CVE-2020-27009
Quick assessment
Affected
Siemens APOGEE PXC Compact (BACnet)
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Siemens TALON Series是德国西门子（Siemens）公司的一个开放系统。使控制器和应用程序在单个平台上运行，同时彼此互操作。 多款Siemens产品存在缓冲区错误漏洞，攻击者可利用该漏洞在上下文中执行任意代码。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2020-27009
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 PXC Compact (BACnet) (All versions < V3.5.5), APOGEE PXC Compact (P2 Ethernet) (All versions < V2.8.20), APOGEE PXC Modular (BACnet) (All versions < V3.5.5), APOGEE PXC Modular (P2 Ethernet) (All versions < V2.8.20), Nucleus NET (All versions < V5.2), Nucleus Source Code (Versions including affected DNS modules), TALON TC Compact (BACnet) (All versions < V3.5.5), TALON TC Modular (BACnet) (All versions < V3.5.5). The DNS domain name record decompression functionality does not properly validate the pointer offset values. The parsing of malformed responses could result in a write past the end of an allocated structure. An attacker with a privileged position in the network could leverage this vulnerability to execute code in the context of the current process or cause a denial-of-service condition.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用越界的指针偏移
Source: CVE Program / CVE List V5
Vulnerability Title
多款Siemens产品 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Siemens TALON Series是德国西门子（Siemens）公司的一个开放系统。使控制器和应用程序在单个平台上运行，同时彼此互操作。 多款Siemens产品存在缓冲区错误漏洞，攻击者可利用该漏洞在上下文中执行任意代码。
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 | APOGEE PXC Compact (BACnet) | All versions < V3.5.5 | - |
|
| Siemens | APOGEE PXC Compact (P2 Ethernet) | All versions < V2.8.20 | - |
|
| Siemens | APOGEE PXC Modular (BACnet) | All versions < V3.5.5 | - |
|
| Siemens | APOGEE PXC Modular (P2 Ethernet) | All versions < V2.8.20 | - |
|
| Siemens | Nucleus NET | All versions < V5.2 | - |
|
| Siemens | Nucleus Source Code | Versions including affected DNS modules | - |
|
| Siemens | TALON TC Compact (BACnet) | All versions < V3.5.5 | - |
|
| Siemens | TALON TC Modular (BACnet) | All versions < V3.5.5 | - |
|
II. Public POCs for CVE-2020-27009
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|---|
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Vendor Advisories for CVE-2020-27009 (2)
Same Patch Batch · Siemens · 2021-04-22 · 19 CVEs total
| CVE-2020-25244 | 8.4 HIGH | Siemens LOGO! Soft Comfort 代码问题漏洞 |
| CVE-2020-15795 | 8.1 HIGH | 多款siemens产品 缓冲区错误漏洞 |
| CVE-2021-25664 | 7.5 HIGH | Siemens Nucleus 安全漏洞 |
| CVE-2021-25663 | 7.5 HIGH | Siemens Nucleus 安全漏洞 |
| CVE-2020-27737 | 6.5 MEDIUM | 多款siemens产品 缓冲区错误漏洞 |
| CVE-2020-27736 | 6.5 MEDIUM | 多款siemens产品 缓冲区错误漏洞 |
| CVE-2020-27738 | 6.5 MEDIUM | 多款siemens产品 缓冲区错误漏洞 |
| CVE-2021-25677 | 5.3 MEDIUM | 多款Siemens产品 安全特征问题漏洞 |
| CVE-2020-25243 | 5.1 MEDIUM | Siemens LOGO! Soft Comfort 路径遍历漏洞 |
| CVE-2021-27393 | Nucleus ReadyStart安全特征问题漏洞 | |
| CVE-2021-27392 | Siemens Open Network Bridge 信任管理问题漏洞 | |
| CVE-2021-27389 | Siemens Digital Industries Software Opcenter Quality 安全漏洞 | |
| CVE-2021-25668 | Siemens Web Server缓冲区错误漏洞 | |
| CVE-2021-25669 | Siemens Web Server 缓冲区错误漏洞 | |
| CVE-2021-27382 | Siemens Solid Edge 缓冲区错误漏洞 | |
| CVE-2021-25678 | Siemens Solid Edge 缓冲区错误漏洞 | |
| CVE-2020-26997 | Siemens Solid Edge 安全漏洞 | |
| CVE-2021-25670 | siemens Tecnomatix RobotExpert 缓冲区错误漏洞 |
IV. Related Vulnerabilities
Same vendor: Siemens
Same weakness: CWE-823
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V. Comments for CVE-2020-27009
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