking advantage of an undocumented Google OAuth endpoint named MultiLogin to hijack user sessions and allow continuous access to Google services even after a password reset. According to CloudSEK, the  critical exploit  facilitates session persistence and cookie generation, enabling threat actors to maintain access to a valid session in an unauthorized manner. The technique was first revealed by a threat actor named PRISMA on October 20, 2023, on their Telegram channel. It has since been  incorporated  into  various malware-as-a-service (MaaS) stealer families , such as Lumma, Rhadamanthys, Stealc, Meduza, RisePro, and WhiteSnake. The MultiLogin authentication endpoint is primarily designed for synchronizing Google accounts across services when users sign in to their accounts in the Chrome web browser (i.e.,  profiles ).  A reverse engineering of the Lumma Stealer code has revealed that the technique targets the "Chrome's token_

Design Flaw in Google Workspace Could Let Attackers Gain Unauthorized Access

Design Flaw in Google Workspace Could Let Attackers Gain Unauthorized Access
Nov 28, 2023 Data Security / Data Breach
Cybersecurity researchers have detailed a "severe design flaw" in Google Workspace's domain-wide delegation ( DWD ) feature that could be exploited by threat actors to facilitate privilege escalation and obtain unauthorized access to Workspace APIs without super admin privileges. "Such exploitation could result in theft of emails from Gmail, data exfiltration from Google Drive, or other unauthorized actions within Google Workspace APIs on all of the identities in the target domain," cybersecurity firm Hunters  said  in a technical report shared with The Hacker News. The design weakness – which remains active to this date – has been codenamed  DeleFriend  for its ability to manipulate existing delegations in the Google Cloud Platform (GCP) and Google Workspace without possessing super admin privileges. When reached for comment, Google disputed the characterization of the issue as a design flaw. "This report does not identify an underlying security issue in ou

Critical OAuth Flaws Uncovered in Grammarly, Vidio, and Bukalapak Platforms

Critical OAuth Flaws Uncovered in Grammarly, Vidio, and Bukalapak Platforms
Oct 25, 2023
Critical security flaws have been disclosed in the Open Authorization (OAuth) implementation of popular online services such as Grammarly, Vidio, and Bukalapak, building upon previous shortcomings uncovered in  Booking[.]com and Expo . The weaknesses, now addressed by the respective companies following responsible disclosure between February and April 2023, could have allowed malicious actors to obtain access tokens and potentially hijack user accounts. OAuth is a  standard  that's commonly used as a mechanism for cross-application access, granting websites or applications access to their information on other websites, such as Facebook, but without giving them the passwords. "When OAuth is used to provide service authentication, any security breach in it can lead to identity theft, financial fraud, and access to various personal information including credit card numbers, private messages, health records, and more, depending on the specific service being attacked," Sa

Protecting Your Organization From Insider Threats - All You Need to Know

cyber security
websiteWing SecuritySaaS Security
Get practical insights and strategies to manage inadequate offboarding and insider risks effectively.

What's the Right EDR for You?

What's the Right EDR for You?
May 10, 2024Endpoint Security / Threat Detection
A guide to finding the right endpoint detection and response (EDR) solution for your business' unique needs. Cybersecurity has become an ongoing battle between hackers and small- and mid-sized businesses. Though perimeter security measures like antivirus and firewalls have traditionally served as the frontlines of defense, the battleground has shifted to endpoints. This is why endpoint detection and response (EDR) solutions now serve as critical weapons in the fight, empowering you and your organization to detect known and unknown threats, respond to them quickly, and extend the cybersecurity fight across all phases of an attack.  With the growing need to defend your devices from today's cyber threats, however, choosing the right EDR solution can be a daunting task. There are so many options and features to choose from, and not all EDR solutions are made with everyday businesses and IT teams in mind. So how do you pick the best solution for your needs? Why EDR Is a Must Because of

How to Investigate an OAuth Grant for Suspicious Activity or Overly Permissive Scopes

