forums.plex.tv Important Notice of Security Incident - Announcements - Plex Forum
We have recently experienced a security incident that may potentially involve your Plex account information. We believe the actual impact of this incident is limited; however, action is required from you to ensure your account remai
What happened
An unauthorized third party accessed a limited subset of customer data from one of our databases. While we quickly contained the incident, information that was accessed included emails, usernames, securely hashed passwords and authentication data.
Any account passwords that may have been accessed were securely hashed, in accordance with best practices, meaning they cannot be read by a third party. Out of an abundance of caution, we recommend you take some additional steps to secure your account (see details below). Rest assured that we do not store credit card data on our servers, so this information was not compromised in this incident.
What we’re doing
We’ve already addressed the method that this third party used to gain access to the system, and we’re undergoing additional reviews to ensure that the security of all of our systems is further strengthened to prevent future attacks.
What you must do
If you use a password to sign into Plex: We kindly request that you reset your Plex account password immediately by visiting https://plex.tv/reset. When doing so, there’s a checkbox to “Sign out connected devices after password change,” which we recommend you enable. This will sign you out of all your devices (including any Plex Media Server you own) for your security, and you will then need to sign back in with your new password.
If you use SSO to sign into Plex: We kindly request that you log out of all active sessions by visiting https://plex.tv/security and clicking the button that says ”Sign out of all devices”. This will sign you out of all your devices (including any Plex Media Server you own) for your security, and you will then need to sign back in as normal.
Additional Security Measures You Can Take
We remind you that no one at Plex will ever reach out to you over email to ask for a password or credit card number for payments. For further account protection, we also recommend enabling two-factor authentication on your Plex account if you haven’t already done so.
Lastly, we sincerely apologize for any inconvenience this situation may cause you. We take pride in our security systems, which helped us quickly detect this incident, and we want to assure you that we are working swiftly to prevent potential future incidents from occurring.
For step-by-step instructions on how to reset your password, visit:https://support.plex.tv/articles/account-requires-password-reset
bleepingcomputer.com - Plex has notified some of its users on Thursday to urgently update their media servers due to a recently patched security vulnerability.
The company has yet to assign a CVE-ID to track the flaw and didn't provide additional details regarding the patch, only saying that it impacts Plex Media Server versions 1.41.7.x to 1.42.0.x.
Yesterday, four days after releasing security updates that addressed the mysterious security bug, Plex emailed those running affected versions to update their software as soon as possible.
"We recently received a report via our bug bounty program that there was a potential security issue affecting Plex Media Server versions 1.41.7.x to 1.42.0.x. Thanks to that user, we were able to address the issue, release an updated version of the server, and continue to improve our security and defenses," the company said in the email.
"You're receiving this notice because our information indicates that a Plex Media Server owned by your Plex account is running an older version of the server. We strongly recommend that everyone update their Plex Media Server to the most recent version as soon as possible, if you have not already done so."
Plex Media Server 1.42.1.10060, the version that patches this vulnerability, can be downloaded from the server management page or the official downloads page.
While Plex hasn't shared any details regarding the vulnerability so far, users are advised to follow the company's advice and patch their software before threat actors reverse engineer the patches and develop an exploit.
Although Plex has experienced its share of critical and high-severity security flaws over the years, this is one of the few instances where the company has emailed customers about securing their systems against a specific vulnerability.
In March 2023, CISA tagged a three-year-old remote code execution (RCE) flaw (CVE-2020-5741) in the Plex Media Server as actively exploited in attacks. As Plex explained two years earlier, when it released patches, successful exploitation can allow attackers to make the server execute malicious code.
While the cybersecurity agency didn't provide any information on the attacks exploiting CVE-2020-5741, they were likely linked to LastPass' disclosure that one of its senior DevOps engineers' computers had been hacked in 2022 to install a keylogger by abusing a third-party media software RCE bug.
The attackers exploited this access to steal the engineer's credentials and compromise the LastPass corporate vault, resulting in a massive data breach in August 2022 after stealing LastPass's production backups and critical database backups.
The same month, Plex also notified users of a data breach and asked them to reset passwords after an attacker gained access to a database containing emails, usernames, and encrypted passwords.
