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AI Double Agent: Claude Just Got a New Voice
How we went from a compromised Claude account to remote code execution on a victim’s...
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Attackers Don’t Respect Vendor Boundaries
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Exposure Management Used to Be Baggage Claim.
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Understanding the Security Aspects of Linux eBPF
Pentera Team
22 Jun 2022
eBPF is a powerful kernel feature, but small validation flaws can turn it into a direct path to privilege escalation. When unprivileged users can abuse eBPF, a minor bug can quickly become full system compromise. That is why hardening eBPF access, patching kernels promptly, and continuously validating Linux attack paths...
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Mitigating VMware vCenter Information Disclosure
Yuval Lazar
29 Mar 2022
When a vulnerability affects vCenter, the risk extends far beyond one appliance because it can become a control point for the broader virtualized environment. In cases like this, the real danger is the ability to chain information disclosure, privilege escalation, and administrative access into a full ESXi takeover. That is...
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4 Steps to Knowing Your Exploitable Attack Surface
Pentera Team
17 Mar 2022
The real challenge is not the number of vulnerabilities, but knowing which ones attackers can actually turn into a breach. Managing the exploitable attack surface requires taking the adversary’s perspective, validating real attack paths, and focusing remediation on the exposures with the greatest business impact. That is how organizations cut...
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Correcting Common Firewall Misconfigurations
Pentera Team
24 Feb 2022
Misconfigurations are dangerous because they often hide in plain sight, outside the scope of traditional vulnerability scans. Something as simple as an unfiltered closed port or an overly broad whitelist can give attackers a path to command execution or credential theft. That is why organizations need continuous validation to uncover...
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Breaking the barriers of segmentation
Pentera Team
06 Feb 2022
Network segmentation is important, but it should never be mistaken for an impenetrable boundary. Attackers can abuse tunneling techniques and trusted connectivity to flatten segments and move laterally in ways many teams do not anticipate. That is why segmentation must be continuously validated, not just designed and assumed to work.
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Identifying and Mitigating the PwnKit Vulnerability
Pentera Team
02 Feb 2022
PwnKit is a reminder that severity scores alone do not tell you what to fix first. The real question is whether a vulnerability can be chained into meaningful business impact in your environment. Security teams need to validate exploitability and prioritize remediation based on proven exposure, not patch everything blindly.
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Mitigating Log4Shell Exploitation
Pentera Team
14 Dec 2021
Log4Shell showed how a single flaw in a widely used component can create massive exposure across applications, protocols, and environments. The real challenge is not just finding vulnerable instances, but understanding how attackers can exploit them and what business impact that creates. Security teams need continuous validation to prioritize remediation...
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From DHCP Spoofing to EternalBlue: Security Insights
Yuval Lazar
10 Nov 2021
DHCP spoofing can quietly expose hosts to credential theft and lateral movement. By abusing NetBIOS settings, attackers can open risky paths many teams overlook. Strong internal validation helps catch and reduce that exposure.
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Preventing DHCP Spoofing Attacks
Yuval Lazar
03 Nov 2021
DHCP spoofing is dangerous because it abuses a trusted network service to quietly redirect traffic, intercept requests, and force authentication. Once attackers control DHCP responses, they can turn routine network behavior into a path for credential harvesting and man-in-the-middle attacks. That is why validating internal network controls and implementing protections...
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Understanding VMware vCenter Privilege Escalation
Yuval Lazar
30 Sep 2021
Privilege escalation flaws in platforms like vCenter are especially dangerous because they can turn limited access into full control over critical infrastructure. In this case, a low-privileged foothold could be escalated into root access on a system that manages some of the organization’s most sensitive assets. That is why rapid...
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Exploring the PrintNightmare Vulnerability
Pentera Team
09 Sep 2021
PrintNightmare showed how a common Windows service can become a high-impact attack path when exploited for remote code execution and privilege escalation. The real challenge was never just patching—it was understanding where the vulnerability could actually lead inside the environment. Security teams need continuous validation to prioritize exposure based on...
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Understanding Top Exploited Vulnerabilities
Pentera Team
06 Aug 2021
Attackers do not need zero-days to create impact. Known vulnerabilities and common weaknesses are often enough. Security teams need to prioritize what is truly exploitable.
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