How to Investigate an OAuth Grant for Suspicious Activity or Overly Permissive Scopes
Aug 21, 2023 SaaS Security / Authentication
From a user's perspective, OAuth works like magic. In just a few keystrokes, you can whisk through the account creation process and gain immediate access to whatever new app or integration you're seeking. Unfortunately, few users understand the implications of the permissions they allow when they create a new OAuth grant, making it easy for malicious actors to manipulate employees into giving away unintended access to corporate environments. In one of the  highest-profile examples , Pawn Storm's attacks against the Democratic National Convention and others leveraged OAuth to target victims through social engineering.  Security and IT teams would be wise to establish a practice of reviewing new and existing OAuth grants programmatically to catch risky activity or overly-permissive scopes. And, there are new solutions for  SaaS security  cropping up that can make this process easier. Let's take a look at some best practices for prioritizing and investigating your organization's grants

Critical 'nOAuth' Flaw in Microsoft Azure AD Enabled Complete Account Takeover

Critical 'nOAuth' Flaw in Microsoft Azure AD Enabled Complete Account Takeover
Jun 21, 2023 Authentication / Vulnerability
A security shortcoming in Microsoft Azure Active Directory (AD) Open Authorization ( OAuth ) process could have been exploited to achieve full account takeover, researchers said. California-based identity and access management service Descope, which discovered and reported the issue in April 2023, dubbed it  nOAuth . "nOAuth is an authentication implementation flaw that can affect Microsoft Azure AD multi-tenant OAuth applications," Omer Cohen, chief security officer at Descope,  said . The misconfiguration has to do with how a malicious actor can modify email attributes under "Contact Information" in the Azure AD account and exploit the "Log in with Microsoft" feature to hijack a victim account. To pull off the attack, all an adversary has to do is to create and access an Azure AD admin account and modify their email address to that of a victim and take advantage of the single sign-on scheme on a vulnerable app or website. "If the app merges u

Critical OAuth Vulnerability in Expo Framework Allows Account Hijacking

Critical OAuth Vulnerability in Expo Framework Allows Account Hijacking
May 27, 2023 API Security / Vulnerability
A critical security vulnerability has been disclosed in the Open Authorization (OAuth) implementation of the application development framework Expo.io. The shortcoming, assigned the CVE identifier  CVE-2023-28131 , has a severity rating of 9.6 on the CVSS scoring system. API security firm Salt Labs  said  the issue rendered services using the framework susceptible to credential leakage, which could then be used to hijack accounts and siphon sensitive data. Under certain circumstances, a threat actor could have taken advantage of the flaw to perform arbitrary actions on behalf of a compromised user on various platforms such as Facebook, Google, or Twitter. Expo, similar to Electron, is an open source platform for developing universal native apps that run on Android, iOS, and the web. It's worth noting that for the attack to be successful, sites and applications using Expo should have configured the AuthSession Proxy setting for single sign-on (SSO) using a third-party provider

Uncovering (and Understanding) the Hidden Risks of SaaS Apps

Uncovering (and Understanding) the Hidden Risks of SaaS Apps
Apr 19, 2023 SaaS Security
Recent data breaches across CircleCI, LastPass, and Okta underscore a common theme: The enterprise SaaS stacks connected to these industry-leading apps can be at serious risk for compromise. CircleCI, for example, plays an integral, SaaS-to-SaaS role for SaaS app development. Similarly, tens of thousands of organizations rely on Okta and LastPass security roles for SaaS identity and access management. Enterprise and niche SaaS apps alike have effectively introduced multitudes of unmonitored endpoints into organizations of all sizes.  While  spending for SaaS security  is trending up, it lags behind categories such as cloud infrastructure protection and network security. According to Statista, the average organization employs 100+ SaaS apps, many of which are unsanctioned by IT, creating a glaring gap in SaaS security.  Why Users Flock to SaaS Apps — And Often Bypass IT in the Process As productivity tools for tasks such as marketing automation, document signature, and sales foreca

Hackers Abused Microsoft's "Verified Publisher" OAuth Apps to Breach Corporate Email Accounts

