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CVE-2021-42338— 4MOSAn GCB Doctor - Improper Authorization

Quick assessment

Affected
4MOSAn GCB Doctor
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.

Radiant Tech 4Mosan Gcb Doctor（政府共通组态设定与检测）是中国睿明知通（Radiant Tech）公司的用于有效控制个人电脑遭受骇客入侵的管道，降低资安事件。 Radiant Tech 4MOSAn GCB Doctor 存在授权问题漏洞，未经身份验证的远程攻击者通过向cookie中注入代码的方式绕过身份验证，通过上传和执行任意文件来任意操纵系统或中断服务。

CVSS 9.8 · Critical EPSS 5.63% · P92
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I. Basic Information for CVE-2021-42338

Vulnerability Information
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Vulnerability Title
4MOSAn GCB Doctor - Improper Authorization
Source: CVE Program / CVE List V5
Vulnerability Description
4MOSAn GCB Doctor’s login page has improper validation of Cookie, which allows an unauthenticated remote attacker to bypass authentication by code injection in cookie, and arbitrarily manipulate the system or interrupt services by upload and execution of arbitrary files.
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
授权机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Radiant Tech 4Mosan Gcb Doctor 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Radiant Tech 4Mosan Gcb Doctor（政府共通组态设定与检测）是中国睿明知通（Radiant Tech）公司的用于有效控制个人电脑遭受骇客入侵的管道，降低资安事件。 Radiant Tech 4MOSAn GCB Doctor 存在授权问题漏洞，未经身份验证的远程攻击者通过向cookie中注入代码的方式绕过身份验证，通过上传和执行任意文件来任意操纵系统或中断服务。
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
4MOSAn GCB Doctor unspecified ~ 20210708(v2.0) -

II. Public POCs for CVE-2021-42338

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III. Intelligence Information for CVE-2021-42338

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IV. Related Vulnerabilities

Same product: GCB Doctor
Same vendor: 4MOSAn
Same weakness: CWE-285

V. Comments for CVE-2021-42338

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