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CVE-2021-27393

UNKNOWN
Published 2021-04-22T20:42:21
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No CVSS data available

Description

A vulnerability has been identified in Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2013.08), Nucleus Source Code (Versions including affected DNS modules). The DNS client does not properly randomize UDP port numbers of DNS requests. That could allow an attacker to poison the DNS cache or spoof DNS resolving.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Siemens

Nucleus NET

Affected Versions:

All versions
Siemens

Nucleus ReadyStart V3

Affected Versions:

All versions < V2013.08
Siemens

Nucleus Source Code

Affected Versions:

Versions including affected DNS modules

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed MODERATE

GHSA-x7x4-r59j-h6w9

Advisory Details

A vulnerability has been identified in Nucleus NET (All versions), Nucleus RTOS (versions including affected DNS modules), Nucleus ReadyStart (All versions < V2013.08), Nucleus Source Code (versions including affected DNS modules), VSTAR (versions including affected DNS modules). The DNS client does not properly randomize UDP port numbers of DNS requests. That could allow an attacker to poison the DNS cache or spoof DNS resolving.

CVSS Scoring

CVSS Score

5.0

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2021-27393
WEB https://cert-portal.siemens.com/productcert/pdf/ssa-201384.pdf

Advisory provided by GitHub Security Advisory Database. Published: May 24, 2022, Modified: May 24, 2022

References

https://cert-portal.siemens.com/productcert/pdf/ssa-201384.pdf
Published: 2021-04-22T20:42:21
Last Modified: 2024-08-03T20:48:16.739Z
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