CVE-2021-27393

Summary

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.

Affected Software

VendorProductVersion RangeStatus
SiemensNucleus NETAll versionsaffected
SiemensNucleus ReadyStart V3All versions < V2013.08affected
SiemensNucleus Source CodeVersions including affected DNS modulesaffected

Weaknesses

  • CWE-330: CWE-330: Use of Insufficiently Random Values

ADP Enrichment

CVE Program Container

Additional References

References