CVE-2022-21159

CVSS V2 Medium 5 CVSS V3 High 7.5

Description

A denial of service vulnerability exists in the parseNormalModeParameters functionality of MZ Automation GmbH libiec61850 1.5.0. A specially-crafted series of network requests can lead to denial of service. An attacker can send a sequence of malformed iec61850 messages to trigger this vulnerability.

Overview

CVE ID
CVE-2022-21159

Assigner
talos-cna@cisco.com

Vulnerability Status
Analyzed

Published Version
2022-04-15T16:15:07

Last Modified Date
2022-04-25T16:10:15

Weakness Enumerations

CWE	URL
CWE-835	http://cwe.mitre.org/data/definitions/835.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:mz-automation:libiec61850:1.5.0:::::::*	1	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://talosintelligence.com/vulnerability_reports/TALOS-2022-1467	Exploit Third Party Advisory
https://github.com/mz-automation/libiec61850/commit/cfa94cbf10302bedc779703f874ee2e8387a0721	Patch Third Party Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2022-1467	Exploit Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2022-21159
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-21159

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 06:26:56				Added to TrackCVE