CVE-2019-5285 : What You Need to Know

Certain switches in Huawei's S series have been identified to possess a vulnerability related to Denial of Service (DoS) attacks. This vulnerability can be exploited by an unauthorized remote attacker who sends specially designed packets to the targeted device. As a result of inadequate verification of these packets, successful exploitation of the vulnerability has the potential to cause the device to reboot, leading to a DoS condition. This vulnerability has been assigned the identification number HWPSIRT-2019-03109.

Understanding CVE-2019-5285

This CVE involves a DoS vulnerability in Huawei S series switches that can be exploited by sending crafted packets to the affected device.

What is CVE-2019-5285?

The vulnerability in Huawei S series switches allows an unauthenticated remote attacker to trigger a DoS condition by sending malicious packets, causing the device to reboot.

The Impact of CVE-2019-5285

Successful exploitation can lead to a denial of service (DoS) condition on the affected device.

Technical Details of CVE-2019-5285

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability allows unauthorized remote attackers to exploit the device by sending specially crafted packets.

Affected Systems and Versions

Affected products include S12700, S1700, S2300, S2700, S5300, S5700, S600-E, S6300, S6700, S7700, S7900, S9300, S9300X, S9700.
Specific affected versions for each product are listed in the data.

Exploitation Mechanism

An unauthenticated remote attacker can exploit the vulnerability by sending malicious packets to the device, causing it to reboot.

Mitigation and Prevention

Here are the steps to mitigate and prevent exploitation of this vulnerability.

Immediate Steps to Take

Apply patches provided by Huawei to address the vulnerability.
Implement network segmentation to limit the impact of potential attacks.
Monitor network traffic for any suspicious activity.

Long-Term Security Practices

Regularly update and patch all network devices to protect against known vulnerabilities.
Conduct security assessments and audits to identify and address potential weaknesses.

Patching and Updates

Stay informed about security advisories from Huawei and apply patches promptly to secure the network.