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CVE-2020-28397

Quick assessment

Affected
Siemens SIMATIC Drive Controller family
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Siemens SIMATIC S7-1500 CPU和SIMATIC S7-1500都是德国西门子（Siemens）公司的产品。SIMATIC S7-1500 CPU是一款CPU（中央处理器）模块。SIMATIC S7-1500是一款可编程逻辑控制器。 多款SIMATIC产品存在授权问题漏洞，该漏洞源于受影响组件中的授权检查不正确，攻击者可以在一次读取多个属性时从受影响的设备中提取有关通过端口 102/tcp 访问受保护 PLC 程序变量的信息。以下产品及版本受到影响：SIMATIC Drive Con

AI Predicted 5.3 Difficulty: Moderate EPSS 0.75% · P54

Possible ATT&CK Techniques 1 AI

T1005 · Data from Local System
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I. Basic Information for CVE-2020-28397

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been identified in SIMATIC Drive Controller family (All versions < V2.9.2), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions < V21.9), SIMATIC S7 PLCSIM Advanced (All versions > V2 < V4), SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (Version V4.4), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions > V2.5 < V2.9.2), SIMATIC S7-1500 Software Controller (All versions > V2.5 < V21.9), TIM 1531 IRC (incl. SIPLUS NET variants) (Version V2.1). Due to an incorrect authorization check in the affected component, an attacker could extract information about access protected PLC program variables over port 102/tcp from an affected device when reading multiple attributes at once.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
Siemens SIMATIC S7-1500 CPU和SIMATIC S7-1500 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Siemens SIMATIC S7-1500 CPU和SIMATIC S7-1500都是德国西门子（Siemens）公司的产品。SIMATIC S7-1500 CPU是一款CPU（中央处理器）模块。SIMATIC S7-1500是一款可编程逻辑控制器。 多款SIMATIC产品存在授权问题漏洞，该漏洞源于受影响组件中的授权检查不正确，攻击者可以在一次读取多个属性时从受影响的设备中提取有关通过端口 102/tcp 访问受保护 PLC 程序变量的信息。以下产品及版本受到影响：SIMATIC Drive Con
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Siemens SIMATIC Drive Controller family All versions < V2.9.2 -
Siemens SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) All versions < V21.9 -
Siemens SIMATIC S7 PLCSIM Advanced All versions > V2 < V4 -
Siemens SIMATIC S7-1200 CPU family (incl. SIPLUS variants) Version V4.4 -
Siemens SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) All versions > V2.5 < V2.9.2 -
Siemens SIMATIC S7-1500 Software Controller All versions > V2.5 < V21.9 -
Siemens TIM 1531 IRC (incl. SIPLUS NET variants) Version V2.1 -

II. Public POCs for CVE-2020-28397

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III. Intelligence Information for CVE-2020-28397

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Vendor Advisories for CVE-2020-28397 (1)

Same Patch Batch · Siemens · 2021-08-10 · 9 CVEs total

CVE-2021-25659 Siemens Automation License Manager 资源管理错误漏洞
CVE-2021-33717 JT2Go 和Teamcenter Visualization 代码问题漏洞
CVE-2021-33721 SINEC NMS 操作系统命令注入漏洞
CVE-2021-33738 Siemens Teamcenter Visualization和Siemens Jt2go缓冲区错误漏洞
CVE-2021-37172 SIMATIC S7-1200 授权问题漏洞
CVE-2021-37178 Siemens Solid Edge 代码问题漏洞
CVE-2021-37179 Siemens Solid Edge 资源管理错误漏洞
CVE-2021-37180 Siemens Solid Edge 缓冲区错误漏洞

IV. Related Vulnerabilities

Same product: SIMATIC Drive Controller family
Same vendor: Siemens
Same weakness: CWE-863

V. Comments for CVE-2020-28397

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