CVE-2021-21805
Quick assessment
Affected
n/a Advantech
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Advantech R-SeeNet是中国台湾研华（Advantech）公司的一个工业监控软件。该软件基于 snmp 协议进行监控平台，并且适用于 Linux、Windows 平台。 Advantech R-SeeNet存在操作系统命令注入漏洞，该漏洞源于ping.php 的脚本功能。
Public Exploits 1
Nuclei · 1
CVE-2021-21805.yaml [template]
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-21805
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An OS Command Injection vulnerability exists in the ping.php script functionality of Advantech R-SeeNet v 2.4.12 (20.10.2020). A specially crafted HTTP request can lead to arbitrary OS command execution. An attacker can send a crafted HTTP request to trigger this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Advantech R-SeeNet 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Advantech R-SeeNet是中国台湾研华（Advantech）公司的一个工业监控软件。该软件基于 snmp 协议进行监控平台，并且适用于 Linux、Windows 平台。 Advantech R-SeeNet存在操作系统命令注入漏洞，该漏洞源于ping.php 的脚本功能。
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)
Shenlong Deep Dive — AI Deep Analysis
10-question deep dive: root cause, exploitation, mitigation, urgency. Read summary free, full version requires login.
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | Advantech | Advantech R-SeeNet 2.4.12 (20.10.2020) | - |
|
II. Public POCs for CVE-2021-21805
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | Advantech R-SeeNet 2.4.12 is susceptible to remote OS command execution via the ping.php script functionality. An attacker, via a specially crafted HTTP request, can execute malware, obtain sensitive information, modify data, and/or gain full control over a compromised system without entering necessary credentials. | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-21805.yaml | POC Details |
AI-Generated POC
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Other References for CVE-2021-21805 (1)
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https://talosintelligence.com/vulnerability_reports/TALOS-2021-1274 x_refsource_MISC
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IV. Related Vulnerabilities
V. Comments for CVE-2021-21805
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