CVE-2019-5255 : What You Need to Know
Learn about CVE-2019-5255, a DoS vulnerability in Huawei products. Understand the impact, affected systems, exploitation method, and mitigation steps to secure your network.
A DoS vulnerability has been identified in various Huawei products, potentially leading to a denial of service situation when exploited.
Understanding CVE-2019-5255
What is CVE-2019-5255?
The CVE-2019-5255 vulnerability involves a Denial of Service (DoS) risk in specific Huawei products due to inadequate message validation.
The Impact of CVE-2019-5255
The vulnerability could allow an attacker to trigger an out-of-bounds read, resulting in a denial of service for the affected service.
Technical Details of CVE-2019-5255
Vulnerability Description
- DoS vulnerability in Huawei products
- Exploitable by sending crafted messages from an FTP client
- Insufficient validation leading to system out-of-bounds read
Affected Systems and Versions
- Products: AP2000, IPS Module, NGFW Module, NIP6300, NIP6600, NIP6800, S5700, SVN5600, SVN5800, and more
- Versions: V200R005C30, V200R006C10, V200R007C20, and numerous others
Exploitation Mechanism
- Attackers can exploit the vulnerability by sending specially crafted messages from an FTP client
Mitigation and Prevention
Immediate Steps to Take
- Apply security patches provided by Huawei
- Monitor network traffic for any suspicious activity
- Implement strong firewall rules and access controls
Long-Term Security Practices
- Regularly update and patch all software and firmware
- Conduct security audits and penetration testing
Patching and Updates
- Check Huawei's security advisories for the latest patches and updates