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CVE-2021-33842— Circutor SGE-PLC1000 improper authentication

Quick assessment

Affected
Circutor SGE-PLC1000
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.

Circutor SGE-PLC1000是一个智能计量系统的设备。主要功能是通过CIRWATT电表或其他采用PRIME技术的电表管理市电。 Circutor SGE-PLC1000 固件版本 0.9.2b中存在安全漏洞，该漏洞源于cookie参数认证不当，攻击者可利用该漏洞通过认证并进行操作。

CVSS 8.8 · High EPSS 0.43% · P35
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I. Basic Information for CVE-2021-33842

Vulnerability Information
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Vulnerability Title
Circutor SGE-PLC1000 improper authentication
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Authentication vulnerability in the cookie parameter of Circutor SGE-PLC1000 firmware version 0.9.2b allows an attacker to perform operations as an authenticated user. In order to exploit this vulnerability, the attacker must be within the network where the device affected is located.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
在信任Cookie未进行验证与完整性检查
Source: CVE Program / CVE List V5
Vulnerability Title
Circutor SGE-PLC1000授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Circutor SGE-PLC1000是一个智能计量系统的设备。主要功能是通过CIRWATT电表或其他采用PRIME技术的电表管理市电。 Circutor SGE-PLC1000 固件版本 0.9.2b中存在安全漏洞，该漏洞源于cookie参数认证不当，攻击者可利用该漏洞通过认证并进行操作。
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
Circutor SGE-PLC1000 0.9.2b -

II. Public POCs for CVE-2021-33842

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III. Intelligence Information for CVE-2021-33842

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Other References for CVE-2021-33842 (1)

IV. Related Vulnerabilities

Same product: SGE-PLC1000
Same vendor: Circutor
Same weakness: CWE-565

V. Comments for CVE-2021-33842

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