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CVE-2021-31228

NVDCIRCLENISA

EUVD-2021-18141 · Published Aug 19, 2021

An issue was discovered in HCC embedded InterNiche 4.0.1. This vulnerability allows the attacker to predict a DNS query's source port in order to send forged DNS response packets that will be accepted as valid answers to the DNS client's requests (without sniffing the specific request). Data is predictable because it is based on the time of day, and has too few bits.

Technologies

Hcc-Embedded Nichestack

Weaknesses

CWE-330

CVSS scores

  • v3.17.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
  • v2.05.0AV:N/AC:L/Au:N/C:N/I:P/A:N

MITRE ATT&CK

Inferred

Where this vulnerability fits in an attack

Initial Access Credential Access

References

Potentially impacted assets

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