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John Rostern
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Profile of John Rostern

CRISC, QSA, VP Technology Audit & Advisory Services, Coalfire
Member Since: 7/29/2014
Author
News & Commentary Posts: 1
Comments: 0

John Rostern has more than 33 years of experience in audit, information security, and technology. His areas of expertise include IT audit, technology risk assessment and management, IT strategic planning, architecture, information security, operations, applications development, telecommunications, networking, datacenter design, and business continuity planning. John is a subject matter expert in the areas of data loss prevention, intrusion detection, encryption, and incident response. He received his Bachelor of Science degree in business administration/finance from Hofstra University. He serves as the chairman for the Long Island Forum Technology (LIFT) and is an active member of the Computer Security Institute, the Information Systems Audit & Control Association, the Institute of Internal Auditors (IIA), the Securities Industry & Financial Markets Association (SIFMA), and the InfraGard-New York Metro chapter.
Articles by John Rostern
News
News
Inside the Ransomware Campaigns Targeting Exchange Servers
Kelly Sheridan, Staff Editor, Dark Reading,  4/2/2021
Commentary
Beyond MITRE ATT&CK: The Case for a New Cyber Kill Chain
Rik Turner, Principal Analyst, Infrastructure Solutions, Omdia,  3/30/2021
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Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2021-3493
PUBLISHED: 2021-04-17
The overlayfs implementation in the linux kernel did not properly validate with respect to user namespaces the setting of file capabilities on files in an underlying file system. Due to the combination of unprivileged user namespaces along with a patch carried in the Ubuntu kernel to allow unprivile...
CVE-2021-3492
PUBLISHED: 2021-04-17
Shiftfs, an out-of-tree stacking file system included in Ubuntu Linux kernels, did not properly handle faults occurring during copy_from_user() correctly. These could lead to either a double-free situation or memory not being freed at all. An attacker could use this to cause a denial of service (ker...
CVE-2020-2509
PUBLISHED: 2021-04-17
A command injection vulnerability has been reported to affect QTS and QuTS hero. If exploited, this vulnerability allows attackers to execute arbitrary commands in a compromised application. We have already fixed this vulnerability in the following versions: QTS 4.5.2.1566 Build 20210202 and later Q...
CVE-2020-36195
PUBLISHED: 2021-04-17
An SQL injection vulnerability has been reported to affect QNAP NAS running Multimedia Console or the Media Streaming add-on. If exploited, the vulnerability allows remote attackers to obtain application information. QNAP has already fixed this vulnerability in the following versions of Multimedia C...
CVE-2021-29445
PUBLISHED: 2021-04-16
jose-node-esm-runtime is an npm package which provides a number of cryptographic functions. In versions prior to 3.11.4 the AES_CBC_HMAC_SHA2 Algorithm (A128CBC-HS256, A192CBC-HS384, A256CBC-HS512) decryption would always execute both HMAC tag verification and CBC decryption, if either failed `JWEDe...