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CVE-2021-40363

Quick assessment

Affected
Siemens SIMATIC PCS 7 V8.2
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 PCS 7和Siemens SIMATIC WinCC都是德国西门子（Siemens）公司的产品。Siemens SIMATIC PCS 7是一套过程控制系统。Siemens SIMATIC WinCC是一套自动化的数据采集与监控（SCADA）系统。 Siemens SIMATIC PCS 7和SIMATIC WinCC 中存在授权问题漏洞，该漏洞源于产品缺少有效的授权方式。攻击者可利用该漏洞可以通过爆破获得用户特权。

AI Predicted 7.8 Difficulty: Easy EPSS 0.16% · P6
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I. Basic Information for CVE-2021-40363

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 PCS 7 V8.2 (All versions), SIMATIC PCS 7 V9.0 (All versions), SIMATIC PCS 7 V9.1 (All versions < V9.1 SP1), SIMATIC WinCC V15 and earlier (All versions < V15 SP1 Update 7), SIMATIC WinCC V16 (All versions < V16 Update 5), SIMATIC WinCC V17 (All versions < V17 Update 2), SIMATIC WinCC V17 (All versions <= V17 Update 4), SIMATIC WinCC V7.4 (All versions < V7.4 SP1 Update 19), SIMATIC WinCC V7.5 (All versions < V7.5 SP2 Update 6). The affected component stores the credentials of a local system account in a potentially publicly accessible project file using an outdated cipher algorithm. An attacker may use this to brute force the credentials and take over the system.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
文件和路径信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Siemens SIMATIC PCS 7和SIMATIC WinCC 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Siemens SIMATIC PCS 7和Siemens SIMATIC WinCC都是德国西门子（Siemens）公司的产品。Siemens SIMATIC PCS 7是一套过程控制系统。Siemens SIMATIC WinCC是一套自动化的数据采集与监控（SCADA）系统。 Siemens SIMATIC PCS 7和SIMATIC WinCC 中存在授权问题漏洞，该漏洞源于产品缺少有效的授权方式。攻击者可利用该漏洞可以通过爆破获得用户特权。
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 PCS 7 V8.2 All versions -
Siemens SIMATIC PCS 7 V9.0 All versions -
Siemens SIMATIC PCS 7 V9.1 All versions < V9.1 SP1 -
Siemens SIMATIC WinCC V15 and earlier All versions < V15 SP1 Update 7 -
Siemens SIMATIC WinCC V16 All versions < V16 Update 5 -
Siemens SIMATIC WinCC V17 All versions < V17 Update 2 -
Siemens SIMATIC WinCC V17 All versions <= V17 Update 4 -
Siemens SIMATIC WinCC V7.4 All versions < V7.4 SP1 Update 19 -
Siemens SIMATIC WinCC V7.5 All versions < V7.5 SP2 Update 6 -

II. Public POCs for CVE-2021-40363

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III. Intelligence Information for CVE-2021-40363

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Vendor Advisories for CVE-2021-40363 (1)

Same Patch Batch · Siemens · 2022-02-09 · 23 CVEs total

CVE-2021-37204 7.5 HIGH Siemens SIMATIC S7-1500系列产品输入验证错误漏洞
CVE-2021-37205 7.5 HIGH Siemens SIMATIC S7-1500 系列产品输入验证错误漏洞
CVE-2021-37185 7.5 HIGH Siemens SIMATIC S7-1500 系列产品输入验证错误漏洞
CVE-2021-46153 Siemens Simcenter Femap 缓冲区错误漏洞
CVE-2022-23312 Siemens Spectrum Power 跨站脚本漏洞
CVE-2022-23102 Siemens SINEMA Remote Connect Server 输入验证错误漏洞
CVE-2021-46161 Siemens Simcenter Femap 缓冲区错误漏洞
CVE-2021-46160 Siemens Simcenter Femap 缓冲区错误漏洞
CVE-2021-46159 Siemens Simcenter Femap 缓冲区错误漏洞
CVE-2021-46158 Siemens Simcenter Femap 缓冲区错误漏洞
CVE-2021-46157 Siemens Simcenter Femap 缓冲区错误漏洞
CVE-2021-46156 Siemens Simcenter Femap 缓冲区错误漏洞
CVE-2021-46155 Siemens Simcenter Femap 缓冲区错误漏洞
CVE-2021-46154 Siemens Simcenter Femap 缓冲区错误漏洞
CVE-2021-46152 Siemens Simcenter Femap 安全漏洞
CVE-2021-46151 Siemens Simcenter Femap 缓冲区错误漏洞
CVE-2021-45106 Siemens Sicam Toolbox II 信任管理问题漏洞
CVE-2021-44018 多款Siemens产品缓冲区错误漏洞
CVE-2021-44016 多款Siemens产品缓冲区错误漏洞
CVE-2021-44000 多款Siemens产品缓冲区错误漏洞

Showing top 20 of 23 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: SIMATIC PCS 7 V8.2
Same vendor: Siemens
Same weakness: CWE-538

V. Comments for CVE-2021-40363

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