CVE-2017-17221 Explained : Impact and Mitigation

Huawei eSpace 7950 and eSpace 8950 products are affected by a security vulnerability allowing remote code execution.

Understanding CVE-2017-17221

What is CVE-2017-17221?

The vulnerability exists in the Import Signal Tone function of Huawei eSpace 7950 V200R003C30, eSpace 8950 V200R003C00, and V200R003C30 versions, enabling an authenticated remote attacker to execute arbitrary code.

The Impact of CVE-2017-17221

The vulnerability allows attackers to send specially crafted packets to the affected products after uploading Signal Tone, potentially leading to remote code execution.

Technical Details of CVE-2017-17221

Vulnerability Description

The Import Signal Tone function in Huawei eSpace 7950 and eSpace 8950 versions is susceptible to remote code execution.

Affected Systems and Versions

Affected products: eSpace 7950, eSpace 8950
Vulnerable versions: eSpace 7950 V200R003C30, eSpace 8950 V200R003C00, V200R003C30

Exploitation Mechanism

An authenticated remote attacker can exploit the vulnerability by sending specially crafted packets to the affected products after uploading Signal Tone.

Mitigation and Prevention

Immediate Steps to Take

Apply the vendor-recommended patches and updates promptly.
Implement network segmentation to restrict access to vulnerable systems.

Long-Term Security Practices

Regularly monitor and update security configurations.
Conduct security assessments and penetration testing to identify and address vulnerabilities.

Patching and Updates

Stay informed about security advisories from Huawei and apply patches as soon as they are released.