CVE-2019-5280 : What You Need to Know

Huawei CloudLink Phone 7900 in version V600R019C10 is vulnerable to a TLS certificate verification issue, potentially allowing man-in-the-middle attacks.

Understanding CVE-2019-5280

This CVE involves a vulnerability in the SIP TLS module of Huawei CloudLink Phone 7900, impacting version V600R019C10.

What is CVE-2019-5280?

The vulnerability in the TLS certificate verification process of Huawei CloudLink Phone 7900 V600R019C10 allows attackers to exploit the inadequate verification of specific parameters in the TLS server certificate, enabling man-in-the-middle attacks.

The Impact of CVE-2019-5280

Malicious actors can leverage this vulnerability to conduct man-in-the-middle attacks, leading to abnormal registration of affected phones and potentially affecting the availability of IP phones.

Technical Details of CVE-2019-5280

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The vulnerability lies in the inadequate verification of certain parameters within the TLS server certificate, exposing the system to man-in-the-middle attacks.

Affected Systems and Versions

Product: CloudLink Phone 7900
Vendor: Huawei
Vulnerable Version: V600R019C10

Exploitation Mechanism

Attackers can exploit the TLS certificate verification vulnerability to intercept communications and manipulate data, potentially leading to unauthorized access and data compromise.

Mitigation and Prevention

Protecting systems from CVE-2019-5280 requires immediate actions and long-term security measures.

Immediate Steps to Take

Apply vendor-supplied patches or updates promptly to address the vulnerability.
Monitor network traffic for any signs of unauthorized access or suspicious activities.

Long-Term Security Practices

Regularly update and patch all software and firmware to mitigate potential vulnerabilities.
Implement strong encryption protocols and secure communication channels to prevent unauthorized access.

Patching and Updates

Stay informed about security advisories from Huawei and apply relevant patches as soon as they are available to enhance system security.