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Automated OSINT with Scumblr

Automated OSINT with Scumblr

We all know that open source intelligence gathering can be quite time consuming, but the information found is sometimes invaluable so it’s…
Go to the profile of Gary Hoffman
Gary Hoffman
CTF walkthrough : VulnHub “RickdiculouslyEasy”

CTF walkthrough : VulnHub “RickdiculouslyEasy”

This blog will be a run through of the beginner level CTF challenge, “RickdiculouslyEasy” image on VulnHub available at:
Go to the profile of Gary Hoffman
Gary Hoffman
My first CTF challenge — VulnHub Necromancer

My first CTF challenge — VulnHub Necromancer

This blog will be a run through of my first ever CTF challenge which was the Necromancer on VulnHub available at —…
Go to the profile of Gary Hoffman
Gary Hoffman
Self-Study SANS SEC503 GCIA

Self-Study SANS SEC503 GCIA

So, I’ve recently passed the GIAC Intrusion Analyst (GCIA) exam after 7 months of hard self-study as I was unable to attend a SANS SEC503…
Go to the profile of Gary Hoffman
Gary Hoffman
Exploiting Cisco HSRP

Exploiting Cisco HSRP

HSRP provides redundancy for IP networks ensuring that traffic can transparently recover from first hop failures. Devices which share a…
Go to the profile of Gary Hoffman
Gary Hoffman
VLAN Hopping Vulnerability

VLAN Hopping Vulnerability

VLAN hopping is a vulnerability that can be leveraged by an attacker to gain access to networked resources on another virtual LAN (VLAN)…
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Gary Hoffman
Malicious IP Fragmentation

Malicious IP Fragmentation

If you read my previous blog article on IP Fragmentation, you should be fully versed on what it is and how it works. Although fragmentation…
Go to the profile of Gary Hoffman
Gary Hoffman
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