CVE-2019-5291 Explained : Impact and Mitigation

A vulnerability in certain Huawei products allows attackers to disrupt device functioning by intercepting and modifying packets due to inadequate data authenticity verification.

Understanding CVE-2019-5291

What is CVE-2019-5291?

This CVE describes an insufficient verification of data authenticity vulnerability in specific Huawei products, enabling attackers to manipulate packets exchanged between devices.

The Impact of CVE-2019-5291

The vulnerability permits unauthorized individuals to disrupt the normal operation of targeted devices by tampering with packet contents.

Technical Details of CVE-2019-5291

Vulnerability Description

Attackers can intercept and modify packets between devices due to inadequate data authenticity verification.

Affected Systems and Versions

Products: AR120-S, AR1200, AR150, AR160, AR200, AR2200, AR3200, CloudEngine 12800, NetEngine16EX, S6700, SRG1300, SRG2300, SRG3300
Versions: V200R005C20, V200R006C10, V200R007C00, V200R008C50, V200R005C00, V200R002C10, V200R002C20, V200R008C00, V200R010C00SPC300, V200R010C00SPC600, V200R011C00SPC200

Exploitation Mechanism

Attackers intercept specific packets, modify them, and send the altered packets to the target device, exploiting insufficient verification of packet fields.

Mitigation and Prevention

Immediate Steps to Take

Apply vendor-provided patches promptly to address the vulnerability.
Monitor network traffic for any suspicious activities.

Long-Term Security Practices

Implement network segmentation to limit the impact of potential attacks.
Regularly update and patch systems to prevent exploitation of known vulnerabilities.

Patching and Updates

Regularly check for security advisories from Huawei and apply recommended patches to secure the affected products.