SIEM in computer science: history
A SIEM solution in IT is one of the essential components of a SOC (Security Operation Center). Its task is to collect information and analyze it in search of anomalies and possible breaches in the system. But the defense process hasn’t always been that simple. What we now call SIEM, Security Information and Event Management, is the union of two different types of cyber security tools.
SIM and SEM: the origins
Before the arrival of a complete SIEM solution in computing, security was heavily focused on perimeter security and did not keep the internal network adequately controlled. The first solutions developed in the 90s were basic and basically dealt with security information management (SIM) or security event management (SEM). They were solutions available as tools that had to be deployed on-site in the data center to be protected. This limited scalability, because adding capacity required the purchase of additional equipment.
These early solutions were also built on proprietary databases that forced customers to use technology from a single vendor. If you wanted to move your data to another system, the process was long and complicated. It should also be noted that archiving was more expensive, so only the most valuable data was collected. Furthermore, although the SIM and SEM solutions contained all the data necessary for the defense, the search and alarm were rudimentary. Additionally, they depended on experienced security analysts to research, understand and interpret what they found in the data.
SIEM origins in computer science
As data became more sensitive and technology more powerful, SIEM systems (SIM + SEM) became capable of ingesting, processing and storing a great deal of data. Next-generation SIEM IT solutions are able to use signature-based alerts to identify threats in collected data. However, only those alerts that have identified indicators of compromise (IOC) of a certain threat can be identified in this way.
To be clear, if the type of attack to which a system is subjected has not been cataloged in a series of IOCs, a first generation SIEM is not able to detect it. The main drawback of those systems was the very limited ability to detect unknown cyber threats.
To give a practical example: it was possible to use a rule like this: “give a warning if a user enters 10 consecutive wrong passwords“. In theory this could be used to detect brute force password attacks. But what if the attacker only tried 9 passwords in a row? Or what if the alarm was given for a very forgetful user?
Next Gen SIEM (NGS)
A next generation SIEM is built on a large data platform that provides unlimited scalability and is hosted in the cloud. A next gen SIEM includes log management, advanced threat detection based on behavior analysis and automatic incident response, all on a single platform.
This eliminates the problems that old on-premises systems were prone to. Not having to install anything and being able to send the necessary data to the cloud quite simply, the computing power of the local machine is not compromised and the SIEM can manage all the data safely.
How a SIEM proceeds in cyber threat analysis
1. Data Collection: An IT SIEM solution collects data from across the organization using agents installed on various devices, including endpoints, servers, network equipment and other security solutions. Next generation SIEM includes support for cloud applications and infrastructure, business applications, identity data and non-technical data feeds.
2. Data enrichment: Enrichment adds further context to events. SIEM will enrich data with identity, resources, geolocation and threat information.
3. Data storage: The data will then be stored in a database so that it can be searched for during investigations. The next generation SIEM exploits open source architectures and big data architectures, exploiting their scalability.
4. Correlation and Analysis: SIEM solutions use several techniques to draw actionable conclusions from SIEM data. These techniques vary greatly.
5. Report: A SIEM, particularly a next generation SIEM, gives you the ability to quickly search for data, allowing you to dig through alerts and search for threat actors and indicators of compromise. The displayed data can be saved or exported. It is also possible to use out-of-the-box reports or create ad hoc reports as needed.
What a SIEM is used for
Threat hunting and investigation
The ability to perform threat hunting on a SIEM is critical to understanding the true patterns of attacks based on access, activity and data breaches. By developing a detailed and contextual view of attacks, security analysts can more easily develop policies, countermeasures and incident response processes to help mitigate and remove the threat.
Response in case of an accident
An effective response to incidents is essential to intervene more quickly and reduce the residence time of the threat. For this, a SIEM provides an incident response playbook with configurable automated actions. A SIEM is able to integrate with third party solutions for security orchestration (SOAR) or individual case management.
Defense against insider threats
The reason why insider threats are such a big problem is because it’s not about entering the perimeter, but about exploiting insider positions. They can be your employees, contractors or business associates. It may be they themselves wanting to exploit their location, or their account may have been hacked.
With all kinds of internal threats, the attacker tries to stay hidden, gathering sensitive data to exploit. This could cause significant damage to the company, its position in the industry and its relationship with consumers or investors. By using a SIEM, you avoid this risk.
