CyberWatch

Mastodon Attackers Can Perform Remote Account Impersonation

By

By

Access Point Consulting

Summary

There is a vulnerability present in Mastodon, an open-source network server. It is identified as CVE-2024-23832 with a CVSS score of 9.4 according to CNA GitHub. This vulnerability is a result of insufficient origin validation allowing attackers to impersonate and take over any remote account.

Impact Assessment

This vulnerability can impact Integrity and Availability to a high degree and has a critical CVSS score of 9.4 meaning the vulnerability will have a high impact if exploited.

Affected Software

Every Mastodon version prior to 3.5.17 is vulnerable, as well as 4.0.x versions prior to 4.0.13, 4.1.x version prior to 4.1.13, and 4.2.x versions prior to 4.2.5.

What It Means for You

Identify if you or your organization manages any Mastodon instances, if so, follow remediation steps.

Remediation

It is advised by the vendor to update to version 4.2.5 of Mastodon, this can be done through a step-by-step process outlined in this article.

Business Implications

Depending on the account taken over from exploiting this vulnerability, the implications for a business could vary. Mastodon is typically used as a sort of social media, so it is possible an attacker could take over a remote account of an administrator or an individual of high standing in the Mastodon instance and perform phishing attacks or convince members to download malware. This could result in a loss of reputation and data at the very least.

Access Point Technology Recommends

Patch: Patching the Mastodon instance to the latest version is the only remediation or mitigation that can be provided for this vulnerability. Please follow the article linked above detailing on how to update Mastodon to the latest version.

Follow Advisory: If you or your organization requires more detail or would like to learn more about this vulnerability, Mastodon will update their advisory on the 15th of February with more details on this vulnerability.

Associated Bulletins

https://nvd.nist.gov/vuln/detail/CVE-2024-23832

https://github.com/mastodon/mastodon/commit/1726085db5cd73dd30953da858f9887bcc90b958

https://github.com/mastodon/mastodon/security/advisories/GHSA-3fjr-858r-92rw

Resources

Trending Articles & Security Reports

Resources

CyberWatch

November 22, 2024

Patch Updates, New Malware Threats, and the Ongoing Supply Chain Battle

On this episode of the CyberWatch podcast, there are updates to software across the application and OS spectrum. New malicious campaigns are threatening victims of all sizes, and researchers have performed dissections on malware to give defenders new clues about just what it is they're fighting. All this today, in CyberWatch.

Find out more
October 25, 2024

Ransomware, Supply Chain Attacks, and Nation-State Threats

CyberWatch, by Access Point Consulting, is your weekly source for emerging cybersecurity news, regulatory updates, and threat intelligence. Backed by experts in security consulting, regulatory compliance, and security operations, Access Point enables you to manage cyber risks, respond to incidents, and drive innovation in your company. Read here or on our website; listen on Spotify or Apple Podcasts; or watch on YouTube.website; listen on Spotify or Apple Podcasts; or watch on YouTube. .

Find out more
October 7, 2024

VINs and Losses: How Hackers Take Kias for a Ride

In the age of smart cars and connected devices, convenience often comes with hidden risks. A recently discovered critical vulnerability in Kia vehicles serves as a stark reminder of how our increasingly digital world is making cars new targets for cyberattacks. This vulnerability allowed hackers to remotely control various vehicle functions—using nothing more than a car's license plate number. It highlights the growing threat of cyberattacks on connected cars and the importance of cybersecurity in the automotive industry.

Find out more