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CVE-2023-50821

Quick assessment

Affected
Siemens SIMATIC PCS 7 V9.1
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是德国西门子（Siemens）公司的一套过程控制系统。 Siemens SIMATIC PCS 7存在安全漏洞，该漏洞源于无法正确验证登录对话框的输入，导致攻击者可以造成拒绝服务（DOS）。受影响的产品和版本：SIMATIC PCS 7 V9.1 SP2 UC04之前的V9.1版本，SIMATIC WinCC Runtime Professional V17版本，SIMATIC WinCC Runtime Pro V18版本。

CVSS 6.2 · Medium EPSS 0.18% · P7

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2023-50821

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 V9.1 (All versions < V9.1 SP2 UC04), SIMATIC WinCC Runtime Professional V17 (All versions < V17 Update 8), SIMATIC WinCC Runtime Professional V18 (All versions < V18 Update 4), SIMATIC WinCC Runtime Professional V19 (All versions < V19 Update 1), SIMATIC WinCC V7.5 (All versions < V7.5 SP2 Update 16), SIMATIC WinCC V8.0 (All versions < V8.0 Update 5). The affected products do not properly validate the input provided in the login dialog box. An attacker could leverage this vulnerability to cause a persistent denial of service condition.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Vulnerability Title
Siemens SIMATIC PCS 7 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Siemens SIMATIC PCS 7是德国西门子（Siemens）公司的一套过程控制系统。 Siemens SIMATIC PCS 7存在安全漏洞，该漏洞源于无法正确验证登录对话框的输入，导致攻击者可以造成拒绝服务（DOS）。受影响的产品和版本：SIMATIC PCS 7 V9.1 SP2 UC04之前的V9.1版本，SIMATIC WinCC Runtime Professional V17版本，SIMATIC WinCC Runtime Pro V18版本。
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 V9.1 0 ~ V9.1 SP2 UC04 -
Siemens SIMATIC WinCC Runtime Professional V17 0 ~ V17 Update 8 -
Siemens SIMATIC WinCC Runtime Professional V18 0 ~ V18 Update 4 -
Siemens SIMATIC WinCC Runtime Professional V19 0 ~ V19 Update 1 -
Siemens SIMATIC WinCC V7.5 0 ~ V7.5 SP2 Update 16 -
Siemens SIMATIC WinCC V8.0 0 ~ V8.0 Update 5 -

II. Public POCs for CVE-2023-50821

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III. Intelligence Information for CVE-2023-50821

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Vendor Advisories for CVE-2023-50821 (1)

Same Patch Batch · Siemens · 2024-04-09 · 8 CVEs total

CVE-2024-30191 8.4 HIGH Siemens SCALANCE W700产品系列安全漏洞
CVE-2024-26275 7.8 HIGH Siemens Parasolid 缓冲区错误漏洞
CVE-2024-31978 7.6 HIGH Siemens SINEC NMS 路径遍历漏洞
CVE-2024-30189 6.1 MEDIUM Siemens SCALANCE W700产品系列安全漏洞
CVE-2024-30190 6.1 MEDIUM Siemens SCALANCE W700产品系列安全漏洞
CVE-2024-26276 3.3 LOW Siemens Parasolid 安全漏洞
CVE-2024-26277 3.3 LOW Siemens Parasolid 代码问题漏洞

IV. Related Vulnerabilities

Same product: SIMATIC PCS 7 V9.1
Same vendor: Siemens
Same weakness: CWE-120

V. Comments for CVE-2023-50821

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