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Authorization bypass through user-controlled key...

High severity Unreviewed Published May 24, 2022 to the GitHub Advisory Database • Updated Apr 28, 2024

Package

No package listed— Suggest a package

Affected versions

Unknown

Patched versions

Unknown

Description

Authorization bypass through user-controlled key vulnerability in MELSEC iQ-R series Safety CPU R08/16/32/120SFCPU all versions and MELSEC iQ-R series SIL2 Process CPU R08/16/32/120PSFCPU all versions allows an remote unauthenticated attacker to login to a target CPU module by obtaining credentials other than password.

References

Published by the National Vulnerability Database Oct 14, 2021
Published to the GitHub Advisory Database May 24, 2022
Last updated Apr 28, 2024

Severity

High
7.5
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weaknesses

CVE ID

CVE-2021-20599

GHSA ID

GHSA-vf46-vqq9-hg36

Source code

No known source code

Dependabot alerts are not supported on this advisory because it does not have a package from a supported ecosystem with an affected and fixed version.

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