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Incorrect Default Permissions

CVE-2021-40396

High
8.8/10

Summary

A privilege escalation vulnerability exists in the installation of Advantech DeviceOn/iService 1.1.7. A specially-crafted file can be replaced in the system to escalate privileges to NT SYSTEM authority. An attacker can provide a malicious file to trigger this vulnerability.

  • LOW
  • LOCAL
  • HIGH
  • CHANGED
  • NONE
  • LOW
  • HIGH
  • HIGH

CWE-276 - Incorrect Default Permissions

During installation, installed file permissions are set to allow anyone to modify those files.

References

Advisory Timeline

  • Published