CVE-2019-5275 : What You Need to Know
Learn about CVE-2019-5275 affecting Huawei USG9500 devices with versions V500R001C30 and V500R001C60. Discover how attackers can exploit a flaw in X.509 implementation for denial of service attacks.
USG9500 devices by Huawei are affected by a vulnerability in versions V500R001C30 and V500R001C60, allowing for a denial of service attack through a flaw in X.509 implementation.
Understanding CVE-2019-5275
This CVE involves a vulnerability in Huawei's USG9500 devices that can be exploited for a denial of service attack.
What is CVE-2019-5275?
The vulnerability in USG9500 devices running versions V500R001C30 and V500R001C60 allows attackers to trigger a heap buffer overflow during certificate decoding, leading to a denial of service attack.
The Impact of CVE-2019-5275
The vulnerability can be exploited by using a malicious certificate to launch a denial of service attack on the affected devices.
Technical Details of CVE-2019-5275
Vulnerability Description
A flaw in the X.509 implementation in USG9500 devices with versions V500R001C30 and V500R001C60 can result in a heap buffer overflow during certificate decoding.
Affected Systems and Versions
- Product: USG9500
- Vendor: Huawei
- Versions: V500R001C30, V500R001C60
Exploitation Mechanism
Attackers can exploit this vulnerability by using a malicious certificate to trigger a denial of service attack.
Mitigation and Prevention
Immediate Steps to Take
- Apply patches provided by Huawei to address the vulnerability.
- Monitor network traffic for any signs of exploitation.
Long-Term Security Practices
- Regularly update and patch all software and firmware on network devices.
- Implement network segmentation to limit the impact of potential attacks.
Patching and Updates
Ensure that all USG9500 devices are updated with the latest firmware and security patches.