Attack Surface | Breaking Cybersecurity News | The Hacker News

In the era of digitization and ever-changing business needs, the production environment has become a living organism. Multiple functions and teams within an organization can ultimately impact the way an attacker sees the organization's assets, or in other words, the external attack surface. This dramatically increases the need to define an exposure management strategy. To keep up with business needs while effectively assessing and managing cybersecurity risk, there are two primary elements that organizations should consider regarding their external attack surface: its  size  and its  attractiveness to attackers . While organizations are typically focused on accounting for the size of their attack surface, its attractiveness is not typically top of mind, though it may have a significant impact on risk. Attack Surface Size How many assets are accessible from the outside world?  There is a delicate balance between business needs and security. While there are good r...

The wide-ranging adoption of cloud facilities and the subsequent mushrooming of organizations' networks, combined with the recent migration to remote work, had the direct consequence of a massive expansion of organizations' attack surface and led to a growing number of blind spots in connected architectures. The unforeseen  results of this expanded and attack surface  with fragmented monitoring has been a marked increase in the number of successful cyber-attacks, most notoriously, ransomware, but covering a range of other types of attacks as well. The main issues are unmonitored blind spots used by cyber-attackers to breach organizations' infrastructure and escalate their attack or move laterally, seeking valuable information.  The problem lies in discovery. Most organizations have evolved faster than their ability to keep track of all the moving parts involved and to catch up to catalog all past and present assets is often viewed as a complex and resource-heavy task w...

As a CISO, one of the most challenging questions to answer is "How well are we protected right now?" Between the acceleration of hackers' offensive capabilities and the dynamic nature of information networks, a drift in the security posture is unavoidable and needs to be continuously compensated. Therefore, answering that question implies continuously validating the security posture and being in a position to check it including, against the latest emerging threats. Yet, the bulk of cybersecurity is focused on defensive tools. The combination of the rapid evolution of technology and the multiplication of technology layers, combined with the professionalization of the threat landscape, has led to a profusion of cybersecurity tools tackling different security aspects. Checking the cybersecurity solution stack efficiency is typically done through pen-testing or, more recently, through red teaming – an exercise aimed to map possible loopholes that would lead to a data breac...

If you invite guest users into your Entra ID tenant, you may be opening yourself up to a surprising risk.  A gap in access control in Microsoft Entra's subscription handling is allowing guest users to create and transfer subscriptions into the tenant they are invited into, while maintaining full ownership of them.  All the guest user needs are the permissions to create subscriptions in their home tenant, and an invitation as a guest user into an external tenant. Once inside, the guest user can create subscriptions in their home tenant, transfer them into the external tenant, and retain full ownership rights. This stealthy privilege escalation tactic allows a guest user to gain a privileged foothold in an environment where they should only have limited access. Many organizations treat guest accounts as low-risk based on their temporary, limited access, but this behavior, which works as designed, opens the door to known attack paths and lateral movement within the resource t...