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CVE-2021-4097— CRLF Injection in phpservermon/phpservermon

Quick assessment

Affected
phpservermon phpservermon/phpservermon
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.

phpservermon是一个脚本，用于检查您的网站和服务器是否已启动并正在运行。 phpservermon 存在注入漏洞，目前尚无此漏洞的相关信息，请随时关注CNNVD或厂商公告。

AI Predicted 6.1 Difficulty: Easy EPSS 0.84% · P55

Possible ATT&CK Techniques 1 AI

T1133 · External Remote Services
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I. Basic Information for CVE-2021-4097

Vulnerability Information
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Vulnerability Title
CRLF Injection in phpservermon/phpservermon
Source: CVE Program / CVE List V5
Vulnerability Description
phpservermon is vulnerable to Improper Neutralization of CRLF Sequences
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
对CRLF序列的转义处理不恰当(CRLF注入)
Source: CVE Program / CVE List V5
Vulnerability Title
phpservermon 注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
phpservermon是一个脚本，用于检查您的网站和服务器是否已启动并正在运行。 phpservermon 存在注入漏洞，目前尚无此漏洞的相关信息，请随时关注CNNVD或厂商公告。
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
phpservermon phpservermon/phpservermon unspecified ~ 3.6.0 -

II. Public POCs for CVE-2021-4097

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2021-4097

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Patches & Fixes for CVE-2021-4097 (1)

Vendor Advisories for CVE-2021-4097 (1)

IV. Related Vulnerabilities

Same weakness: CWE-93

V. Comments for CVE-2021-4097

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