CVE-2021-25909

CVSS V2 Medium 5 CVSS V3 High 7.5

Description

ZIV Automation 4CCT-EA6-334126BF firmware version 3.23.80.27.36371, allows an unauthenticated, remote attacker to cause a denial of service condition on the device. An attacker could exploit this vulnerability by sending specific packets to the port 7919.

Overview

CVE ID
CVE-2021-25909

Assigner
cve-coordination@incibe.es

Vulnerability Status
Analyzed

Published Version
2021-01-29T14:15:12

Last Modified Date
2021-02-05T13:49:36

Weakness Enumerations

CWE	URL
CWE-400	http://cwe.mitre.org/data/definitions/400.html

CPE Configuration (Product)

CPE	Vulnerable	Operator
		AND
cpe:2.3:o:zivautomation:4cct-ea6-334126bf_firmware:3.23.80.27.36371:::::::*	1	OR
cpe:2.3:h:zivautomation:4cct-ea6-334126bf:-:::::::*	0	OR

CVSS Version 2

Version
2.0

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

Access Vector
NETWORK

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
NONE

Integrity Impact
NONE

Availability Impact
PARTIAL

Base Score
5

Severity
MEDIUM

Exploitability Score
10

Impact Score
2.9

CVSS Version 3

Version
3.1

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

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
NONE

Availability Impact
HIGH

Base Score
7.5

Base Severity
HIGH

Exploitability Score
3.9

Impact Score
3.6

References

Reference URL	Reference Tags
https://www.incibe-cert.es/en/early-warning/ics-advisories/4cct-vulnerable-denial-service-attack	Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2021-25909
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-25909

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 07:24:31				Added to TrackCVE
2022-12-05 21:06:01	2021-01-29T14:15Z	2021-01-29T14:15:12	CVE Published Date	updated
2022-12-05 21:06:01		2021-02-05T13:49:36	CVE Modified Date	updated
2022-12-05 21:06:01		Analyzed	Vulnerability Status	updated