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CVE-2021-44159— 4MOSAn GCB Doctor - Unrestricted Upload of File

Quick assessment

Affected
4MOSAn GCB Doctor
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.

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。 4MOSAn GCB Doctor 中存在代码问题漏洞，该漏洞源于产品未对上传文件进行权限控制。未登录的攻击者可通过该漏洞上传任意文件导致代码执行或拒绝服务。

CVSS 9.8 · Critical EPSS 3.41% · P88
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I. Basic Information for CVE-2021-44159

Vulnerability Information
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Vulnerability Title
4MOSAn GCB Doctor - Unrestricted Upload of File
Source: CVE Program / CVE List V5
Vulnerability Description
4MOSAn GCB Doctor’s file upload function has improper user privilege control. A remote attacker can upload arbitrary files including webshell files without authentication and execute arbitrary code in order to perform arbitrary system operations or deny of service attack.
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
4MOSAn GCB Doctor 代码问题漏洞
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。 4MOSAn GCB Doctor 中存在代码问题漏洞，该漏洞源于产品未对上传文件进行权限控制。未登录的攻击者可通过该漏洞上传任意文件导致代码执行或拒绝服务。
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 ~ 20210811(2.0) -

II. Public POCs for CVE-2021-44159

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III. Intelligence Information for CVE-2021-44159

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Other References for CVE-2021-44159 (1)

IV. Related Vulnerabilities

Same product: GCB Doctor
Same vendor: 4MOSAn
Same weakness: CWE-434

V. Comments for CVE-2021-44159

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