Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2023-28831

Severity CVSS v4.0:
HIGH
Type:
CWE-190 Integer Overflow or Wraparound
Publication date:
12/09/2023
Last modified:
18/08/2025

Description

The OPC UA implementations (ANSI C and C++) in affected products contain an integer overflow vulnerability that could cause the application to run into an infinite loop during certificate validation.<br /> <br /> This could allow an unauthenticated remote attacker to create a denial of service condition by sending a specially crafted certificate.

Impact

Vector 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS v4.0 Severity and Metrics:

Base Score: 8.70 HIGH
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Attack Requirements (AT): None
Privileges Required (PR): None
User Interaction (UI): None
Confidentiality (VC): None
Integrity (VI): None
Availability (VA): High
Confidentiality (SC): None
Integrity (SI): None
Availability (SA): None

Base Score 4.0
8.70
Severity 4.0
HIGH
Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
7.50
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:siemens:simatic_cloud_connect_7_cc712_firmware:*:*:*:*:*:*:*:* 2.2 (excluding)
cpe:2.3:h:siemens:simatic_cloud_connect_7_cc712:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_cloud_connect_7_cc716_firmware:*:*:*:*:*:*:*:* 2.2 (excluding)
cpe:2.3:h:siemens:simatic_cloud_connect_7_cc716:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_drive_controller_cpu_1504d_tf_firmware:*:*:*:*:*:*:*:* 2.2 (excluding)
cpe:2.3:h:siemens:simatic_drive_controller_cpu_1504d_tf:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_drive_controller_cpu_1507d_tf_firmware:*:*:*:*:*:*:*:* 2.9.7 (excluding)
cpe:2.3:h:siemens:simatic_drive_controller_cpu_1507d_tf:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_et_200sp_open_controller_cpu_firmware:*:*:*:*:*:*:*:* 2.9.7 (excluding)
cpe:2.3:h:siemens:simatic_et_200sp_open_controller_cpu:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_s7-1200_cpu_firmware:*:*:*:*:*:*:*:* 3.0.3 (excluding)
cpe:2.3:h:siemens:simatic_s7-1200_cpu:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_s7-1500_cpu_1510sp-1_pn_firmware:*:*:*:*:*:*:*:* 2.9.7 (excluding)
cpe:2.3:h:siemens:simatic_s7-1500_cpu_1510sp-1_pn:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_s7-1500_cpu_1510sp_f-1_pn_firmware:*:*:*:*:*:*:*:* 3.0.3 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools