CVE-2021-43931

The authentication algorithm of the WebHMI portal is sound, but the implemented mechanism can be bypassed as the result of a separate weakness that is primary to the authentication error.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

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

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://us-cert.cisa.gov/ics/advisories/icsa-21-336-03	Patch Third Party Advisory US Government Resource
https://us-cert.cisa.gov/ics/advisories/icsa-21-336-03	Patch Third Party Advisory US Government Resource

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:webhmi:webhmi_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:webhmi:webhmi:-:*:*:*:*:*:*:*

History

21 Nov 2024, 06:30

Type	Values Removed	Values Added
References	~~() https://us-cert.cisa.gov/ics/advisories/icsa-21-336-03 - Patch, Third Party Advisory, US Government Resource~~	() https://us-cert.cisa.gov/ics/advisories/icsa-21-336-03 - Patch, Third Party Advisory, US Government Resource

07 Dec 2021, 01:30

Type	Values Removed	Values Added
CWE		CWE-287
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : 7.5 v3 : 9.8
CPE		cpe:2.3:o:webhmi:webhmi_firmware:::::::: cpe:2.3:h:webhmi:webhmi:-:::::::*
References	~~(MISC) https://us-cert.cisa.gov/ics/advisories/icsa-21-336-03 -~~	(MISC) https://us-cert.cisa.gov/ics/advisories/icsa-21-336-03 - Patch, Third Party Advisory, US Government Resource

06 Dec 2021, 18:21

Type	Values Removed	Values Added
New CVE

Information

Published : 2021-12-06 18:15

Updated : 2024-11-21 06:30

NVD link : CVE-2021-43931

Mitre link : CVE-2021-43931

CVE.ORG link : CVE-2021-43931

JSON object : View

Products Affected

webhmi

webhmi
webhmi_firmware

CWE

CWE-287

Improper Authentication

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