CVE-2021-42540— Emerson WirelessHART Gateway
Quick assessment
Affected
Emerson WirelessHART Gateway
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.
Emerson WirelessHART Gateway是美国Emerson公司的一种无线网关。 Emerson WirelessHART Gateway 存在安全漏洞，该漏洞源于受影响的产品容易受到未经消毒的系统配置解压文件夹的攻击。攻击者可利用该漏洞使得低权限用户覆盖设置和其他关键功能。
Possible ATT&CK Techniques 1 AI
T1222.001 · Windows Permissions
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I. Basic Information for CVE-2021-42540
Vulnerability Information
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Vulnerability Title
Emerson WirelessHART Gateway
Source: CVE Program / CVE List V5
Vulnerability Description
The affected product is vulnerable to a unsanitized extract folder for system configuration. A low-privileged user can leverage this logic to overwrite the settings and other key functionality.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
任意地址可写任意内容条件
Source: CVE Program / CVE List V5
Vulnerability Title
Emerson WirelessHART Gateway 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Emerson WirelessHART Gateway是美国Emerson公司的一种无线网关。 Emerson WirelessHART Gateway 存在安全漏洞，该漏洞源于受影响的产品容易受到未经消毒的系统配置解压文件夹的攻击。攻击者可利用该漏洞使得低权限用户覆盖设置和其他关键功能。
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 |
|---|---|---|---|---|
| Emerson | WirelessHART Gateway | 1410 ~ 4.7.94 | - |
|
II. Public POCs for CVE-2021-42540
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2021-42540 (1)
-
https://us-cert.cisa.gov/ics/advisories/icsa-21-278-02 x_refsource_CONFIRM
Same Patch Batch · Emerson · 2021-10-22 · 6 CVEs total
| CVE-2021-38485 | 8.0 HIGH | Emerson WirelessHART Gateway |
| CVE-2021-42536 | 8.0 HIGH | Emerson WirelessHART Gateway |
| CVE-2021-42538 | 8.0 HIGH | Emerson WirelessHART Gateway |
| CVE-2021-42539 | 8.0 HIGH | Emerson WirelessHART Gateway |
| CVE-2021-42542 | 8.0 HIGH | Emerson WirelessHART Gateway |
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V. Comments for CVE-2021-42540
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