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CVE-2021-42020

Quick assessment

Affected
Siemens RUGGEDCOM i800
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 RUGGEDCOM是德国西门子（Siemens）公司的一个通信设备。为电力，交通，石油和天然气及其他行业提供快速可靠的通信。 Siemens RUGGEDCOM ROS多个型号存在代码问题漏洞，该漏洞源于TFTP功能中的第三方组件无法检查文件名中是否存在空末端。攻击者可利用该漏洞导致数据损坏，并可能导致应用程序出现硬故障。受影响型号：RUGGEDCOM ROS M2100（版本<V5.6.0）、RUGGEDCOM ROS RMC8388设备（版本<V5.6.0）、RUGGEDCOM ROS

CVSS 7.5 · High EPSS 0.98% · P61
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I. Basic Information for CVE-2021-42020

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been identified in RUGGEDCOM i800, RUGGEDCOM i800NC, RUGGEDCOM i801, RUGGEDCOM i801NC, RUGGEDCOM i802, RUGGEDCOM i802NC, RUGGEDCOM i803, RUGGEDCOM i803NC, RUGGEDCOM M2100, RUGGEDCOM M2100NC, RUGGEDCOM M2200, RUGGEDCOM M2200NC, RUGGEDCOM M969, RUGGEDCOM M969NC, RUGGEDCOM RMC30, RUGGEDCOM RMC30NC, RUGGEDCOM RMC8388 V4.X, RUGGEDCOM RMC8388 V5.X, RUGGEDCOM RMC8388NC V4.X, RUGGEDCOM RMC8388NC V5.X, RUGGEDCOM RP110, RUGGEDCOM RP110NC, RUGGEDCOM RS1600, RUGGEDCOM RS1600F, RUGGEDCOM RS1600FNC, RUGGEDCOM RS1600NC, RUGGEDCOM RS1600T, RUGGEDCOM RS1600TNC, RUGGEDCOM RS400, RUGGEDCOM RS400NC, RUGGEDCOM RS401, RUGGEDCOM RS401NC, RUGGEDCOM RS416, RUGGEDCOM RS416NC, RUGGEDCOM RS416NCv2 V4.X, RUGGEDCOM RS416NCv2 V5.X, RUGGEDCOM RS416P, RUGGEDCOM RS416PNC, RUGGEDCOM RS416PNCv2 V4.X, RUGGEDCOM RS416PNCv2 V5.X, RUGGEDCOM RS416Pv2 V4.X, RUGGEDCOM RS416Pv2 V5.X, RUGGEDCOM RS416v2 V4.X, RUGGEDCOM RS416v2 V5.X, RUGGEDCOM RS8000, RUGGEDCOM RS8000A, RUGGEDCOM RS8000ANC, RUGGEDCOM RS8000H, RUGGEDCOM RS8000HNC, RUGGEDCOM RS8000NC, RUGGEDCOM RS8000T, RUGGEDCOM RS8000TNC, RUGGEDCOM RS900, RUGGEDCOM RS900 (32M) V4.X, RUGGEDCOM RS900 (32M) V5.X, RUGGEDCOM RS900G, RUGGEDCOM RS900G (32M) V4.X, RUGGEDCOM RS900G (32M) V5.X, RUGGEDCOM RS900GNC, RUGGEDCOM RS900GNC(32M) V4.X, RUGGEDCOM RS900GNC(32M) V5.X, RUGGEDCOM RS900GP, RUGGEDCOM RS900GPNC, RUGGEDCOM RS900L, RUGGEDCOM RS900LNC, RUGGEDCOM RS900M-GETS-C01, RUGGEDCOM RS900M-GETS-XX, RUGGEDCOM RS900M-STND-C01, RUGGEDCOM RS900M-STND-XX, RUGGEDCOM RS900MNC-GETS-C01, RUGGEDCOM RS900MNC-GETS-XX, RUGGEDCOM RS900MNC-STND-XX, RUGGEDCOM RS900MNC-STND-XX-C01, RUGGEDCOM RS900NC, RUGGEDCOM RS900NC(32M) V4.X, RUGGEDCOM RS900NC(32M) V5.X, RUGGEDCOM RS900W, RUGGEDCOM RS910, RUGGEDCOM RS910L, RUGGEDCOM RS910LNC, RUGGEDCOM RS910NC, RUGGEDCOM RS910W, RUGGEDCOM RS920L, RUGGEDCOM RS920LNC, RUGGEDCOM RS920W, RUGGEDCOM RS930L, RUGGEDCOM RS930LNC, RUGGEDCOM RS930W, RUGGEDCOM RS940G, RUGGEDCOM RS940GNC, RUGGEDCOM RS969, RUGGEDCOM RS969NC, RUGGEDCOM RSG2100, RUGGEDCOM RSG2100 (32M) V4.X, RUGGEDCOM RSG2100 (32M) V5.X, RUGGEDCOM RSG2100NC, RUGGEDCOM RSG2100NC(32M) V4.X, RUGGEDCOM RSG2100NC(32M) V5.X, RUGGEDCOM RSG2100P, RUGGEDCOM