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critical·Product Based Web Vulnerabilities·Updated Jan 3, 2024

CVE-2021-21805 Scanner

CVE-2021-21805 scanner - Command Injection vulnerability in Advantech R-SeeNet

Est. Time~10 seconds
Scan TypeSingle Scan
Targetsurl
CostFree
3.4k
Times Used
continuous scan runs
4.8k
Continuously Checked
assets under CS
0
Vulnerabilities Found
confirmed findings
References
CVECVE-2021-21805
9.8
CVSScritical
Exploitable remotely over the internet · no authentication required.

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.

Attack Vector
Network
Privileges Req.
None
User Interaction
None
Affected
Advantechby n/a
Advantech R-SeeNet 2.4.12 (20.10.2020)
Updated Aug 21, 2026View on NVD →
Detail

Advantech R-SeeNet is a software program that allows users to monitor and manage their network devices remotely. It is designed to provide users with real-time visibility and control over their network devices, including routers, switches, and servers. R-SeeNet provides a comprehensive set of features, such as traffic analysis, performance monitoring, and alerting capabilities, making it an essential tool for network administrators. The software is used by businesses of all sizes, from small startups to large enterprises, and is highly regarded for its reliability and ease of use.

The CVE-2021-21805 vulnerability detected in Advantech R-SeeNet v 2.4.12 (20.10.2020) refers to an OS Command Injection vulnerability in the ping.php script functionality. Essentially, a malicious actor could send a specially crafted HTTP request to the program, leading to arbitrary OS command execution. This enables the attacker to gain control over the targeted system and carry out a wide range of activities, such as stealing sensitive data, launching DDoS attacks, or executing malicious code on the system.

When exploited, the CVE-2021-21805 vulnerability can have severe consequences. Attackers can use this vulnerability to gain full control of the system, which can lead to data theft, destruction or espionage. Hackers can also use the system as a launchpad for launching attacks against other systems on the network, which can cause widespread damage and disruption. Moreover, failing to address this vulnerability can lead to legal and regulatory penalties, loss of customer confidence, and financial loss.

As an advertisement, readers should be aware that s4e.io offers pro features that enable users to quickly and easily learn about vulnerabilities in their digital assets. With this platform, users can keep track of their security posture, receive alerts for new vulnerabilities, and learn about the latest threats and security best practices. This comprehensive solution offers a convenient and effective way to stay on top of your organization's security needs and protect your digital assets from attacks.

 

REFERENCES

Solution Advice

There are several precautions that users can take to protect themselves against the CVE-2021-21805 vulnerability in Advantech R-SeeNet. These include:

  • Update your software to the latest version as soon as possible.
  • Implement a strong password policy that ensures passwords are complex, unique, and changed frequently.
  • Apply regular security patches to the system and software.
  • Use antivirus software to scan for and detect potential threats.
  • Educate employees on best practices for protecting against cyberattacks, such as not clicking on suspicious links or attachments.

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CVE-2021-21805 scanner - Command Injection vulnerability in Advantech R-SeeNet | S4E