Cyber threat detection
Your organization is likely to have at least one sensitive data repository. Cybercriminals thrive on looting this data for financial gain. Many breaches begin with a simple phishing email against an organization’s target. Simply clicking on an attachment can leave malicious code behind. A SIEM will allow you to monitor advanced cyberthreat patterns such as phishing, beaconing and lateral movement.
For many industries, adherence to compliance standards is critical. A SIEM can help by providing reports focused on data compliance requests. Integrated packages covering all major mandates, including PCI DSS, SOX, and ISO 27001, are a standard feature of SIEMs as well.
Next Generation SIEM
A next generation SIEM is not just a cloud hosted system. It also makes use of the implementation of AI and Machine Learning to increase the defense of the IT system.
We will see it in a future article, but it is right to specify that the SOCaaS offered by SOD makes use of the latest generation technology offered by Next Gen. SIEM systems. Contact us to find out more about it and talk to experts who can dispel all your doubts.
- What is it for? Hadoop Security Data Lake (SDL)
- Secure Online Desktop achieves ISO 27001: the security certification for managed services
- SOCaaS and Active Defense Deception Webinar – Guide to the next cybersecurity online event
- Auditing IT della sicurezza: guida completa all’analisi proattiva di vulnerabilità e conformità
- CIS Controls and Vulnerability Assessment: practical guide to adopting best practices
- Kerberoasting: a threat to cybersecurity and how to mitigate it with Security Posture analysis
- Protect Your Business: Antivirus vs. SOC Service with EDR and Next Generation Antivirus (NGA)
- CSIRT and SOC: Differences between incident management and security monitoring
- Backup as a Service (17)
- Cloud Conference (3)
- Cloud CRM (1)
- Cloud Server/VPS (22)
- Conferenza Cloud (4)
- ICT Monitoring (5)
- Log Management (2)
- News (23)
- ownCloud (4)
- Privacy (7)
- Secure Online Desktop (14)
- Security (190)
- Web Hosting (15)
- Interpol Arrests Smuggler With New Biometric Screening Database December 1, 2023Interpol has upgraded its biometric background check tech. It'll help catch criminals, but will it protect sensitive, immutable data belonging to the innocent?
- The European Space Agency Explores Cybersecurity for Space Industry December 1, 2023An ESA cybersecurity expert explains how space-based data and services benefit from public investment in space programs.
- The Latest Delinea Secret Server Release Boosts Usability With New Features December 1, 2023
- Flow Security Launches GenAI DLP December 1, 2023
- North Korea APT Slapped With Cyber Sanctions After Satellite Launch December 1, 2023Sanctions on Kimsuky/APT43 focuses the world on disrupting DPRK regime's sprawling cybercrime operations, expert says.
- Critical 'LogoFAIL' Bugs Offer Secure Boot Bypass for Millions of PCs December 1, 2023Hundreds of consumer and enterprise-grade x86 and ARM models from various vendors, including Intel, Acer, and Lenovo, are potentially vulnerable to bootkits and takeover.
- Japan's Space Program at Risk After Microsoft Active Directory Breach December 1, 2023The agency, known as JAXA, has shut down parts of its network as it conducts an investigation to discover the scope and impact of the breach.
- Emirates CISOs Flag Rampant Cybersecurity Gaps December 1, 2023UAE security leaders warn that people, tech, and process gaps are exposing their organizations to cybercrime.
- Saudi Companies Outsource Cybersecurity Amid 'Serious' Incidents December 1, 2023Saudi companies are seeking extra help in droves, because of a lack of tools and personnel.
- The US Needs to Follow Germany's Attack-Detection Mandate December 1, 2023A more proactive approach to fighting cyberattacks for US companies and agencies is shaping up under the CISA's proposal to emphasize real-time attack detection and response.
