IM
IronMonkey Threat Research

CVE-2021-27434 HIGH

Published: 2021-05-20 | Last Modified: 2024-11-21 | Status: Modified

Description

Products with Unified Automation .NET based OPC UA Client/Server SDK Bundle: Versions V3.0.7 and prior (.NET 4.5, 4.0, and 3.5 Framework versions only) are vulnerable to an uncontrolled recursion, which may allow an attacker to trigger a stack overflow.

Additional Descriptions (1)

Productos con el programa Unified Automation .NET based OPC UA Client/Server SDK Bundle: Versiones V3.0.7 y anteriores (solo versiones de .NET 4.5, 4.0 y 3.5 Framework) son vulnerables a una recursividad no controlada, que puede permitir a un atacante desencadenar un desbordamiento de pila

CVSS Metrics

Base Score: 7.5 (HIGH)

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

Attack VectorNETWORK
Attack ComplexityLOW
Privileges RequiredNONE
User InteractionNONE
ScopeUNCHANGED
Confidentiality ImpactHIGH
Integrity ImpactNONE
Availability ImpactNONE

Source: [email protected]

Type: Primary

Exploitability Score: 3.9

Impact Score: 3.6

Base Score: 5.0 (MEDIUM)

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

Access VectorNETWORK
Access ComplexityLOW
AuthenticationNONE
Confidentiality ImpactPARTIAL
Integrity ImpactNONE
Availability ImpactNONE

Source: [email protected]

Type: Primary

Exploitability Score: 10.0

Impact Score: 2.9

Weaknesses

Source Type Description
[email protected] Secondary
en CWE-200
[email protected] Primary
en CWE-674

Affected Products

Vendor Product Version Update Type
unified-automation .net_based_opc_ua_client\/server_sdk * <built-in method update of dict object at 0x72a9b0a6e000> Application

Affected Configurations

Operator: OR

Vulnerable CPE
Yes cpe:2.3:a:unified-automation:.net_based_opc_ua_client\/server_sdk:*:*:*:*:*:*:*:*

Operator: OR

Vulnerable CPE
No cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:*
No cpe:2.3:a:microsoft:.net_framework:4.0:*:*:*:*:*:*:*
No cpe:2.3:a:microsoft:.net_framework:4.5:*:*:*:*:*:*:*

References

Notification
Message here