AVCON6 Arbitrary File Download Scanner

The AVCON6 system management platform is widely used for efficient administration and management of network resources within organizations. It is particularly useful for IT administrators to centrally manage various network devices and applications. AVCON6 provides comprehensive capabilities for system configuration, monitoring, and management, which are crucial for ensuring seamless organizational operations. The platform supports integration with other enterprise systems, enhancing its usability for larger organizations. Its flexible architecture allows for customization according to specific enterprise needs, making it versatile for different deployment scenarios. The platform is essential for maintaining communication infrastructure and operational readiness within enterprise environments.

The Arbitrary File Download vulnerability in AVCON6 can allow unauthorized users to download sensitive files from the server. Such vulnerabilities occur when the system fails to properly validate user inputs, allowing attackers to exploit this oversight. The vulnerability specifically affects the 'org_execl_download.action' component of AVCON6. By crafting a malicious request, attackers can access and retrieve files that they should not have permissions to access. This type of exploit is particularly concerning when it affects sensitive files that may contain critical information. The ability to perform arbitrary file downloads poses a significant security risk to affected systems.

In AVCON6, the vulnerability is triggered by making HTTP GET requests to the 'org_execl_download.action' endpoint with a manipulated 'filename' parameter. By using directory traversal sequences (e.g., '../../../../'), attackers can navigate through file directories to download files outside the intended scope. The system incorrectly processes these requests and returns the specified files, compromising file confidentiality. The request also involves checking that the response includes specific headers and body content, confirming a successful exploit if certain conditions are met. This technical detail underscores the importance of allowing only sanitized inputs to avoid such exploits.

Exploiting this vulnerability can lead to unauthorized disclosure of sensitive information, such as system files, user credentials, or confidential documents stored on the server. This could result in compromise of personal or corporate data and potential legal implications for data breaches. Additionally, a successful attack could lead to further exploits, as attackers could use downloaded information to expand their reach within the network or cause additional damage. Organizations with compromised systems can face significant reputational damage and financial losses. Therefore, addressing this vulnerability is critical to maintaining the integrity and security of the system.

REFERENCES

• https://github.com/Threekiii/Awesome-POC/blob/master/Web%E5%BA%94%E7%94%A8%E6%BC%8F%E6%B4%9E/AVCON6%20%E7%B3%BB%E7%BB%9F%E7%AE%A1%E7%90%86%E5%B9%B3%E5%8F%B0%20org_execl_download.action%20%E4%BB%BB%E6%84%8F%E6%96%87%E4%BB%B6%E4%B8%8B%E8%BD%BD%E6%BC%8F%E6%B4%9E.md