CVE - CVE-2020-35685

CVE-ID
CVE-2020-35685	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
An issue was discovered in HCC Nichestack 3.0. The code that generates Initial Sequence Numbers (ISNs) for TCP connections derives the ISN from an insufficiently random source. As a result, an attacker may be able to determine the ISN of current and future TCP connections and either hijack existing ones or spoof future ones. (Proper ISN generation should aim to follow at least the specifications outlined in RFC 6528.)
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
CERT-VN:VU#608209 URL:https://www.kb.cert.org/vuls/id/608209 CONFIRM:https://cert-portal.siemens.com/productcert/pdf/ssa-789208.pdf MISC:https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/ MISC:https://www.hcc-embedded.com
Assigning CNA
MITRE Corporation
Date Record Created
20201224	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20201224)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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