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nvd[email protected]NVD:CVE-2021-20826
HistoryDec 24, 2021 - 7:15 a.m.

CVE-2021-20826

2021-12-2407:15:06
CWE-522
[email protected]
web.nvd.nist.gov
4
transport vulnerability
idec plcs
credentials
web server access
manipulation
suspension.

CVSS2

3.3

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

7.6

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

LOW

Availability Impact

LOW

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

EPSS

0.001

Percentile

34.0%

JSON

Unprotected transport of credentials vulnerability in IDEC PLCs (FC6A Series MICROSmart All-in-One CPU module v2.32 and earlier, FC6A Series MICROSmart Plus CPU module v1.91 and earlier, WindLDR v8.19.1 and earlier, WindEDIT Lite v1.3.1 and earlier, and Data File Manager v2.12.1 and earlier) allows an attacker to obtain the PLC Web server user credentials from the communication between the PLC and the software. As a result, the complete access privileges to the PLC Web server may be obtained, and manipulation of the PLC output and/or suspension of the PLC may be conducted.

Affected configurations

Nvd
Node
idecmicrosmart_fc6aMatch-
AND
idecmicrosmart_fc6a_firmwareRange≤2.32
Node
idecmicrosmart_plus_fc6aMatch-
AND
idecmicrosmart_plus_fc6a_firmwareRange≤1.91
Node
idecdata_file_managerRange≤2.12.1
OR
idecwindeditRange≤1.3.1
OR
idecwindldrRange≤8.19.1
VendorProductVersionCPE
idecmicrosmart_fc6a-cpe:2.3:h:idec:microsmart_fc6a:-:*:*:*:*:*:*:*
idecmicrosmart_fc6a_firmware*cpe:2.3:o:idec:microsmart_fc6a_firmware:*:*:*:*:*:*:*:*
idecmicrosmart_plus_fc6a-cpe:2.3:h:idec:microsmart_plus_fc6a:-:*:*:*:*:*:*:*
idecmicrosmart_plus_fc6a_firmware*cpe:2.3:o:idec:microsmart_plus_fc6a_firmware:*:*:*:*:*:*:*:*
idecdata_file_manager*cpe:2.3:a:idec:data_file_manager:*:*:*:*:*:*:*:*
idecwindedit*cpe:2.3:a:idec:windedit:*:*:*:*:*:*:*:*
idecwindldr*cpe:2.3:a:idec:windldr:*:*:*:*:*:*:*:*

Related

cve 1
prion 1
cvelist 1
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cve
cve
CVE-2021-20826
2021-12-24 07:15:06
prion
prion
Design/Logic Flaw
2021-12-24 07:15:00
cvelist
cvelist
CVE-2021-20826
2021-12-24 06:30:26
ics
ics
IDEC PLCs
2022-01-06 12:00:00

CVSS2

3.3

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

7.6

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

LOW

Availability Impact

LOW

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

EPSS

0.001

Percentile

34.0%

JSON
Related for NVD:CVE-2021-20826
cve1prion1cvelist1ics1