Hackers Abused Microsoft's "Verified Publisher" OAuth Apps to Breach Corporate Email Accounts
Feb 01, 2023 Enterprise Security / Authentication
Microsoft on Tuesday said it took steps to disable fake Microsoft Partner Network (MPN) accounts that were used for creating malicious  OAuth  applications as part of a phishing campaign designed to breach organizations' cloud environments and steal email. "The applications created by these fraudulent actors were then used in a consent phishing campaign, which tricked users into granting permissions to the fraudulent apps," the tech giant  said . "This phishing campaign targeted a subset of customers primarily based in the U.K. and Ireland." Consent phishing is a  social engineering attack  wherein users are tricked into granting permissions to malicious cloud applications, which can then be weaponized to gain access to legitimate cloud services and sensitive user data. The Windows maker said it became aware of the campaign on December 15, 2022. It has since alerted affected customers via email, with the company noting that the threat actors abused the conse

Is 3rd Party App Access the New Executable File?

Is 3rd Party App Access the New Executable File?
May 30, 2022
It's no secret that 3rd party apps can boost productivity, enable remote and hybrid work and are overall, essential in building and scaling a company's work processes.  An innocuous process much like clicking on an attachment was in the earlier days of email, people don't think twice when connecting an app they need with their Google workspace or M365 environment, etc. Simple actions that users take, from creating an email to updating a contact in the CRM, can result in several other automatic actions and notifications in the connected platforms.  As seen in the image below, the OAuth mechanism makes it incredibly easy to interconnect apps and many don't consider what the possible ramifications could be. When these apps and other add-ons for SaaS platforms ask for permissions' access, they are usually granted without a second thought, presenting more opportunities for bad actors to gain access to a company's data. This puts companies at risk for supply chain

Nearly 100,000 NPM Users' Credentials Stolen in GitHub OAuth Breach

Nearly 100,000 NPM Users' Credentials Stolen in GitHub OAuth Breach
May 27, 2022
Cloud-based repository hosting service GitHub on Friday shared additional details into the theft of its integration OAuth tokens last month, noting that the attacker was able to access internal NPM data and its customer information. "Using stolen OAuth user tokens originating from two third-party integrators, Heroku and Travis CI, the attacker was able to escalate access to NPM infrastructure," Greg Ose said , adding the attacker then managed to obtain a number of files - A database backup of skimdb.npmjs.com consisting of data as of April 7, 2021, including an archive of user information from 2015 and all private NPM package manifests and package metadata. The archive contained NPM usernames, password hashes, and email addresses for roughly 100,000 users. A set of CSV files encompassing an archive of all names and version numbers of published versions of all NPM private packages as of April 10, 2022, and  A "small subset" of private packages from two organiz

Heroku Forces User Password Resets Following GitHub OAuth Token Theft

Heroku Forces User Password Resets Following GitHub OAuth Token Theft
May 05, 2022
Salesforce-owned subsidiary Heroku on Thursday acknowledged that the theft of GitHub integration OAuth tokens further involved unauthorized access to an internal customer database. The company, in an  updated notification , revealed that a compromised token was abused to breach the database and "exfiltrate the hashed and salted passwords for customers' user accounts." As a consequence, Salesforce said it's resetting all Heroku user passwords and ensuring that potentially affected credentials are refreshed. It also emphasized that internal Heroku credentials were rotated and extra detections have been put in place. The attack campaign, which GitHub  discovered  on April 12, related to an unidentified actor leveraging stolen OAuth user tokens issued to two third-party OAuth integrators, Heroku and Travis-CI, to download data from dozens of organizations, including NPM. The timeline of events as shared by the cloud platform is as follows - April 7, 2022  - Threat

GitHub Says Recent Attack Involving Stolen OAuth Tokens Was "Highly Targeted"

GitHub Says Recent Attack Involving Stolen OAuth Tokens Was "Highly Targeted"
May 03, 2022
Cloud-based code hosting platform GitHub described the recent  attack campaign  involving the abuse of OAuth access tokens issued to Heroku and Travis CI as "highly targeted" in nature. "This pattern of behavior suggests the attacker was only listing organizations in order to identify accounts to selectively target for listing and downloading private repositories," GitHub's Mike Hanley  said  in an updated post. The  security incident , which it discovered on April 12, related to an unidentified attacker leveraging stolen OAuth user tokens issued to two third-party OAuth integrators, Heroku and Travis CI, to download data from dozens of organizations, including NPM. The Microsoft-owned company said last week that it's in the process of sending a final set of notifications to GitHub customers who had either the Heroku or Travis CI OAuth app integrations authorized in their accounts. According to a detailed step-by-step analysis carried out by GitHub, th

