CVE-2021-21728 : Security Advisory and Response
Discover how CVE-2021-21728 in ZTE ZXA10 C300M could impact system processing capabilities. Learn about affected versions and steps to mitigate this configuration error vulnerability.
A ZTE product, ZXA10 C300M, has been found to have a configuration error vulnerability that could be exploited by attackers to consume system processing resources.
Understanding CVE-2021-21728
This CVE identifies a security flaw in the ZTE ZXA10 C300M product that allows attackers to impact system processing capabilities.
What is CVE-2021-21728?
The vulnerability is due to a configuration error in the product, which leaves a certain port open by default. Attackers can exploit this by sending a large number of packets to the port, leading to a reduction in system processing capabilities.
The Impact of CVE-2021-21728
Successful exploitation of this vulnerability can result in a significant degradation of system processing capabilities on affected ZTE ZXA10 C300M devices.
Technical Details of CVE-2021-21728
This section provides more detailed technical information about the CVE.
Vulnerability Description
The vulnerability stems from a configuration error in the ZTE ZXA10 C300M product, allowing attackers to consume system processing resources by flooding a specific port with packets.
Affected Systems and Versions
The vulnerability affects all versions of the ZTE ZXA10 C300M product up to V4.3P8.
Exploitation Mechanism
Attackers exploit this vulnerability by sending a large number of packets to a default open port in the ZTE ZXA10 C300M product, thereby reducing system processing capabilities.
Mitigation and Prevention
Protecting systems from CVE-2021-21728 requires immediate action and long-term security practices.
Immediate Steps to Take
Organizations using the ZXA10 C300M product should implement firewall rules to block unauthorized packets targeting the vulnerable port.
Long-Term Security Practices
Regularly updating firmware and monitoring network traffic can help prevent similar vulnerabilities from being exploited in the future.
Patching and Updates
ZTE may release patches or updates to address the configuration error vulnerability in the ZXA10 C300M product.