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[email protected]NVD:CVE-2021-34578

HistoryAug 31, 2021 - 11:15 a.m.

CVE-2021-34578

2021-08-3111:15:07

CWE-287

[email protected]

web.nvd.nist.gov

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.003 Low

EPSS

Percentile

70.2%

JSON

This vulnerability allows an attacker who has access to the WBM to read and write settings-parameters of the device by sending specifically constructed requests without authentication on multiple WAGO PLCs in firmware versions up to FW07.

Affected configurations

NVD

Node

wago750-890\/040-000_firmwareRange≤fw07

AND

wago750-890\/040-000Match-

Node

wago750-890\/025-001_firmwareRange≤fw07

AND

wago750-890\/025-001Match-

Node

wago750-890\/025-002_firmwareRange≤fw07

AND

wago750-890\/025-002Match-

Node

wago750-890\/025-000_firmwareRange≤fw07

AND

wago750-890\/025-000Match-

Node

wago750-832\/000-002_firmwareRange≤fw07

AND

wago750-832\/000-002Match-

Node

wago750-362_firmwareRange≤fw07

AND

wago750-362Match-

Node

wago750-823_firmwareRange≤fw07

AND

wago750-823Match-

Node

wago750-832_firmwareRange≤fw07

AND

wago750-832Match-

Node

wago750-363_firmwareRange≤fw07

AND

wago750-363Match-

Node

wago750-862_firmwareRange≤fw07

AND

wago750-862Match-

Node

wago750-891_firmwareRange≤fw07

AND

wago750-891Match-

Node

wago750-893_firmwareRange≤fw07

AND

wago750-893Match-

References

cert.vde.com/en-us/advisories/vde-2020-044

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.003 Low

EPSS

Percentile

70.2%

JSON

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