CVE-2017-17251 Explained : Impact and Mitigation

A vulnerability in Huawei products could allow an attacker to exploit a null pointer dereference vulnerability in the H323 protocol.

Understanding CVE-2017-17251

This CVE identifies a security issue in various Huawei devices that could be leveraged by malicious actors to cause a process crash.

What is CVE-2017-17251?

The vulnerability enables attackers to exploit a null pointer dereference flaw in the H323 protocol by sending malformed packets to affected Huawei products.

The Impact of CVE-2017-17251

The insufficient validation of these packets could lead to a crash of the affected process, potentially disrupting the normal operation of the devices.

Technical Details of CVE-2017-17251

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

Vulnerability Description

The vulnerability allows for a null pointer dereference in the H323 protocol, which can be triggered by sending specially crafted packets to the affected Huawei products.

Affected Systems and Versions

Products: AR120-S, AR1200, AR150, AR160, AR200, AR2200, AR3200, AR3600, AR510, DP300, IPS Module, NGFW Module, NIP6300, NIP6600, NIP6800, NetEngine16EX, RSE6500, SRG1300, SRG2300, SRG3300, SVN5600, SVN5800, SVN5800-C, SeMG9811, Secospace USG6300, Secospace USG6500, Secospace USG6600, TE30, TE40, TE50, TE60, TP3106, TP3206, USG6000V, USG9500, USG9520, USG9560, USG9580, VP9660, ViewPoint 8660, ViewPoint 9030
Vendor: Huawei Technologies Co., Ltd.
Versions: Detailed version information provided in the data.

Exploitation Mechanism

The vulnerability can be exploited by creating and transmitting malformed packets to the affected Huawei products, taking advantage of the lack of proper packet validation.

Mitigation and Prevention

To address CVE-2017-17251, users and organizations should take immediate and long-term security measures.

Immediate Steps to Take

Apply security patches provided by Huawei promptly.
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 software and firmware on Huawei devices.
Conduct security assessments and penetration testing to identify and address vulnerabilities.
Educate users and administrators about safe practices and security protocols.

Patching and Updates

Ensure that all affected Huawei products are updated with the latest patches and firmware releases to mitigate the risk of exploitation.