Vulnerability Monitor

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CVE-2021-45033


A vulnerability has been identified in CP-8000 MASTER MODULE WITH I/O -25/+70°C (All versions < V16.20), CP-8000 MASTER MODULE WITH I/O -40/+70°C (All versions < V16.20), CP-8021 MASTER MODULE (All versions < V16.20), CP-8022 MASTER MODULE WITH GPRS (All versions < V16.20). An undocumented debug port uses hard-coded default credentials. If this port is enabled by a privileged user, an attacker aware of the credentials could access an administrative debug shell on the affected device.


Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 8.8, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction requiring only low-level privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 8 products from siemens, from siemens, from siemens and 5 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2022, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.


Published

2022-01-11T12:15:10.093

Last Modified

2024-11-21T06:31:50.027

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.8 (HIGH)

CVSSv2 Vector

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

  • Access Vector: NETWORK
  • Access Complexity: MEDIUM
  • Authentication: SINGLE
  • Confidentiality Impact: COMPLETE
  • Integrity Impact: COMPLETE
  • Availability Impact: COMPLETE
Exploitability Score

6.8

Impact Score

10.0

Weaknesses
  • Type: Secondary
    CWE-798
  • Type: Primary
    CWE-798

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System siemens cp-8000_master_module_with_i\/o_-25\/\+70_firmware < 16.20 Yes
Hardware siemens cp-8000_master_module_with_i\/o_-25\/\+70 * No
Operating System siemens cp-8000_master_module_with_i\/o_-40\/\+70_firmware < 16.20 Yes
Hardware siemens cp-8000_master_module_with_i\/o_-40\/\+70 * No
Operating System siemens cp-8021_master_module_firmware < 16.20 Yes
Hardware siemens cp-8021_master_module * No
Operating System siemens cp-8022_master_module_with_gprs_firmware < 16.20 Yes
Hardware siemens cp-8022_master_module_with_gprs * No

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For siemens's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.