RSG2100P (32M) V4.X, RUGGEDCOM RSG2100P (32M) V5.X, RUGGEDCOM RSG2100PNC, RUGGEDCOM RSG2100PNC (32M) V4.X, RUGGEDCOM RSG2100PNC (32M) V5.X, RUGGEDCOM RSG2200, RUGGEDCOM RSG2200NC, RUGGEDCOM RSG2288 V4.X, RUGGEDCOM RSG2288 V5.X, RUGGEDCOM RSG2288NC V4.X, RUGGEDCOM RSG2288NC V5.X, RUGGEDCOM RSG2300 V4.X, RUGGEDCOM RSG2300 V5.X, RUGGEDCOM RSG2300NC V4.X, RUGGEDCOM RSG2300NC V5.X, RUGGEDCOM RSG2300P V4.X, RUGGEDCOM RSG2300P V5.X, RUGGEDCOM RSG2300PNC V4.X, RUGGEDCOM RSG2300PNC V5.X, RUGGEDCOM RSG2488 V4.X, RUGGEDCOM RSG2488 V5.X, RUGGEDCOM RSG2488NC V4.X, RUGGEDCOM RSG2488NC V5.X, RUGGEDCOM RSG907R, RUGGEDCOM RSG908C, RUGGEDCOM RSG909R, RUGGEDCOM RSG910C, RUGGEDCOM RSG920P V4.X, RUGGEDCOM RSG920P V5.X, RUGGEDCOM RSG920PNC V4.X, RUGGEDCOM RSG920PNC V5.X, RUGGEDCOM RSL910, RUGGEDCOM RSL910NC, RUGGEDCOM RST2228, RUGGEDCOM RST2228P, RUGGEDCOM RST916C, RUGGEDCOM RST916P. The third-party component, in its TFTP functionality fails to check for null terminations in file names. If an attacker were to exploit this, it could result in data corruption, and possibly a hard-fault of the application.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对因果或异常条件的不恰当检查
Source: CVE Program / CVE List V5
Vulnerability Title
Siemens RUGGEDCOM代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Siemens RUGGEDCOM是德国西门子（Siemens）公司的一个通信设备。为电力，交通，石油和天然气及其他行业提供快速可靠的通信。 Siemens RUGGEDCOM ROS多个型号存在代码问题漏洞，该漏洞源于TFTP功能中的第三方组件无法检查文件名中是否存在空末端。攻击者可利用该漏洞导致数据损坏，并可能导致应用程序出现硬故障。受影响型号：RUGGEDCOM ROS M2100（版本<V5.6.0）、RUGGEDCOM ROS RMC8388设备（版本<V5.6.0）、RUGGEDCOM ROS
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 RUGGEDCOM i800 0 ~ V4.3.8 -
Siemens RUGGEDCOM i800NC 0 ~ V4.3.8 -
Siemens RUGGEDCOM i801 0 ~ V4.3.8 -
Siemens RUGGEDCOM i801NC 0 ~ V4.3.8 -
Siemens RUGGEDCOM i802 0 ~ V4.3.8 -
Siemens RUGGEDCOM i802NC 0 ~ V4.3.8 -
Siemens RUGGEDCOM i803 0 ~ V4.3.8 -
Siemens RUGGEDCOM i803NC 0 ~ V4.3.8 -
Siemens RUGGEDCOM M2100 0 ~ V4.3.8 -
Siemens RUGGEDCOM M2100NC 0 ~ V4.3.8 -
Siemens RUGGEDCOM M2200 0 ~ V4.3.8 -
Siemens RUGGEDCOM M2200NC 0 ~ V4.3.8 -
Siemens RUGGEDCOM M969 0 ~ V4.3.8 -
Siemens RUGGEDCOM M969NC 0 ~ V4.3.8 -
Siemens RUGGEDCOM RMC30 0 ~ V4.3.8 -
Siemens RUGGEDCOM RMC30NC 0 ~ V4.3.8 -
Siemens RUGGEDCOM RMC8388 V4.X 0 ~ V4.3.8 -
Siemens RUGGEDCOM RMC8388 V5.X 0 ~ V5.6.0 -
Siemens RUGGEDCOM RMC8388NC V4.X 0 ~ V4.3.8 -
Siemens RUGGEDCOM RMC8388NC V5.X 0 ~ V5.6.0 -
Siemens RUGGEDCOM RP110 0 ~ V4.3.8 -
Siemens RUGGEDCOM RP110NC 0 ~ V4.3.8 -
Siemens RUGGEDCOM RS1600 0 ~ V4.3.8 -
Siemens RUGGEDCOM RS1600F 0 ~ V4.3.8 -
Siemens RUGGEDCOM RS1600FNC 0 ~ V4.3.8 -
Siemens RUGGEDCOM RS1600NC 0 ~ V4.3.8 -
Siemens RUGGEDCOM RS1600T 0 ~ V4.3.8 -
Siemens RUGGEDCOM RS1600TNC 0 ~ V4.3.8 -
Siemens RUGGEDCOM RS400 0 ~ V4.3.8 -
Siemens RUGGEDCOM RS400NC 0 ~ V4.3.8 -

