6 Common Patch Management Mistakes and How to Avoid Them

You can greatly enhance the efficiency of your patch management process by tracking common patch management mistakes. Patching is not just about keeping systems up-to-date. It should be a comprehensive approach to safeguarding IT infrastructures against a spectrum of cyber threats, ensuring systems remain secure, compliant, and operationally efficient. 

However, even the most well-intentioned patch management strategies can falter, leading to vulnerabilities that cyber adversaries can exploit. Recognizing and understanding the common mistakes made during the patch management process is essential for organizations aiming to fortify their defenses against these threats.

This article aims to shed light on the pivotal missteps in patch management and offer strategies for mitigating these errors. By focusing on key performance indicators, we will first establish why a solid foundation in patch management practices is crucial for any cybersecurity strategy.

📌 Watch Patch Management Mistakes and How to Avoid Them for a visual overview of this topic.

Patching key performance indicators

Evaluating the following indicators helps organizations identify areas for improvement in their patch management processes, ensuring they can effectively adapt to and mitigate evolving cybersecurity threats. Given the rapid evolution of cyber threats, staying ahead requires a proactive and comprehensive approach to patch management. 

• Patch rate: Measures how consistently systems are updated against known vulnerabilities.
• Adherence to patch schedules: Tracks how promptly patches are deployed to minimize exposure to attacks.
• Vulnerability exposure time: Time from vulnerability disclosure to patching; shorter times show stronger responsiveness.
• Patch success rate: Percentage of successfully applied patches, highlighting deployment or compatibility issues.
• Critical patches deployment time: Measures how quickly critical patches are deployed, with faster times reducing risk.
• Compliance rate with security standards: Assesses alignment with relevant industry regulations (e.g., PCI DSS, HIPAA, GDPR).
• Incident response time to failed patches: Time taken to resolve failed patches; shorter times limit risks and disruptions.
• User downtime due to patching: Measures patching-related downtime and its impact on user’s and organization’s productivity.
• Patch coverage rate: Percentage of systems/applications covered by patching, showing protection breadth.
• Re-patch rate: Frequency of reapplying or rolling back patches, indicating stability and quality.

Incorporating these patch management KPIs into a comprehensive patch management strategy enables organizations to address current security needs and anticipate future challenges. By continuously monitoring and analyzing these indicators, businesses can refine their patch management processes, enhancing their agility and responsiveness to new vulnerabilities.

Taking a more proactive approach solidifies an organization’s defense against cyber threats, ensuring the security and reliability of its IT infrastructure in an ever-changing digital landscape.

6 common patch management mistakes

Mistakes in patch management can significantly increase the cybersecurity risk. Awareness and understanding of these pitfalls are as crucial for developing effective mitigation strategies as ongoing staff education.

1. Procrastination in patch application

The gap between the release of a patch and its application is a critical vulnerability window wherein systems are most at risk. Once a CVE is published, threat actors actively scan for unpatched systems, often within hours. The 2017 WannaCry ransomware attack exploited the EternalBlue vulnerability (MS17-010) in unpatched Windows systems. Microsoft had released the patch 59 days earlier. Organizations that delayed paid the price in data loss, downtime, and recovery costs measured in the billions globally. Ensure your systems are updated as soon as a security patch is available by configuring automation workflows that trigger patch deployment as soon as possible to eliminate dangerous exposure windows.

2. Overlooking patch verification

Ensuring patches do not adversely affect system performance or functionality is as crucial as applying them. Skipping this step can result in operational disruptions, such as the infamous case in July 2022, when Rogers Communications, a major Canadian telecom provider, experienced a significant service outage impacting over 12 million users.

This outage disrupted internet and wireless phone services, including essential services like 9-1-1 calls and Interac debit transactions, affecting various sectors across Canada. The cause was attributed to a firmware maintenance patch rollout gone wrong, leading to widespread malfunctioning of users’ routers.

This incident highlights the critical importance of robust patch verification processes to prevent operational disruptions and ensure system functionality.

3. Disregarding pre-patch backups

Before any patch deployment, securing data to recover swiftly from any unforeseen patching error is critical. If you fail to backup critical data, you might turn a minor issue into a major crisis. Leverage backup software to avoid jeopardizing data integrity and business continuity.

4. Irregular patching practices

Consistency in the patching process ensures that systems are protected against discovered vulnerabilities. Irregular patching schedules leave systems exposed to attack. Due to the greater risk of substantial financial and reputational damage, reliable technical information about financial institutions’ breaches tends to be harder to verify than with most such events.

