CVE-2017-17318 : Security Advisory and Response

Huawei MBB (Mobile Broadband) products E5771h-937 with versions before E5771h-937TCPU-V200R001B328D62SP00C1133 and E5771h-937TCPU-V200R001B329D05SP00C1308 have a Denial of Service (DoS) vulnerability that can be exploited by sending a specific http request to the device.

Understanding CVE-2017-17318

This CVE involves a vulnerability in Huawei MBB products E5771h-937 that allows for a DoS attack.

What is CVE-2017-17318?

The vulnerability in Huawei E5771h-937 products enables a Denial of Service (DoS) attack when a malicious user sends a specific http request, causing the device to become unresponsive.

The Impact of CVE-2017-17318

Exploiting this vulnerability allows attackers to carry out DoS attacks, disrupting the normal functioning of the affected device.

Technical Details of CVE-2017-17318

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability in Huawei E5771h-937 products occurs when a malicious user sends a specific http request, leading to excessive memory consumption by the webserver process and rendering the device unresponsive.

Affected Systems and Versions

Affected Product: E5771h-937
Vendor: Huawei Technologies Co., Ltd.
Vulnerable Versions: E5771h-937TCPU-V200R001B328D62SP00C1133 and E5771h-937TCPU-V200R001B329D05SP00C1308

Exploitation Mechanism

Attackers exploit the vulnerability by sending a specific http request to the device, triggering excessive memory usage by the webserver process and causing a DoS condition.

Mitigation and Prevention

Protecting systems from CVE-2017-17318 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply vendor-supplied patches promptly to mitigate the vulnerability.
Implement network-level protections to filter out potentially malicious http requests.
Monitor device performance for signs of unusual memory consumption.

Long-Term Security Practices

Regularly update and patch all software and firmware to address known vulnerabilities.
Conduct security assessments and penetration testing to identify and remediate potential weaknesses.
Educate users and administrators on best practices for secure device configuration and usage.

Patching and Updates

Huawei may release patches to address the vulnerability; ensure timely installation to secure the affected devices.