H3C ER8300G2-X routers are advanced networking devices widely used in enterprise environments for managing and routing network traffic. They are typically deployed by IT professionals and network administrators to ensure efficient data flow and secure connectivity within business networks. The device is favored for its robust performance and capability to handle a significant volume of data transfers, making it suitable for medium to large-sized organizations. With its comprehensive management interface, network operators can configure and monitor network settings, ensure high availability, and reinforce security policies. The router supports a range of security features designed to protect the network from unauthorized access and cyber threats, playing a critical role in enterprise network infrastructures. However, like all network hardware, it requires regular updates and management to mitigate vulnerabilities and maintain security integrity.
The credential disclosure vulnerability in H3C ER8300G2-X enables unauthorized individuals to access sensitive information, such as configured usernames and passwords, from the router's management interface. This type of vulnerability compromises the confidentiality of the network and allows malicious actors to potentially gain unauthorized access. The issue arises due to inadequate access control mechanisms, allowing the retrieval of hidden configuration files that contain passwords. This can be particularly damaging in an enterprise environment where network security is critical. Once exploited, attackers can use the leaked credentials to manipulate network settings, intercept data, or further proliferate through the network. Addressing this vulnerability is crucial to maintaining the security posture of organizations relying on these devices.
Technical details of the vulnerability involve the router's management system page login interface, where the password can be accessed due to incorrect access control implementation. Attackers exploit this by sending a crafted URL that leads to the retrieval of the ER8300G2-X configuration file containing sensitive credentials. The HTTP request used in this exploitation does not require authentication, exploiting vulnerable endpoints such as `/userLogin.asp/../actionpolicy_status/../ER8300G2-X.cfg`. This lack of authentication and control oversight is a significant security flaw, as it provides a pathway for attackers to harvest sensitive information stored within the device. Addressing the vulnerability involves changing access controls and preventing unauthorized file access.
When exploited, the credential disclosure vulnerability could lead to unauthorized access to the H3C ER8300G2-X device, allowing attackers to compromise network security settings. This could result in disruptions to network operations, unauthorized data access, and potential financial and reputational damages. Attackers might leverage disclosed passwords to further penetrate the network, conduct surveillance, or implant malicious software. The exploitation of this vulnerability poses severe risks to data confidentiality and the overall security infrastructure of businesses relying on stable network operations. Effective mitigation is essential to prevent malicious exploitation and maintain robust security measures.
REFERENCES
- https://nvd.nist.gov/vuln/detail/CVE-2024-32238
- https://cvefeed.io/vuln/detail/CVE-2024-32238
- https://github.com/asdfjkl11/CVE-2024-32238/issues/1
- https://www.h3c.com/cn/Products_And_Solution/InterConnect/Products/Routers/Products/Enterprise/ER/ER8300G2-X/
- https://github.com/FuBoLuSec/CVE-2024-32238
- Ensure the router firmware is updated to the latest version provided by H3C to patch known vulnerabilities.
- Configure strong, unique passwords for both device management and network access, changing them regularly to prevent unauthorized access.
- Implement robust network access controls to limit access to management interfaces from trusted IP ranges only.
- Utilize network monitoring tools to detect and alert on any unauthorized access attempts or configuration file retrievals.
- Consider deploying additional layers of security such as VPNs for remote access and applying strict firewall rules.
- Conduct regular security audits and vulnerability assessments to identify and address potential security weaknesses.
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