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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
For Cybersecurity to Be Proactive, Terrains Must Be Mapped
Craig Harber, Chief Technology Officer at Fidelis Cybersecurity,  10/8/2019
A Realistic Threat Model for the Masses
Lysa Myers, Security Researcher, ESET,  10/9/2019
USB Drive Security Still Lags
Dark Reading Staff 10/9/2019
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CVE-2019-17537
PUBLISHED: 2019-10-13
Jiangnan Online Judge (aka jnoj) 0.8.0 has Directory Traversal for file deletion via the web/polygon/problem/deletefile?id=1&name=../ substring.
CVE-2019-17538
PUBLISHED: 2019-10-13
Jiangnan Online Judge (aka jnoj) 0.8.0 has Directory Traversal for file reading via the web/polygon/problem/viewfile?id=1&name=../ substring.
CVE-2019-17535
PUBLISHED: 2019-10-13
Gila CMS through 1.11.4 allows blog-list.php XSS, in both the gila-blog and gila-mag themes, via the search parameter, a related issue to CVE-2019-9647.
CVE-2019-17536
PUBLISHED: 2019-10-13
Gila CMS through 1.11.4 allows Unrestricted Upload of a File with a Dangerous Type via the moveAction function in core/controllers/fm.php. The attacker needs to use admin/media_upload and fm/move.
CVE-2019-17533
PUBLISHED: 2019-10-13
Mat_VarReadNextInfo4 in mat4.c in MATIO 1.5.17 omits a certain '\0' character, leading to a heap-based buffer over-read in strdup_vprintf when uninitialized memory is accessed.