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Small Space of Random Values

CVE-2020-7566

High
7.3/10

Summary

A CWE-334: Small Space of Random Values vulnerability exists in Modicon M221 (all references, all versions) that could allow the attacker to break the encryption keys when the attacker has captured the traffic between EcoStruxure Machine - Basic software and Modicon M221 controller.

  • LOW
  • ADJACENT_NETWORK
  • HIGH
  • UNCHANGED
  • REQUIRED
  • NONE
  • HIGH
  • NONE

CWE-334 - Small Space of Random Values

The number of possible random values is smaller than needed by the product, making it more susceptible to brute force attacks.

References

Advisory Timeline

  • Published