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CVE-2021-23394— Remote Code Execution (RCE)

CVSS 8.1 · High EPSS 76.85% · P99
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I. Basic Information for CVE-2021-23394

Vulnerability Information
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Vulnerability Title
Remote Code Execution (RCE)
Source: NVD (National Vulnerability Database)
Vulnerability Description
The package studio-42/elfinder before 2.1.58 are vulnerable to Remote Code Execution (RCE) via execution of PHP code in a .phar file. NOTE: This only applies if the server parses .phar files as PHP.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
studio-42/elfinder 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
studio-42/elfinder是一个开源的web文件管理器。 Studio-42 Elfinder 中存在代码问题漏洞，该漏洞源于服务器在将.phar解析成php时发生错误。攻击者可通过该漏洞给引起代码远程执行。以下产品及型号会受到影响：Studio-42 Elfinder 2.1.58 之前版本。
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)

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Affected Products

VendorProductAffected VersionsCPESubscribe
-studio-42/elfinder unspecified ~ 2.1.58 -

II. Public POCs for CVE-2021-23394

#POC DescriptionSource LinkShenlong Link
1studio-42/elfinder before 2.1.58 contains a remote code execution caused by execution of PHP code in a .phar file, letting attackers execute arbitrary PHP code if the server parses .phar files as PHP, exploit requires server to parse .phar files as PHP. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-23394.yamlPOC Details
2Docker container to setup a vulnerable elfinder version on both nginx and apache servers. Can be used to test vulnerability POChttps://github.com/0xnemian/CVE-2021-23394POC Details
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III. Intelligence Information for CVE-2021-23394

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IV. Related Vulnerabilities

Same vendor: n/a

V. Comments for CVE-2021-23394

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