// For flags

CVE-2021-31228

 

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

Se ha detectado un problema en HCC embedded InterNiche versión 4.0.1. Esta vulnerabilidad permite al atacante predecir el puerto de origen de una consulta DNS para enviar paquetes de respuesta DNS falsos que serán aceptados como respuestas válidas a las peticiones del cliente DNS (sin olfatear la petición específica). Los datos son predecibles porque son basados en la hora del día y presentan muy pocos bits.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-04-15 CVE Reserved
  • 2021-08-19 CVE Published
  • 2024-05-04 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-330: Use of Insufficiently Random Values
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Hcc-embedded
Search vendor "Hcc-embedded"
Nichestack
Search vendor "Hcc-embedded" for product "Nichestack"
< 4.3
Search vendor "Hcc-embedded" for product "Nichestack" and version " < 4.3"
-
Affected