CVE-2019-5254 : Exploit Details and Defense Strategies

A vulnerability exists in various Huawei products, potentially allowing an attacker to execute an out-of-bounds read attack. The flaw could be exploited by a logged-in attacker to manipulate messages or interfere with inter-process message packets, leading to abnormal behavior on the affected board.

Understanding CVE-2019-5254

This CVE details an out-of-bounds read vulnerability in multiple Huawei products.

What is CVE-2019-5254?

The CVE-2019-5254 vulnerability involves an out-of-bounds read issue in Huawei products, enabling unauthorized access to sensitive information.

The Impact of CVE-2019-5254

The vulnerability could be leveraged by an attacker with access to the board to disrupt normal operations and potentially compromise the affected systems.

Technical Details of CVE-2019-5254

This section provides technical insights into the CVE-2019-5254 vulnerability.

Vulnerability Description

The vulnerability allows an attacker to perform an out-of-bounds read attack on Huawei products, leading to potential data exposure and system compromise.

Affected Systems and Versions

Products: AP2000, IPS Module, NGFW Module, NIP6300, NIP6600, NIP6800, S5700, SVN5600, SVN5800, SVN5800-C, SeMG9811, Secospace AntiDDoS8000, Secospace USG6300, Secospace USG6500, Secospace USG6600, USG6000V, eSpace U1981
Vulnerable Versions: V200R005C30, V200R006C10, V200R006C20, V200R007C10, V200R007C20, V200R008C00, and more

Exploitation Mechanism

The vulnerability can be exploited by an authenticated attacker to send manipulated messages or interfere with inter-process message packets, potentially causing abnormal behavior on the affected board.

Mitigation and Prevention

Protecting systems from CVE-2019-5254 requires immediate actions and long-term security measures.

Immediate Steps to Take

Apply vendor-supplied patches promptly to address the vulnerability.
Monitor network traffic for any signs of exploitation.
Restrict access to vulnerable systems to authorized personnel only.

Long-Term Security Practices

Conduct regular security assessments and penetration testing to identify vulnerabilities proactively.
Implement network segmentation to limit the impact of potential attacks.
Educate users and administrators on best security practices to prevent unauthorized access.

Patching and Updates

Regularly check for security advisories and updates from Huawei to patch known vulnerabilities.
Keep systems up to date with the latest firmware and security patches to mitigate risks effectively.