We are glad to inform you that SupportPRO added another jewel to our crown recently as we achieved cPanel SafeAdmin Accreditation. The Certification is to ensure that the sysadmin companies have a resistant awareness of safe, secure, and effective Linux and cPanel & WHM server administration methods. It is very important to mention that cPanel Certification gives the opportunity to acquire an admirable value for our company from our current and future clients. The best thing about the cPanel certification process is that it follows industry standards and their training materials are inline with their new releases. At SupportPRO, we regularly go through cPanel training programs and hence our staff is up-to-date with their new features, add-ons, and any security …
Server Security
Network configuration in Ubuntu 18.04 LTS using netplan
With Ubuntu 18.04 onwards, configuring IP addresses stands different from the older versions. When comparing with the previous versions the Ubuntu is using a new utility called Netplan – another order line arrange design utility, to arrange an IP address. Netplan has been presented by Ubuntu engineers in Ubuntu 17.10 where we no longer use the “interfaces” file to configure IP address but does the task using a YAML file with all default arrangement documents found under /etc/netplan/ directory. In this blog, we will check on how to design static and dynamic IP address in Ubuntu 18.04 LTS server. (more…)
Apache Struts 2 is an open-source framework widely used for developing Java web applications. On March 6, 2017, a critical security vulnerability identified as CVE-2017-5638 was publicly disclosed. This flaw allowed attackers to execute remote code on vulnerable servers by sending specially crafted malicious requests. The vulnerability occurs when a server processes file uploads using a Jakarta-based multipart parser. Attackers can exploit this weakness by embedding malicious commands within the Content-Type header of a file upload request. When processed by affected versions of Apache Struts 2, the server may execute these commands, leading to unauthorized access or complete system compromise. The issue specifically affects Apache Struts 2.3.x versions prior to 2.3.32 and 2.5.x versions prior to 2.5.10.1, where improper handling …
A serious vulnerability named Dirty COW has been discovered recently which has put the Linux kernel under risk. It is said that this vulnerability was noticed nine years ago (since version 2.6.22 in 2007) and remained unnoticed throughout this time. A researcher named Phil Oester was the man behind the detection of this serious threat. According to him, the vulnerability is described as a race condition where the Linux kernel’s memory subsystem handles the copy-on-write (COW) breakage of private read-only memory mappings. In this way, the attackers gain write access to read-only memory updates and this paves the way to their increased privileges on the system.
Security researchers identified a new OpenSSL vulnerability, called DROWN( Decrypting RSA with Obsolete and Weakened Encryption ) on March 2016. This attack was focused on servers that use the more secure TLS protocol, which also supports the obsolete SSLv2.This vulnerability allows an attacker to decrypt the highly secured TLS encrypted communication if the server houses SSLv2 cipher support. DROWN was assigned the CVE-2016-0800 id by the us-nert on the march (https://www.us-cert.gov/ncas/bulletins/SB16-067 ). More than 11 million websites that use TLS were vulnerable to DROWN attack. If your website is protected by TLS and your server directly on indirectly supports the older SSLv2, you are also vulnerable and an attacker may exploit it to get important information such as user names, …
Nowadays, brute force attacks on servers/websites are frequent. A brute force attack is generally a password-guessing technique. It is a type of attack that tries every possible combination of characters or data in order to find the decrypted message. Brute force guarantees finding the key – it tries every possible combination and does not rely on any potentially incomplete dictionaries or lists of possible keys. cPHulk Brute Force Protection is an inbuilt protection used in WHM to prevent brute force attacks. cPHulk Brute Force Protection will detect and block continuous failed login attempts from IP addresses. cPHulk is a brute force protection system developed by the cPanel team and is exclusive to cPanel / WHM control panels. It has been integrated …
Installation and configuration of ‘Pyxsoft Antimalware’ in cPanel servers
Pyxsoft antimalware Plugin for cPanel/WHM protects your server from attacker scripts such as c99shell, r57shell, ANIShell, and hundreds more. It is a real-time Anti Malware for cPanel/WHM. Attackers can take control of your servers or can damage your customer’s data by uploading one of these scripts. Pyxsoft antimalware plugin works to protects your server in two ways: Protecting from the six server’s entrance SQL Injection Legitimate Access (SSH, cPanel etc) Web Forms FTP Brute Force Attacks Installed Trojans or shells (more…)
As we are aware, usually installing SSL Certificate requires Dedicated IP . The cost of this address is typically being passed down to the end user. Also the IPv4 address will be filled completely if every domain require a dedicated IP. So administrators decided to use multiple SSL installation on a single IP. Thus SNI (Server Name Identification) is established. >> What is SNI : —————— Server Name Indication (SNI) is an extension to the TLS protocol that indicates what hostname the client is attempting to connect. SNI is an extension of the TLS protocol, which allows browsers and servers to map multiple SSL-secured domain names to one IP address and gate, without this making any difference to the site …
The SSLv3 POODLE vulnerability, disclosed on October 14, 2014, is a protocol-level security flaw affecting the SSL 3.0 encryption standard. POODLE, which stands for Padding Oracle On Downgraded Legacy Encryption, exploits weaknesses in how SSLv3 handles padding during encryption. This vulnerability arises when plaintext is converted into ciphertext. To match cryptographic requirements, extra padding is added, and during decryption, this padding can leak sensitive information. Attackers can take advantage of this flaw through a man-in-the-middle (MITM) attack, gradually decrypting secure communications. How to Check if Your WHM/cPanel Server is Vulnerable To verify whether SSLv3 is enabled on your server, log in via SSH as the root user and run the following command: Example: A typical secure response will show: Advanced …
The VENOM vulnerability, also known as the QEMU virtual machine exploit, is a critical security flaw discovered on May 13, 2015 by security researcher Jason Geffner during a security review of virtual machine hypervisors. VENOM stands for Virtualized Environment Neglected Operations Manipulation and affects virtualization environments that rely on the QEMU emulator. What Is the VENOM Vulnerability? VENOM (CVE-2015-3456) is a virtual machine escape vulnerability located in the Virtual Floppy Disk Controller (FDC) code used by QEMU. Many popular virtualization platforms depend on QEMU components, including: If successfully exploited, the vulnerability allows an attacker to: This makes VENOM particularly dangerous in shared hosting and cloud infrastructures. How the VENOM Exploit Works The flaw exists in the emulated floppy drive functionality …