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 John Strand
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Profile of John Strand

SANS Senior Instructor & Owner, Black Hills Information Security
News & Commentary Posts: 3

John Strand is a senior instructor with the SANS Institute. He teaches SEC504: Hacker Techniques, Exploits, and Incident Handling; SEC560: Network Penetration Testing and Ethical Hacking; SEC580: Metasploit Kung Fu for Enterprise Pen Testing; and SEC464: Hacker Guard: Security Baseline Training for IT Administrators and Operations with Continuing Education. John is the course co-author of SANS 504: Hacker Techniques, Exploits, and Incident Handling.

When not teaching for SANS, John co-hosts Security Weekly, the world's largest computer security podcast. He is the owner of Black Hills Information Security, specializing in penetration testing and security architecture services. He is also the author of Offensive Countermeasures: The Art of Active Defense. He has presented for the FBI, NASA, the NSA, and at DefCon. In his spare time he writes loud rock music and makes various futile attempts at fly-fishing

John Strand is a senior instructor with the SANS Institute and course author of the SANS SEC550: Active Defense, Offensive Countermeasures and Cyber Deception course (Bryce Galbraith is the lead instructor for SEC550).

Articles by John Strand
posted in November 2015
97% of Americans Can't Ace a Basic Security Test
Steve Zurier, Contributing Writer,  5/20/2019
TeamViewer Admits Breach from 2016
Dark Reading Staff 5/20/2019
How a Manufacturing Firm Recovered from a Devastating Ransomware Attack
Kelly Jackson Higgins, Executive Editor at Dark Reading,  5/20/2019
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CVE-2019-11873
PUBLISHED: 2019-05-23
wolfSSL 4.0.0 has a Buffer Overflow in DoPreSharedKeys in tls13.c when a current identity size is greater than a client identity size. An attacker sends a crafted hello client packet over the network to a TLSv1.3 wolfSSL server. The length fields of the packet: record length, client hello length, to...
CVE-2019-12295
PUBLISHED: 2019-05-23
In Wireshark 3.0.0 to 3.0.1, 2.6.0 to 2.6.8, and 2.4.0 to 2.4.14, the dissection engine could crash. This was addressed in epan/packet.c by restricting the number of layers and consequently limiting recursion.
CVE-2019-12293
PUBLISHED: 2019-05-23
In Poppler through 0.76.1, there is a heap-based buffer over-read in JPXStream::init in JPEG2000Stream.cc via data with inconsistent heights or widths.
CVE-2018-7201
PUBLISHED: 2019-05-22
CSV Injection was discovered in ProjectSend before r1053, affecting victims who import the data into Microsoft Excel.
CVE-2018-7803
PUBLISHED: 2019-05-22
A CWE-754 Improper Check for Unusual or Exceptional Conditions vulnerability exists in Triconex TriStation Emulator V1.2.0, which could cause the emulator to crash when sending a specially crafted packet. The emulator is used infrequently for application logic testing. It is susceptible to an attack...