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.)
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Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2021-08-19T11:21:08
Updated: 2024-08-04T17:09:14.933Z
Reserved: 2020-12-24T00:00:00
Link: CVE-2020-35685
Vulnrichment
No data.
NVD
Status : Modified
Published: 2021-08-19T12:15:08.217
Modified: 2024-11-21T05:27:50.993
Link: CVE-2020-35685
Redhat
No data.