CVE-2018-7933 : Security Advisory and Response

Huawei home gateway products HiRouter-CD20 and WS5200 have a path traversal vulnerability in versions before HiRouter-CD20-10 1.9.6 and WS5200-10 1.9.6. Attackers can exploit this by tricking users into installing malicious APK plugins, leading to potential code execution or privilege escalation.

Understanding CVE-2018-7933

This CVE involves a path traversal vulnerability in Huawei's HiRouter-CD20 and WS5200 home gateway products.

What is CVE-2018-7933?

The vulnerability allows attackers to overwrite files on affected devices by exploiting the lack of validation during the installation of APK plugins.

The Impact of CVE-2018-7933

If successfully exploited, this vulnerability can result in arbitrary code execution or privilege escalation on the compromised devices.

Technical Details of CVE-2018-7933

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability is related to path traversal in the affected Huawei home gateway products.

Affected Systems and Versions

Products: HiRouter-CD20, WS5200
Vendor: Huawei Technologies Co., Ltd.
Vulnerable Versions: HiRouter-CD20-10 versions before 1.9.6, WS5200-10 versions before 1.9.6

Exploitation Mechanism

Attackers deceive users into installing malicious APK plugins
Malicious plugins can overwrite any file on the affected devices

Mitigation and Prevention

Protecting against CVE-2018-7933 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update affected devices to versions HiRouter-CD20-10 1.9.6 and WS5200-10 1.9.6
Avoid installing untrusted APK plugins

Long-Term Security Practices

Regularly update firmware and security patches
Educate users on safe installation practices

Patching and Updates

Huawei may release patches to address the vulnerability