At least one banking institution (JPMorgan Chase, 2014) experienced a data breach due to information about the bank’s internal software stack being leaked, which is speculated to have exposed vulnerabilities in the patching schedules of third-party software, which permitted hackers to access users’ contact information.

5. Flawed patch deployment techniques

A strategic approach to patch deployment involves careful planning, phased rollouts, and thorough testing to ensure minimal disruption and comprehensive coverage. Common pitfalls include rushing deployments without adequate testing or failing to prioritize patches based on risk assessment, leading to security gaps and operational inefficiencies. A reliable patch deployment workflow starts with prioritizing the most critical security vulnerabilities for remediation. You can determine what to focus on first by using CVSS severity scores to determine which patches should be distributed first.

Recognizing and rectifying common patch management errors are pivotal to fortifying an organization’s cybersecurity posture. By systematically addressing these blunders, businesses can significantly reduce their vulnerability to cyberattacks, ensuring that their operations remain resilient and secure.

6. Not utilizing or maximizing automation tools

A comprehensive patch management strategy should also incorporate and maximize Remote Monitoring and Management (RMM) tools that can automate patching processes, thereby minimizing human error and intervention while reducing costs. IT automation allows IT teams to detect missing patches across OS and third-party applications, automate patch approval workflows with configurable rules, and schedule patch deployments. For businesses in tightly regulated industries, using an automated patch management software allows IT teams to generate reports to demonstrate patch compliance for audits like HIPAA and SOC 2.

Strategies for mitigating patching errors

Effective patch management is a multifaceted challenge that requires strategic planning, rigorous processes, and ongoing vigilance. To navigate this complexity, organizations must develop clear policies, leverage advanced automation tools, and ensure continuous training for IT staff. This will streamline the patching process and minimize the risk of oversight or error.

• Timely patch application approaches: It is key to prioritize patches based on the severity of the vulnerabilities they address and the criticality of the affected systems. Automation tools can significantly enhance the timeliness and accuracy of patch deployments, reducing the workload on IT staff and minimizing human error.
• Patch verification procedures: A robust testing process, ideally in a staging environment that mirrors the production environment, is critical for identifying any issues that could impact system performance or stability. This step ensures that patches do not introduce new vulnerabilities or compatibility issues.
• Implementing robust backup measures: Establishing a comprehensive backup strategy is crucial, involving performing regular backups and ensuring that backup data is secure, encrypted, and stored in multiple locations to protect against data loss, corruption, or ransomware attacks.
• Maintaining consistent patching routines: Developing and adhering to a structured patching schedule, informed by a risk-based assessment of the IT infrastructure, ensures that systems remain secure and functional. This includes regular audits of patch management practices to identify and rectify any weaknesses in the process.
• Optimizing patch deployment: It is essential to train and equip IT teams with the tools and knowledge necessary for effective patch management. This includes strategies for minimizing downtime during patch deployment, such as rolling updates or scheduling patches during off-peak hours, and continuous monitoring of systems post-update to quickly address any arising issues.
• Patch rollback planning: Patches can fail even in well-managed environments due to factors such as compatibility conflicts, missing dependencies, and other unexpected issues. Define a rollback plan before every patch deployment. If a patch causes unexpected issues post-deployment, a pre-defined rollback procedure allows technicians to undo faulty patches to minimize downtime.

Adopting these strategies for mitigating patching errors places organizations in a stronger position to combat cybersecurity threats effectively. By establishing clear policies, utilizing advanced automation, and committing to ongoing staff training, businesses can achieve a higher standard of security and operational excellence.

This holistic approach to patch management enhances the security of IT infrastructures and supports the organization’s overall strategic objectives, promoting a culture of continuous improvement and resilience.

Proactive patching: Why you should adopt it

Avoiding common patch management mistakes strengthens IT security and prevents cybercriminals from exploiting vulnerabilities. Implementing a robust patch management process allows you to protect IT frameworks from threats and ensure business continuity. Organizations are encouraged to adopt comprehensive and effective patch management protocols.

Implementing a solution like NinjaOne’s Patch Management software can streamline this process, offering a more efficient, accurate, and timely way to help you manage patches across today’s highly diverse IT environments. By doing so, they can safeguard their IT infrastructures against a wide array of vulnerabilities and threats, ensuring operational continuity, data integrity, and above all, continued customer trust. Sign up for a 14-day free trial.