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BLUF Should security testing (vulnerability scanning, web app pentesting, etc.) be performed through a full protection stack (firewall, IPS, WAF, email filter, etc.), or should the tester’s IP be whitelisted? Bottom line: You are highly encouraged to whitelist the tester’s IP address from any active interference in your protection system(s). The faster we can identify […]

Here are my disclosure processes and guidelines. This is for those discoveries which seem to just fall in my lap while causally using and/or seeing a product. My disclosure process is an attempt to do the right thing when this happens. Note: NDA-protected discoveries (ex. through a client engagement) would not be subject to this. My […]

After struggling for many hours to get macOS (High Sierra) running in a VM (Virtualbox) on a Linux host (Ubuntu/Mint), I finally succeeded.  Although there were dozens of really good tutorials on the topic, none of them were a 100% solution to my specific situation. Here’s what I did to get it working. Notes: Step […]

I was able to find and join several random @SkypeBusiness meetings today… Step #1: Discover Companies Using Skype intitle:”Skype for Business Web App” “Skype for Business Web App” Step #2: Find Usernames inurl:http://example.com intitle:”skype|lync” Step #3: Bruteforce Meeting IDs Bruteforce meeting IDs to find meetings to join.  Exploit is not being released at this time. […]

On 16 June 2018, David and I presented “Zero to Hero – A Red Team’s Journey” at BSides SATX. Here are links to the slide deck, audience handout, and video recording. Slides and handout: https://drive.google.com/drive/folders/12nsWBaqhgukMEn4MwKXsv2LwQF3kmD2U Video recording: https://youtu.be/lF4uOKjQyuk

On 23 March 2018, David and I presented “Zero to Hero – Building a Red Team, One Step at a Time” at HackWest in Salt Lake City. Here are links to the slide deck, audience handout, and video recording. Slides and handout: https://drive.google.com/open?id=1daaIUFEQLSesZ34ar_YbJS0a6u91JtxM Video recording: https://youtu.be/LLdaM0afKUU

Almost one-half of email providers, some of them leading providers, are vulnerable to an email/username verification attack with no apparent mitigating controls. This is my attack code and research. Pre-Req I’m not going to spend a ton of time explaining things to the nth degree. If things alluded to here don’t make sense to you, […]

I have all of your PII (Personally Identifiable Information) from your voter registration. One caveat, I only did so for one of the US Congressional Districts in Texas, but I could have just as easily obtained all voter records. This article is about what it took to obtain records and the implications. Background Recently, I […]

What if one could do more than just bypass a sandbox (easy), but actually exploit the sandbox to gain access to custom signatures, client lists, and other customers’ files? It may be easier than you think. Here’s details showing how we exploited some of the leading sandboxes in the industry. Proofpoint TAP – Background Nearly […]

Is it acceptable for a male to walk up to a female coworker and say, “You’ve got a booty like a Cadillac”? What about singing, to the same co-worker, “Come to the back seat of my car and I’ll let you have it”? I think most would agree these would not be acceptable. How is […]