CVE-2023-27334— Softing edgeConnector Siemens ConditionRefresh Resource Exhaustion Denial-of-Service Vulnerability
Quick assessment
Affected
Softing edgeConnector Siemens
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.
Softing edgeConnector是Softing公司的一款基于 Docker 的软件应用。可访问 SIMATIC S7、SINUMERIK 840D 和 Modbus TCP 控制器中的过程数据。 Softing edgeAggregator 存在安全漏洞，该漏洞源于OPC UA ConditionRefresh 请求的处理中存在特定缺陷，通过发送大量请求，攻击者可以消耗服务器上的所有可用资源。
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I. Basic Information for CVE-2023-27334
Vulnerability Information
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Vulnerability Title
Softing edgeConnector Siemens ConditionRefresh Resource Exhaustion Denial-of-Service Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Softing edgeConnector Siemens ConditionRefresh Resource Exhaustion Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Softing edgeConnector Siemens. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the handling of OPC UA ConditionRefresh requests. By sending a large number of requests, an attacker can consume all available resources on the server. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-20498.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
Softing edgeConnector 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Softing edgeConnector是Softing公司的一款基于 Docker 的软件应用。可访问 SIMATIC S7、SINUMERIK 840D 和 Modbus TCP 控制器中的过程数据。 Softing edgeAggregator 存在安全漏洞，该漏洞源于OPC UA ConditionRefresh 请求的处理中存在特定缺陷，通过发送大量请求，攻击者可以消耗服务器上的所有可用资源。
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 |
|---|---|---|---|---|
| Softing | edgeConnector Siemens | 3.40 | - |
|
II. Public POCs for CVE-2023-27334
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2023-27334 (1)
-
ZDI-23-1054 | Zero Day Initiative x_research-advisory
Other References for CVE-2023-27334 (1)
Same Patch Batch · Softing · 2024-05-03 · 9 CVEs total
| CVE-2023-39480 | Softing Secure Integration Server FileDirectory OPC UA Object Arbitrary File Creation Vuln | |
| CVE-2023-39481 | Softing Secure Integration Server Interpretation Conflict Remote Code Execution Vulnerabil | |
| CVE-2023-39482 | Softing Secure Integration Server Hardcoded Cryptographic Key Information Disclosure Vulne | |
| CVE-2023-39479 | Softing Secure Integration Server OPC UA Gateway Directory Creation Vulnerability | |
| CVE-2023-39478 | Softing Secure Integration Server Exposure of Resource to Wrong Sphere Remote Code Executi | |
| CVE-2023-38125 | Softing edgeAggregator Permissive Cross-domain Policy with Untrusted Domains Remote Code E | |
| CVE-2023-27336 | Softing edgeConnector Siemens OPC UA Server Null Pointer Dereference Denial-of-Service Vul | |
| CVE-2023-27335 | Softing edgeAggregator Client Cross-Site Scripting Remote Code Execution Vulnerability |
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V. Comments for CVE-2023-27334
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