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CVE-2021-27428— GE UR family Unrestricted Upload of File with Dangerous Type

Quick assessment

Affected
GE UR family
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.

GE Grid Solutions UR是法国 （GE Grid Solutions）公司的一个嵌入式操作系统。提供高性能保护，可扩展的I / O，集成的监视和计量，高速通信以及广泛的编程和配置功能。 GE Grid Solutions UR 存在代码问题漏洞，该漏洞允许非法用户可以在没有适当特权的情况下升级固件。

CVSS 9.8 · Critical EPSS 1.21% · P67

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-27428

Vulnerability Information
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Vulnerability Title
GE UR family Unrestricted Upload of File with Dangerous Type
Source: CVE Program / CVE List V5
Vulnerability Description
GE UR IED firmware versions prior to version 8.1x supports upgrading firmware using UR Setup configuration tool – Enervista UR Setup. This UR Setup tool validates the authenticity and integrity of firmware file before uploading the UR IED. An illegitimate user could upgrade firmware without appropriate privileges. The weakness is assessed, and mitigation is implemented in firmware Version 8.10.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
Source: CVE Program / CVE List V5
Vulnerability Title
GE Grid Solutions UR 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GE Grid Solutions UR是法国 （GE Grid Solutions）公司的一个嵌入式操作系统。提供高性能保护，可扩展的I / O，集成的监视和计量，高速通信以及广泛的编程和配置功能。 GE Grid Solutions UR 存在代码问题漏洞，该漏洞允许非法用户可以在没有适当特权的情况下升级固件。
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
GE UR family unspecified ~ 8.1x -

II. Public POCs for CVE-2021-27428

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III. Intelligence Information for CVE-2021-27428

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Vendor Advisories for CVE-2021-27428 (1)

Other References for CVE-2021-27428 (1)

Same Patch Batch · GE · 2022-03-23 · 7 CVEs total

CVE-2021-27426 9.8 CRITICAL GE UR family insecure default variable initialization
CVE-2021-27430 8.4 HIGH GE UR family hardcoded credentials
CVE-2021-27422 7.5 HIGH GE UR family exposure of sensitive information to an unauthorized actor
CVE-2021-27418 5.3 MEDIUM GE UR family input validation
CVE-2021-27420 5.3 MEDIUM GE UR family input validation
CVE-2021-27424 5.3 MEDIUM GE UR family exposure of sensitive information to an unauthorized actor

IV. Related Vulnerabilities

Same product: UR family
Same vendor: GE
Same weakness: CWE-434

V. Comments for CVE-2021-27428

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