Warning! Don't Click that Google Docs Link You Just Received in Your Email

Warning! Don't Click that Google Docs Link You Just Received in Your Email
May 03, 2017
Did someone just share a random Google Doc with you? First of all — Do not click on that Google Doc link you might have just received in your email and delete it immediately — even if it's from someone you know. I, my colleagues at The Hacker News, and even people all around the Internet, especially journalists, are receiving a very convincing OAuth phishing email, which says that the person [sender] " has shared a document on Google Docs with you. " Once you clicked the link, you will be redirected to a page which says, " Google Docs would like to read, send and delete emails, as well access to your contacts, " asking your permission to "allow" access. If you allow the access, the hackers would immediately get permission to manage your Gmail account with access to all your emails and contacts, without requiring your Gmail password. Beware! New GoogleDocs Phishing Email Scam Spreading Across the World — Here's Everything You Need to K

Nasty Covert Redirect Vulnerability found in OAuth and OpenID

Nasty Covert Redirect Vulnerability found in OAuth and OpenID
May 03, 2014
After Heartbleed bug , a security flaw in widely used open-source software OpenSSL that puts countless websites at risk, another vulnerability has been found in popular authentication software OpenID and authorization software OAuth. Wang Jing , a Chinese mathematics Ph.D student at the Nanyang Technological University in Singapore, found that the OAuth and OpenID open source login tools are vulnerable to the " Covert Redirect " exploit. The login tools ' OAuth ' and 'OpenID' protocols are the commonly used open standard for authorization. OAuth designed as a way for users to sign in or sign up for other services using an existing identity of a site such as Google, Facebook, Microsoft or Twitter, whereas OpenID is a decentralized authentication system for the Internet that allows users to log in at websites across the internet with same digital identity. The Covert Redirect vulnerability could affect those who use 'OAuth' and 'OpenID' protocols to 'login' to the websites

Hacking Facebook User 'Access Token' with Man-in-the-Middle Attack

Hacking Facebook User 'Access Token' with Man-in-the-Middle Attack
Mar 11, 2014
Facebook has several security measures to protect users' account, such as a user " access token " is granted to the Facebook application (like  Candy Crush Saga, Lexulous Word Game ), when the user authorizes it, it provides temporary and secure access to Facebook APIs. To make this possible, users have to ' allow or accep t' the application request so that an app can access your account information with the required permissions. The Access Token stores information about permissions that have been granted as well as information about when the token will expire and which app generated it. Approved Facebook apps can publish or delete content on your behalf using the access tokens, rather than your Facebook password. Access tokens are pretty sensitive, because anyone who knows the access token of a user can access the user's data and can perform any actions on behalf of the user, till the token is valid. In Past years, Many Security Researchers

Facebook Open URL Redirection vulnerability

Facebook Open URL Redirection vulnerability
Nov 16, 2013
Security Researcher Dan Melamed discovered an Open URL redirection vulnerability in Facebook that allowed him to have a facebook.com link redirect to any website without restrictions. An open URL Redirection flaw is generally used to convince a user to click on a trusted link which is specially crafted to take them to an arbitrary website, the target website could be used to serve a malware or for a phishing attack . An Open URL Redirection url flaw in Facebook platform and third party applications also exposes the user's access token at risk if that link is entered as the final destination in an Oauth dialog . The Facebook Open URL Redirection vulnerability exists at landing.php  page with " url " parameter, i.e. https://facebook.com/campaign/landing.php?url=https://yahoo.com This URL will always redirects user to the Facebook 's homepage, but it is sufficient to manipulate the "url" parameter assigning a random string: https://facebo
Expert Insights
Cybersecurity Resources