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IcscertCVE-2020-6988

HistoryMar 16, 2020 - 4:15 p.m.

CVE-2020-6988

2020-03-1616:15:14

CWE-603

CWE-287

icscert

web.nvd.nist.gov

cve-2020-6988

rockwell automation

micrologix

rslogix 500

controller security

authentication bypass

information disclosure

credentials leakage

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

7.7

Confidence

High

EPSS

0.001

Percentile

46.8%

JSON

Rockwell Automation MicroLogix 1400 Controllers Series B v21.001 and prior, Series A, all versions, MicroLogix 1100 Controller, all versions, RSLogix 500 Software v12.001 and prior, A remote, unauthenticated attacker can send a request from the RSLogix 500 software to the victim’s MicroLogix controller. The controller will then respond to the client with used password values to authenticate the user on the client-side. This method of authentication may allow an attacker to bypass authentication altogether, disclose sensitive information, or leak credentials.

Affected configurations

Nvd

Node

rockwellautomationmicrologix_1400_a_firmware

rockwellautomationmicrologix_1400_b_firmwareRange≤21.001

AND

rockwellautomationmicrologix_1400Match-

Node

rockwellautomationmicrologix_1100_firmware

AND

rockwellautomationmicrologix_1100Match-

Node

rockwellautomationrslogix_500Range≤12.001

VendorProductVersionCPE
rockwellautomationmicrologix_1400_a_firmware*cpe:2.3:o:rockwellautomation:micrologix_1400_a_firmware:*:*:*:*:*:*:*:*
rockwellautomationmicrologix_1400_b_firmware*cpe:2.3:o:rockwellautomation:micrologix_1400_b_firmware:*:*:*:*:*:*:*:*
rockwellautomationmicrologix_1400-cpe:2.3:h:rockwellautomation:micrologix_1400:-:*:*:*:*:*:*:*
rockwellautomationmicrologix_1100_firmware*cpe:2.3:o:rockwellautomation:micrologix_1100_firmware:*:*:*:*:*:*:*:*
rockwellautomationmicrologix_1100-cpe:2.3:h:rockwellautomation:micrologix_1100:-:*:*:*:*:*:*:*
rockwellautomationrslogix_500*cpe:2.3:a:rockwellautomation:rslogix_500:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
rockwellautomation	micrologix_1400_a_firmware	*	cpe:2.3:o:rockwellautomation:micrologix_1400_a_firmware::::::::
rockwellautomation	micrologix_1400_b_firmware	*	cpe:2.3:o:rockwellautomation:micrologix_1400_b_firmware::::::::
rockwellautomation	micrologix_1400	-	cpe:2.3:h:rockwellautomation:micrologix_1400:-:::::::*
rockwellautomation	micrologix_1100_firmware	*	cpe:2.3:o:rockwellautomation:micrologix_1100_firmware::::::::
rockwellautomation	micrologix_1100	-	cpe:2.3:h:rockwellautomation:micrologix_1100:-:::::::*
rockwellautomation	rslogix_500	*	cpe:2.3:a:rockwellautomation:rslogix_500::::::::

CNA Affected

[
  {
    "product": "Rockwell Automation MicroLogix 1400 Controllers Series B v21.001 and prior, Series A, all versions, MicroLogix 1100 Controller, all versions, RSLogix 500 Software v12.001 and prior",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "Rockwell Automation MicroLogix 1400 Controllers Series B v21.001 and prior, Series A, all versions, MicroLogix 1100 Controller, all versions, RSLogix 500 Software v12.001 and prior"
      }
    ]
  }
]

References

www.us-cert.gov/ics/advisories/icsa-20-070-06

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

7.7

Confidence

High

EPSS

0.001

Percentile

46.8%

JSON

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