Summary Twilio recently identified unauthorized access to information related to 163 Twilio customers, including Okta. Access was gained to internal Twilio systems, where data of some Okta customers was accessible to a threat actor (detailed below). Okta has determined that a small number of 1) Mobile phone numbers and 2) Associated SMS messages containing one-time passwords (“OTPs”) were accessible to the threat actor via the Twilio console. Okta has notified any customers where a phone...

Multi-factor Authentication (MFA) is very effective at limiting what an adversary can do with a stolen password. According to research commissioned by Google in 2019, MFA thwarted 99% of automated credential-based attacks and 93% of phishing campaigns. It remains one of the most essential and effective controls against account takeovers. In some circumstances (outlined below), MFA can be bypassed. Okta’s Cyber Threat Research team has observed the proliferation of malware designed to extract...

Update 06-21-2022: Eleven new System Log events have been added to the Github project to bring the total number of cataloged events to a lucky 777. When I started writing this post, there were 766 potential System Log types that can appear in System Log, the logging platform in every Okta administrative console. By the time I finished it, there were 768. Things move fast in the cloud. While the most important of these events are well documented already, the significance of others are only...

Last Updated: 3/4/2022 1.30pm Pacific Time Three critical vulnerabilities have been identified affecting the Java Spring Framework and related software components - with one specific CVE being known as Spring4Shell/SpringShell (CVE-2022-22965). CVE-2022-22965 : Within Spring Core, A Spring MVC or Spring WebFlux application running on JDK 9+ may be vulnerable to remote code execution (RCE) via data binding. Okta Security has triaged the Spring4Shell vulnerability, and determined Okta is not...

Last updated: 03/22/2022 12.00pm, Pacific Time Please note - Following this update all further information will be published at: https://www.okta.com/blog/2022/03/updated-okta-statement-on-lapsus/ The Okta service has not been breached and remains fully operational. There are no corrective actions that need to be taken by our customers. In January 2022, Okta detected an unsuccessful attempt to compromise the account of a customer support engineer working for a third-party provider. As part...

Given the premise that “identity is the new perimeter”, we’re often asked about the role network attributes should play in restricting access to applications, servers and data. Can we, and should we, for example, deny access requests originating in high-risk countries or countries involved in conflict? The reality is that network context still matters. We can take into account the identity of the network and location our users are authenticating from. If a customer determines that there are no...

UPDATE 17/04/23: Okta has published internal detection logic for abuse of Push notifications and shared these detections with security analytics partners. I’m the proud parent of 13-year-old fraternal twins. Most of the time they’re wonderful smaller humans, but sometimes they drive me bonkers with endless streams of rapid-fire, closed-ended questions. Here’s an example of a recent, pre-dinnertime question barrage: “Are you making pizza for dinner with your special dough? Did you get the...

Quarter by quarter, for three years now, abuse of Remote Desktop Protocol (RDP) has been the most common root cause of all ransomware events. It’s no surprise why RDP makes for an attractive target: RDP is the primary vehicle for remote access to Windows servers and is used for administrative functions. It’s the most commonly listed method of remote access sold by initial access brokers. According to some 2019 research [pdf] by Sophos, an open RDP port gets its first connection request...

Does your organization still allow users to authenticate to Office 365 or other Microsoft services using only a username and password? If you do, you’re 53x more likely to be targeted in credential-based attacks . (No, not 53% more likely. It’s 53 times more likely). Many organizations (at least one in ten Microsoft customers, as of October 2021 ) still allow access to the M365 cloud using what Microsoft calls “Legacy Authentication”. In these requests, the client forwards the username and...

Last Updated: 1/12/2022 3.30pm Pacific Time The Okta Security team continues to investigate and evaluate the Log4j Java library remote code execution (RCE) vulnerability (CVE-2021-44228), also known as Log4Shell. Log4j is a Java-based logging utility found in a wide number of software products. The vulnerability was disclosed by the Apache Log4j project on Thursday, December 9, 2021. If exploited, it could potentially allow a remote attacker to execute code on the server if the system logs an...