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CVE-2021-33721

Quick assessment

Affected
Siemens SINEC NMS
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 SINEC NMS是德国西门子（Siemens）公司的 一个网络管理系统 (NMS)，该系统可用于全天候集中监控、管理和配置具有数万台设备的工业网络，包括与安全相关的领域。 SINEC NMS 1.0 SP2之前版本存在操作系统命令注入漏洞，该漏洞源于应用程序在创建可能导致命令注入的批处理操作时错误地中和了特殊元素。具有管理权限的经过身份验证的远程攻击者可以利用此漏洞在具有系统权限的系统上执行任意代码。

AI Predicted 7.8 Difficulty: Easy EPSS 2.67% · P85

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2021-33721

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been identified in SINEC NMS (All versions < V1.0 SP2). The affected application incorrectly neutralizes special elements when creating batch operations which could lead to command injection. An authenticated remote attacker with administrative privileges could exploit this vulnerability to execute arbitrary code on the system with system privileges.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
SINEC NMS 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Siemens SINEC NMS是德国西门子（Siemens）公司的 一个网络管理系统 (NMS)，该系统可用于全天候集中监控、管理和配置具有数万台设备的工业网络，包括与安全相关的领域。 SINEC NMS 1.0 SP2之前版本存在操作系统命令注入漏洞，该漏洞源于应用程序在创建可能导致命令注入的批处理操作时错误地中和了特殊元素。具有管理权限的经过身份验证的远程攻击者可以利用此漏洞在具有系统权限的系统上执行任意代码。
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 SINEC NMS All versions < V1.0 SP2 -

II. Public POCs for CVE-2021-33721

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III. Intelligence Information for CVE-2021-33721

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Vendor Advisories for CVE-2021-33721 (1)

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

CVE-2020-28397 Siemens SIMATIC S7-1500 CPU和SIMATIC S7-1500 授权问题漏洞
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-2021-33738 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: SINEC NMS
Same vendor: Siemens
Same weakness: CWE-78

V. Comments for CVE-2021-33721

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