II. Public POCs for CVE-2021-42020

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III. Intelligence Information for CVE-2021-42020

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Vendor Advisories for CVE-2021-42020 (1)

Same Patch Batch · Siemens · 2022-03-08 · 20 CVEs total

CVE-2021-37208 9.6 CRITICAL Siemens RUGGEDCOM 跨站脚本漏洞
CVE-2021-42016 7.5 HIGH Siemens RUGGEDCOM 安全漏洞
CVE-2022-25311 7.3 HIGH Siemens SINEC NMS 安全漏洞
CVE-2022-24281 7.2 HIGH Siemens SINEC NMS SQL注入漏洞
CVE-2022-24282 7.2 HIGH Siemens SINEC NMS 代码问题漏洞
CVE-2022-24309 6.8 MEDIUM Siemens Mendix 安全漏洞
CVE-2021-37209 6.7 MEDIUM Siemens RUGGEDCOM 加密问题漏洞
CVE-2021-42017 5.9 MEDIUM Siemens RUGGEDCOM 安全特征问题漏洞
CVE-2021-42019 5.9 MEDIUM Siemens RUGGEDCOM 输入验证错误漏洞
CVE-2021-42018 5.9 MEDIUM Siemens RUGGEDCOM 缓冲区错误漏洞
CVE-2021-41543 Siemens Climatix Pol909 日志信息泄露漏洞
CVE-2021-41542 Climatix POL909 跨站脚本漏洞
CVE-2021-44478 Siemens Polarion Subversion Webclient 跨站脚本漏洞
CVE-2021-41541 Climatix POL909跨站脚本漏洞
CVE-2022-24408 Siemens SINUMERIK 安全漏洞
CVE-2022-24661 Siemens Simcenter STAR-CCM+ 缓冲区错误漏洞
CVE-2022-26313 Siemens Mendix 访问控制错误漏洞
CVE-2022-26314 Siemens Mendix 安全漏洞
CVE-2022-26317 Siemens Mendix 安全特征问题特征问题漏洞

IV. Related Vulnerabilities

Same product: RUGGEDCOM i800
Same vendor: Siemens
Same weakness: CWE-754

V. Comments for CVE-2021-42020

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