Use of Insufficiently Random Values Affecting oryx-embedded/cyclonetcp package, versions [,2.0.0)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.18% (41st percentile)

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  • Snyk IDSNYK-UNMANAGED-ORYXEMBEDDEDCYCLONETCP-5961603
  • published12 Oct 2023
  • disclosed10 Oct 2023
  • creditUnknown

Introduced: 10 Oct 2023

CVE-2020-27631  (opens in a new tab)
CWE-330  (opens in a new tab)

How to fix?

Upgrade oryx-embedded/cyclonetcp to version 2.0.0 or higher.

Overview

Affected versions of this package are vulnerable to Use of Insufficiently Random Values due to the TCP ISNs generation process. An attacker can predict the sequence numbers and hijack the TCP sessions by exploiting the weak randomness of the ISNs.

CVSS Base Scores

version 3.1