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Privilege Escalation Attacks are when attackers acquire access to elevated (administrative) rights, or privileges, beyond a simple regular unprivileged user. Privilege Escalation progressively increases a hacker’s access to a computer system by exploiting inherent security vulnerabilities. They are classified into horizontal and vertical privilege escalation attacks based on the attack’s strategy and objective. Privilege escalation attacks may also have general targets like an entire system or network, but the attack can also be more focused such as a particular user or specific application.
Horizontal Privilege Escalation attack
Horizontal privilege escalation involves the attacker gaining access to a user account and increasing the permissions on that account. This type of privilege escalation is typically more challenging, as it generally requires a greater understanding of the system’s vulnerabilities and the greater use of hacking tools. Attackers often use phishing campaigns to perform the first step of gaining access to an account.
Several options are available for elevating permissions in horizontal privilege escalation. Exploiting operating system (OS) vulnerabilities is one of the most popular for gaining root-level access using a plain unprivileged user account to access or invoke an exploit for this type of horizontal privilege escalation attack.
Vertical Privilege Escalation attack
Vertical privilege escalation occurs when attackers gain direct access to an account that already has the privileges needed to accomplish their goal. This type of privilege escalation is easier to perform since it doesn’t require any steps beyond this. In this case, the attack focuses on identifying an account with the necessary privileges and obtaining access to that account. Multi-factor authentication can be a key defense against vertical privilege escalation attacks based upon account or credential theft and abuse.
What does this mean for an SMB?
SMBs need to take proactive measures to protect against hackers and accidental or malicious insider threats at your company.
Follow Least Privilege (drop user Admin rights)
Implementing the principle of Least Privilege by removing Administrator Rights from each employee is a vital step. It can mean the difference between a major ransomware compromise incident and no incident at all.
When an employee is tricked by a hacker into downloading and running malware on their computer, not having Administrative Rights should prevent the malware from installing. This lack of local computer system rights could prevent the malware from encrypting that user’s files as well as the files they can access on network file servers.
Establish Strong Patch and Vulnerability Management Processes
Standalone patch management solutions for companies not using the above-mentioned RMM solutions include ManageEngine, Automox, and Mosyle.
Additional Cybersecurity Recommendations
Additionally, these recommendations below will help you and your business stay secure with the various threats you may face on a day-to-day basis. All of the suggestions listed below can be gained by hiring CyberHoot’s vCISO services.
- Govern employees with policies and procedures. You need a password policy, an acceptable use policy, an information handling policy, and a written information security program (WISP) at a minimum.
- Train employees on how to spot and avoid phishing attacks. Adopt a Learning Management system like CyberHoot to teach employees the skills they need to be more confident, productive, and secure.
- Test employees with Phishing attacks to practice. CyberHoot’s Phish testing allows businesses to test employees with believable phishing attacks and put those that fail into remedial phish training.
- Deploy critical cybersecurity technology including two-factor authentication on all critical accounts. Enable email SPAM filtering, validate backups, deploy DNS protection, antivirus, and anti-malware on all your endpoints.
- In the modern Work-from-Home era, make sure you’re managing personal devices connecting to your network by validating their security (patching, antivirus, DNS protections, etc) or prohibiting their use entirely.
- If you haven’t had a risk assessment by a 3rd party in the last 2 years, you should have one now. Establishing a risk management framework in your organization is critical to addressing your most egregious risks with your finite time and money.
- Buy Cyber-Insurance to protect you in a catastrophic failure situation. Cyber-Insurance is no different than Car, Fire, Flood, or Life insurance. It’s there when you need it most.
All of these recommendations are built into CyberHoot the product or CyberHoot’s vCISO Services. With CyberHoot you can govern, train, assess, and test your employees. Visit CyberHoot.com and sign up for our services today. At the very least continue to learn by enrolling in our monthly Cybersecurity newsletters to stay on top of current cybersecurity updates.
To learn more about Privilege Escalation Attacks, watch this short 3-minute video:
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