En esta sección se ofrecen contenidos de interés para los profesionales que participan en la investigación de vulnerabilidades, análisis de amenazas y eventos de ciberseguridad, forense digital, hacking ético o pentesting, investigador del fraude o analista de ciberinteligencia.

Aurora vulnerability: origin, explanation and solutions

Posted on 26/09/2019, by
INCIBE (INCIBE)
Aurora_ICS
Perhaps, given the many important cybersecurity leaks and intrusions in recent years involving everything from social media accounts to critical infrastructure and classified military secrets, the attention paid to the Aurora vulnerability has not been proportional to its seriousness and systems affected. This is because it affects almost every electrical system in the world, and potentially any rotating equipment, whether it generates energy or is essential for an industrial or commercial installation. If the threat is so widespread, why isn’t the industry more worried and actively looking for solutions? From this article various possible reasons for this are given.

Measuring the severity of vulnerabilities: changes in CVSS 3.1

Posted on 01/08/2019, by
Hugo Rodríguez Santos (INCIBE)
CVSS3.1
The open and most-widely-used framework for communication and vulnerability scoring, the CVSS (Common Vulnerability Scoring System), has been updated, incorporating improvements in its new version 3.1 with respect to the previous one. This standard assesses the severity of computer systems vulnerabilities and assigns them a score of 0 to 10.

Industrial CVSS: alternative calculations for different needs

Posted on 23/07/2019, by
INCIBE (INCIBE)
CVSS_SCI
Over time, different communities of experts related to the world of industrial cybersecurity have realised the challenge of calculating the CVSS (Common Vulnerability Score System) for vulnerabilities in industrial environments. This article aims to show the alternatives proposed by experts, such as RSS-MD, TEMSL and IVSS in order to correctly calculate their severity in the industrial environment.
Etiquetas

Protect your DNS requests with DNS over TLS

Posted on 04/07/2019, by
Ignacio Porro Sáez (INCIBE)
Protect
Security breaches that put our privacy at risk, leaks of our data, passwords... are incidents that happen more and more often. Protecting ourselves from these information leaks is often beyond our reach, but this does not mean that we should not try to take measures to protect our data. DNS-over-TLS can be very helpful in encrypting our communications, making them much more secure.

Mitigating availability problems in the industry

Posted on 19/07/2018, by
INCIBE (INCIBE)
Problems in the industry
Given that availability is always a critical point to take into account for within industrial environments, it is necessary to prevent the attacks that denial of services cause and that affect these environments. The means of giving way to a denial of service can be diverse, much like the means of mitigating these problems. This article will review all of these points, as well as the way in which the risks derived from these attacks can be reduced.

Monitoring Networks and Events in SCIs: more Information, more Security

Posted on 28/06/2018, by
INCIBE (INCIBE)
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Advances in security within control systems have brought us many of the security tools and services offered in IT for this environment. Until now, protection was based on reactive measures, acting only where there was evidence of the attack, but this trend changed with deployment of monitoring and the proactive defensive actions that this can provide.

Protective measures against denial-of-service (DoS) attacks

Posted on 26/01/2018, by
Alejandro Fernández Castrillo
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Denial-of-service attacks are a type of cyber-attack which consists on reducing or cancelling altogether the capacity of servers or other computing resources to provide service. A denial-of-service attack can occur in different scenarios, such as overloading online services by mass request sending or exploiting vulnerabilities of programs or services in order to suspend function totally or partially. In most of such attacks, attackers use a wide range of techniques and tools to hide their identities, which makes it especially challenging to find the culprits.