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Authentication Bypass by Spoofing

CVE-2020-13529

Medium
6.1/10

Summary

An exploitable denial-of-service vulnerability exists in Systemd through version 245. A specially crafted "DHCP FORCERENEW" packet can cause a server running the DHCP client to be vulnerable to a DHCP ACK spoofing attack. An attacker can forge a pair of "FORCERENEW" and "DCHP ACK" packets to reconfigure the server.

  • HIGH
  • ADJACENT_NETWORK
  • NONE
  • CHANGED
  • NONE
  • NONE
  • NONE
  • HIGH

CWE-290 - Authentication Bypass by Spoofing

This attack-focused weakness is caused by improperly implemented authentication schemes that are subject to spoofing attacks.

References

Advisory Timeline

  • Published