- SEC Consult SA-20231123 :: Uninstall Key Caching in Fortra Digital Guardian Agent Uninstaller November 27, 2023Posted by SEC Consult Vulnerability Lab, Research via Fulldisclosure on Nov 27SEC Consult Vulnerability Lab Security Advisory < 20231123-0 > ======================================================================= title: Uninstall Key Caching product: Fortra Digital Guardian Agent Uninstaller (Data Loss Prevention) vulnerable version: Agent:
- SEC Consult SA-20231122 :: Multiple Vulnerabilities in m-privacy TightGate-Pro November 27, 2023Posted by SEC Consult Vulnerability Lab, Research via Fulldisclosure on Nov 27SEC Consult Vulnerability Lab Security Advisory < 20231122-0 > ======================================================================= title: Multiple Vulnerabilities product: m-privacy TightGate-Pro vulnerable version: Rolling Release, servers with the following package versions are vulnerable: tightgatevnc < 4.1.2~1 rsbac-policy-tgpro
- Senec Inverters Home V1, V2, V3 Home & Hybrid Use of Hard-coded Credentials - CVE-2023-39169 November 27, 2023Posted by Phos4Me via Fulldisclosure on Nov 27Sent through the Full Disclosure mailing list https://nmap.org/mailman/listinfo/fulldisclosure Web Archives & RSS: https://seclists.org/fulldisclosure/
- [SYSS-2023-019] SmartNode SN200 - Unauthenticated OS Command Injection November 27, 2023Posted by Maurizio Ruchay via Fulldisclosure on Nov 27Advisory ID: SYSS-2023-019 Product: SmartNode SN200 Analog Telephone Adapter (ATA) & VoIP Gateway Manufacturer: Patton LLC Affected Version(s):
- CVE-2023-46307 November 27, 2023Posted by Kevin on Nov 27running on the remote port specified during setup
- CVE-2023-46307 November 27, 2023Posted by Kevin on Nov 27While conducting a penetration test for a client, they were running an application called etc-browser which is a public GitHub project with a Docker container. While fuzzing the web server spun up with etcd-browser (which can run on any arbitrary port), the application had a Directory Traversal vulnerability that is […]
- Survey on usage of security advisories November 27, 2023Posted by Aurich, Janik on Nov 27Dear list members, we are looking for voluntary participants for our survey, which was developed in the context of a master thesis at the University of Erlangen-Nuremberg. The goal of the survey is to determine potential difficulties that may occur when dealing with security advisories. The focus of the […]
- [CVE-2023-46386, CVE-2023-46387, CVE-2023-46388, CVE-2023-46389] Multiple vulnerabilities in Loytec products (3) November 27, 2023Posted by Chizuru Toyama on Nov 27[+] CVE : CVE-2023-46386, CVE-2023-46387, CVE-2023-46388, CVE-2023-46389 [+] Title : Multiple vulnerabilities in Loytec L-INX Automation Servers [+] Vendor : LOYTEC electronics GmbH [+] Affected Product(s) : LINX-151, Firmware 7.2.4, LINX-212, firmware 6.2.4 [+] Affected Components : L-INX Automation Servers [+] Discovery Date :...
- [CVE-2023-46383, CVE-2023-46384, CVE-2023-46385] Multiple vulnerabilities in Loytec products (2) November 27, 2023Posted by Chizuru Toyama on Nov 27[+] CVE : CVE-2023-46383, CVE-2023-46384, CVE-2023-46385 [+] Title : Multiple vulnerabilities in Loytec LINX Configurator [+] Vendor : LOYTEC electronics GmbH [+] Affected Product(s) : LINX Configurator 7.4.10 [+] Affected Components : LINX Configurator [+] Discovery Date : 01-Sep-2021 [+] Publication date : 03-Nov-2023 [+]...
- Senec Inverters Home V1, V2, V3 Home & Hybrid Exposure of the Username to an Unauthorized Actor - CVE-2023-39168 November 12, 2023Posted by Phos4Me via Fulldisclosure on Nov 12Sent through the Full Disclosure mailing list https://nmap.org/mailman/listinfo/fulldisclosure Web Archives & RSS: https://seclists.org/fulldisclosure/
Estimated reading time: 6 minutes L'impatto crescente delle minacce informatiche, su sistemi operativi privati op… https://t.co/FimxTS4o9G
Estimated reading time: 6 minutes The growing impact of cyber threats, on private or corporate operating systems… https://t.co/y6G6RYA9n1
Tempo di lettura stimato: 6 minuti Today we are talking about the CTI update of our services. Data security is… https://t.co/YAZkn7iFqa
Estimated reading time: 6 minutes Il tema della sicurezza delle informazioni è di grande attualità in questo peri… https://t.co/tfve5Kzr09
Estimated reading time: 6 minutes The issue of information security is very topical in this historical period ch… https://t.co/TP8gvdRcrF