CNVD-2021-43984 Scanner

MPSec ISG1000 Security Gateway is a network security appliance developed by MP Communications Technology Co., Ltd., designed to protect corporate environments from unauthorized access and data breaches. The device is commonly used by enterprises looking for robust security management solutions, offering traffic monitoring, firewalls, and threat management features. Its user-friendly interface makes it accessible for IT departments handling network security. The product's capability to manage and secure traffic is critical for organizations that require reliable and scalable security solutions. It helps organizations prevent data loss and unauthorized access, safeguarding sensitive information and systems. Widely adopted across various sectors, its comprehensive security policies and logging capabilities ensure compliance with industry standards.

The Arbitrary File Download vulnerability identified in MPSec ISG1000 Security Gateway poses significant risks as it allows unauthorized users to download sensitive files. This type of vulnerability can lead to the exposure of confidential data and system files, potentially compromising the security of entire networks. Exploiting this loophole doesn’t necessitate authentication, thereby broadening the threat landscape and increasing susceptibility. Attackers can exploit this vulnerability by crafting specific requests to download arbitrary files from the server. The impact of such a breach is considerable, granting attackers potential access to sensitive information without needing privileged access. Effective mitigation strategies are crucial to preventing exploitation and securing system integrity.

The Arbitrary File Download vulnerability in MPSec ISG1000 Security Gateway allows exploitation through the system's file download mechanisms. The vulnerable endpoint "/webui/?g=sys_dia_data_down&file_name=" is used to perform this download action, with the 'file_name' parameter being manipulated to access unintended files. Serialization flaws and lack of input validation are primary causes, enabling directory traversal attacks. Successful exploitation might result in unauthorized access to files typically reserved for system administrators. Detection mechanisms typically involve analyzing server responses and changes in session data indicating file access. Identifying these security misconfigurations is essential to safeguard against unauthorized data extraction and ensure data protection.

Exploiting this vulnerability can result in attackers obtaining confidential files, leading to severe security breaches and organizational data loss. When attackers access sensitive files such as password files or configuration settings, they can further exploit other vulnerabilities, leading to a larger scale cyberattack. Beyond data confidentiality risks, misuse of trusted identities through harvested information can lead to unauthorized transactions or data manipulations. Organizations may face significant financial and reputational damage due to these breaches. Moreover, exposed data can result in non-compliance with regulatory standards, leading to potential legal consequences. System instability and unauthorized system access are further risks that stem from this vulnerability.

REFERENCES

• https://www.cnvd.org.cn/flaw/show/CNVD-2021-43984
• https://github.com/chaitin/xray/blob/master/pocs/mpsec-isg1000-file-read.yml