IM
IronMonkey Threat Research

CVE-2021-21865 HIGH

Published: 2021-08-02 | Last Modified: 2024-11-21 | Status: Modified

Description

A unsafe deserialization vulnerability exists in the PackageManagement.plugin ExtensionMethods.Clone() functionality of CODESYS GmbH CODESYS Development System 3.5.16. A specially crafted file can lead to arbitrary command execution. An attacker can provide a malicious file to trigger this vulnerability.

Additional Descriptions (1)

Se presenta una vulnerabilidad de deserialización no segura en la funcionalidad PackageManagement.plugin ExtensionMethods.Clone() de CODESYS GmbH CODESYS Development System versión 3.5.16. Un archivo especialmente diseñado puede conllevar a una ejecución arbitraria de comandos. Un atacante puede proporcionar un archivo malicioso para desencadenar esta vulnerabilidad

CVSS Metrics

Base Score: 7.8 (HIGH)

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

Attack VectorLOCAL
Attack ComplexityLOW
Privileges RequiredNONE
User InteractionREQUIRED
ScopeUNCHANGED
Confidentiality ImpactHIGH
Integrity ImpactHIGH
Availability ImpactHIGH

Source: [email protected]

Type: Primary

Exploitability Score: 1.8

Impact Score: 5.9

Base Score: 6.8 (MEDIUM)

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

Access VectorNETWORK
Access ComplexityMEDIUM
AuthenticationNONE
Confidentiality ImpactPARTIAL
Integrity ImpactPARTIAL
Availability ImpactPARTIAL

Source: [email protected]

Type: Primary

Exploitability Score: 8.6

Impact Score: 6.4

Weaknesses

Source Type Description
[email protected] Secondary
en CWE-502
[email protected] Primary
en CWE-502

Affected Products

Vendor Product Version Update Type
codesys development_system 3.5.16.0 <built-in method update of dict object at 0x7e60ba9bdb40> Application
codesys development_system 3.5.17.0 <built-in method update of dict object at 0x7e60a8a57400> Application

Affected Configurations

Operator: OR

Vulnerable CPE
Yes cpe:2.3:a:codesys:development_system:3.5.16.0:*:*:*:*:*:*:*
Yes cpe:2.3:a:codesys:development_system:3.5.17.0:*:*:*:*:*:*:*
Notification
Message here