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CVE-2019-13939

Quick assessment

Affected
Siemens APOGEE MEC/MBC/PXC (P2)
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 Desigo PX等都是德国西门子（Siemens）公司的产品。Siemens Desigo PX是一套楼宇自动化控制系统。Siemens Nucleus是一个工控设备。Siemens APOGEE MBC是 多款Siemens产品中存在输入验证错误漏洞。攻击者可借助特制DHCP数据包利用该漏洞影响设备的完整性和可用性。以下产品及版本受到影响：APOGEE MEC / MBC / PXC（P2）（所有版本<V2.8.2），APOGEE PXC系列（BACnet）（所有版本> = V3.0）

CVSS 7.1 · High EPSS 0.71% · P52

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2019-13939

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been identified in APOGEE MEC/MBC/PXC (P2) (All versions < V2.8.2), APOGEE PXC Compact (BACnet) (All versions < V3.5.3), APOGEE PXC Compact (P2 Ethernet) (All versions >= V2.8.2 < V2.8.19), APOGEE PXC Modular (BACnet) (All versions < V3.5.3), APOGEE PXC Modular (P2 Ethernet) (All versions >= V2.8.2 < V2.8.19), Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions < V2303), Desigo PXC00-E.D (All versions >= V2.3 < V6.0.327), Desigo PXC00-U (All versions >= V2.3x and < V6.00.327), Desigo PXC001-E.D (All versions >= V2.3 < V6.0.327), Desigo PXC100-E.D (All versions >= V2.3 < V6.0.327), Desigo PXC12-E.D (All versions >= V2.3 < V6.0.327), Desigo PXC128-U (All versions >= V2.3x and < V6.00.327), Desigo PXC200-E.D (All versions >= V2.3 < V6.0.327), Desigo PXC22-E.D (All versions >= V2.3 < V6.0.327), Desigo PXC22.1-E.D (All versions >= V2.3 < V6.0.327), Desigo PXC36.1-E.D (All versions >= V2.3 < V6.0.327), Desigo PXC50-E.D (All versions >= V2.3 < V6.0.327), Desigo PXC64-U (All versions >= V2.3x and < V6.00.327), Desigo PXM20-E (All versions >= V2.3 < V6.0.327), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2017.02.3), Nucleus Source Code (All versions), SIMOTICS CONNECT 400 (All versions < V0.3.0.330), TALON TC Compact (BACnet) (All versions < V3.5.3), TALON TC Modular (BACnet) (All versions < V3.5.3). By sending specially crafted DHCP packets to a device where the DHCP client is enabled, an attacker could change the IP address of the device to an invalid value.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
多款Siemens产品输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Siemens Desigo PX等都是德国西门子（Siemens）公司的产品。Siemens Desigo PX是一套楼宇自动化控制系统。Siemens Nucleus是一个工控设备。Siemens APOGEE MBC是 多款Siemens产品中存在输入验证错误漏洞。攻击者可借助特制DHCP数据包利用该漏洞影响设备的完整性和可用性。以下产品及版本受到影响：APOGEE MEC / MBC / PXC（P2）（所有版本<V2.8.2），APOGEE PXC系列（BACnet）（所有版本> = V3.0）
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 APOGEE MEC/MBC/PXC (P2) All versions < V2.8.2 -
Siemens APOGEE PXC Compact (BACnet) 0 ~ V3.5.3 -
Siemens APOGEE PXC Compact (P2 Ethernet) V2.8.2 ~ V2.8.19 -
Siemens APOGEE PXC Modular (BACnet) 0 ~ V3.5.3 -
Siemens APOGEE PXC Modular (P2 Ethernet) V2.8.2 ~ V2.8.19 -
Siemens Capital Embedded AR Classic 431-422 0 ~ * -
Siemens Capital Embedded AR Classic R20-11 0 ~ V2303 -
Siemens Desigo PXC00-E.D V2.3 ~ V6.0.327 -
Siemens Desigo PXC00-U All versions >= V2.3x and < V6.00.327 -
Siemens Desigo PXC001-E.D V2.3 ~ V6.0.327 -
Siemens Desigo PXC100-E.D V2.3 ~ V6.0.327 -
Siemens Desigo PXC12-E.D V2.3 ~ V6.0.327 -
Siemens Desigo PXC128-U All versions >= V2.3x and < V6.00.327 -
Siemens Desigo PXC200-E.D V2.3 ~ V6.0.327 -
Siemens Desigo PXC22-E.D V2.3 ~ V6.0.327 -
Siemens Desigo PXC22.1-E.D V2.3 ~ V6.0.327 -
Siemens Desigo PXC36.1-E.D V2.3 ~ V6.0.327 -
Siemens Desigo PXC50-E.D V2.3 ~ V6.0.327 -
Siemens Desigo PXC64-U All versions >= V2.3x and < V6.00.327 -
Siemens Desigo PXM20-E V2.3 ~ V6.0.327 -
Siemens Nucleus NET 0 ~ * -
Siemens Nucleus ReadyStart V3 0 ~ V2017.02.3 -
Siemens Nucleus Source Code 0 ~ * -
Siemens SIMOTICS CONNECT 400 All versions < V0.3.0.330 -
Siemens TALON TC Compact (BACnet) 0 ~ V3.5.3 -
Siemens TALON TC Modular (BACnet) 0 ~ V3.5.3 -

II. Public POCs for CVE-2019-13939

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III. Intelligence Information for CVE-2019-13939

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Vendor Advisories for CVE-2019-13939 (5)

Same Patch Batch · Siemens · 2020-01-16 · 3 CVEs total

CVE-2019-10934 Siemens TIA Portal 路径遍历漏洞
CVE-2019-13933 Siemens Scalance X-200系列和Scalance X-300系列访问控制错误漏洞

IV. Related Vulnerabilities

Same vendor: Siemens
Same weakness: CWE-20

V. Comments for CVE-2019-13939

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