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cve[email protected]CVE-2021-32926
HistoryJun 03, 2021 - 1:15 p.m.

CVE-2021-32926

2021-06-0313:15:07
CWE-300
web.nvd.nist.gov
27
8
vulnerability
authenticated
password change
intercept
denial-of-service

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.4 High

AI Score

Confidence

High

0.004 Low

EPSS

Percentile

72.5%

When an authenticated password change request takes place, this vulnerability could allow the attacker to intercept the message that includes the legitimate, new password hash and replace it with an illegitimate hash. The user would no longer be able to authenticate to the controller (Micro800: All versions, MicroLogix 1400: Version 21 and later) causing a denial-of-service condition

Affected configurations

NVD
Node
rockwellautomationmicro800_firmware
AND
rockwellautomationmicro800Match-
Node
rockwellautomationmicrologix_1400_firmwareRange21.0
AND
rockwellautomationmicrologix_1400Match-

CNA Affected

[
  {
    "product": "Micro800, MicroLogix 1400",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "Micro800: All versions, MicroLogix 1400: Version 21 and later when Enhanced Password Security enabled."
      }
    ]
  }
]

Social References

More

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.4 High

AI Score

Confidence

High

0.004 Low

EPSS

Percentile

72.5%

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