CVE-2020-9101 Explained : Impact and Mitigation
Learn about CVE-2020-9101, an out-of-bounds write vulnerability in Huawei products. Understand the impact, affected systems, and mitigation steps to secure your network.
A vulnerability exists in various Huawei products that could allow an attacker to execute an out-of-bounds write attack, potentially leading to a process reboot.
Understanding CVE-2020-9101
This CVE details an out-of-bounds write vulnerability affecting multiple Huawei products.
What is CVE-2020-9101?
The vulnerability allows an unauthenticated attacker to send specially crafted packets to affected products, exploiting insufficient packet validation and potentially causing a process reboot.
The Impact of CVE-2020-9101
The vulnerability could be exploited by attackers to disrupt the normal operation of the affected products, leading to potential service interruptions or system crashes.
Technical Details of CVE-2020-9101
This section provides technical insights into the vulnerability.
Vulnerability Description
The vulnerability is an out-of-bounds write issue that arises due to insufficient validation of packets sent to the affected Huawei products.
Affected Systems and Versions
The following Huawei products and versions are impacted:
- IPS Module versions V500R005C00, V500R005C10
- NGFW Module versions V500R005C00, V500R005C10
- Secospace USG6300 versions V500R001C30, V500R001C60, V500R005C00, V500R005C10
- Secospace USG6500 versions V500R001C30, V500R001C60, V500R005C00, V500R005C10
- Secospace USG6600 versions V500R001C30, V500R001C60, V500R005C00, V500R005C10
- USG9500 versions V500R001C30, V500R001C60, V500R005C00, V500R005C10
Exploitation Mechanism
Attackers can exploit this vulnerability by crafting malicious packets with specific parameters and sending them to the affected products, triggering the out-of-bounds write condition.
Mitigation and Prevention
To address CVE-2020-9101, follow these mitigation strategies:
Immediate Steps to Take
- Apply patches provided by Huawei promptly.
- Implement network segmentation to limit the impact of potential attacks.
- Monitor network traffic for any signs of malicious activity.
Long-Term Security Practices
- Regularly update and patch all software and firmware on the affected products.
- Conduct security assessments and penetration testing to identify and address vulnerabilities.
Patching and Updates
- Stay informed about security advisories from Huawei and apply patches as soon as they are released.