Over 25,000 Servers Compromised with CyberPanel Vulnerability
In an unfortunate event on October 29, 2024, a significant cybersecurity incident occurred, leading to the compromise of over 25,000 servers.
The CyberPanel vulnerability paved the way for the malicious PSAUX Ransomware to infiltrate countless systems, causing substantial disruption and loss. This article delves into the details of this cybersecurity breach, highlighting the consequences and emphasizing the importance of robust security measures.
About CyberPanel
CyberPanel, a popular web hosting control panel solution, is widely used by website administrators and hosting providers around the world.
Unfortunately, a critical vulnerability within the software allowed cybercriminals to exploit a weakness and gain unauthorized access to thousands of servers. This vulnerability provided an entry point for the PSAUX Ransomware, wreaking havoc on security systems and valuable data.
The PSAUX Ransomware Attack

The PSAUX Ransomware, known for its destructive capabilities, utilized the CyberPanel vulnerability to infiltrate and compromise servers on an unprecedented scale.
The attack involved encrypting crucial website data into .locked file, rendering it inaccessible and holding it hostage for a ransom. The cybercriminals behind the attack targeted a broad range of industries, including e-commerce, finance, and government institutions, exacerbating the impact of the incident.
Mitigating the CyberPanel Vulnerability
There are two scenarios: one for users with SSH access and one for users without it.
Users with SSH Access:
If you have SSH access to your server, mitigating the CyberPanel vulnerability is relatively straightforward. Simply follow the update guide provided by CyberPanel to ensure that your panel is up to date. Regularly checking for updates and promptly installing them is crucial to patch any known vulnerabilities. By doing so, you can significantly reduce the risk of exploitation and unauthorized access.
Users without SSH Access:
In some cases, users may find themselves without SSH access due to server overload caused by hacking attempts, resulting in their provider blocking IP or port 22 access. If you find yourself in this situation, the following steps can help you regain access and mitigate the vulnerability:
a. Contact your service provider: Reach out to your hosting service provider and inform them about the blocked IP or port 22 access. Request them to enable port 22, which will allow SSH connectivity.
b. Contact CyberPanel Support: Once the port is enabled, proceed to update your CyberPanel to the latest version as per the update guide provided.
If you encounter any challenges during the update process or need further assistance, you can share access details with the CyberPanel support team at help@cyberpanel.net. They will provide the necessary guidance to ensure that your panel is secure and up to date.
Above solution might not work for everyone because of the level of compromise, in that case we suggest you to Reinstall the machine and restore the backup if you have otherwise till now many users unable to resolve the issue.
FAQs
What is the CyberPanel vulnerability that was exploited?
A critical security flaw in CyberPanel allowed attackers to gain unauthorized access to servers running the control panel. This vulnerability was exploited by the PSAUX ransomware to compromise over 25,000 servers on October 29, 2024.
How do I know if my CyberPanel server was compromised?
If your server was affected, you will find files encrypted with a .locked extension and may be unable to access your website data. You might also notice ransom notes left on the server requesting payment for decryption.
How do I fix a compromised CyberPanel server?
If you have SSH access, update CyberPanel to the latest version immediately. If you cannot access SSH, contact your hosting provider to enable port 22, then update. For severely compromised servers, reinstall the OS and restore from a clean backup.
Should I pay the PSAUX ransomware ransom?
Security experts generally advise against paying ransomware demands. There is no guarantee attackers will decrypt your data after payment. Instead, focus on restoring from backups and updating your server software to prevent reinfection.
Is CyberPanel safe to use now?
The CyberPanel team has released security patches to address the vulnerability. As long as you keep CyberPanel updated to the latest version and follow security best practices like regular backups and strong passwords, it is safe to use.