CVE-2020-1816 Explained : Impact and Mitigation

Huawei NIP6800 and Secospace USG6600/USG9500 devices are affected by a Denial of Service (DoS) vulnerability due to improper handling of specific IPSEC packets.

Understanding CVE-2020-1816

This CVE involves a vulnerability that can be exploited remotely by attackers to disrupt the IPSec function of affected devices.

What is CVE-2020-1816?

CVE-2020-1816 is a Denial of Service (DoS) vulnerability that impacts Huawei NIP6800 and Secospace USG6600/USG9500 devices.

The Impact of CVE-2020-1816

The vulnerability allows remote attackers to send crafted IPSEC packets to affected devices, potentially causing abnormal IPSec functionality.

Technical Details of CVE-2020-1816

The technical details of the vulnerability are as follows:

Vulnerability Description

Devices affected: Huawei NIP6800 and Secospace USG6600/USG9500
Vulnerable versions: V500R001C30, V500R001C60SPC500, V500R005C00, V500R001C30SPC200, V500R001C30SPC600, V500R001C60SPC500
Attack type: Denial of Service (DoS) via specially crafted IPSEC packets

Affected Systems and Versions

Huawei NIP6800: V500R001C30, V500R001C60SPC500, V500R005C00
Secospace USG6600, USG9500: V500R001C30SPC200, V500R001C30SPC600, V500R001C60SPC500, V500R005C00

Exploitation Mechanism

The vulnerability is exploited by sending specific IPSEC packets to vulnerable devices remotely.

Mitigation and Prevention

To secure the affected devices, follow these steps:

Immediate Steps to Take

Apply vendor-provided patches promptly
Implement network-level security measures
Monitor traffic for any suspicious activities

Long-Term Security Practices

Regularly update and patch all network devices
Conduct security training for network administrators
Implement access controls and segmentation

Patching and Updates

Check for and apply security patches from Huawei
Monitor for official security advisories and updates