CVE-2021-45556 Explained : Impact and Mitigation
Learn about CVE-2021-45556 impacting NETGEAR devices with a high severity rating. Find affected models and versions, mitigation steps, and prevention measures.
Certain NETGEAR devices are affected by command injection by an authenticated user. This vulnerability impacts various NETGEAR models including GS108Tv2, GS110TPP, GS110TPv2, GS110TPv3, GS308T, GS310TP, GS724TPP, GS724TPv2, GS728TPPv2, GS728TPv2, GS752TPP, GS752TPv2, MS510TXM, and MS510TXUP.
Understanding CVE-2021-45556
What is CVE-2021-45556?
CVE-2021-45556 is a vulnerability found in certain NETGEAR devices that allows an authenticated user to perform command injection.
The Impact of CVE-2021-45556
The impact of this vulnerability is rated as high severity with a CVSS base score of 7.5. It can result in high availability and integrity impact, although the confidentiality impact is low.
Technical Details of CVE-2021-45556
Vulnerability Description
The vulnerability allows an authenticated user to inject commands into affected NETGEAR devices, potentially leading to unauthorized actions.
Affected Systems and Versions
The following NETGEAR models are affected by this vulnerability:
- GS108Tv2 before 5.4.2.36
- GS110TPP before 7.0.7.2
- GS110TPv2 before 5.4.2.36
- GS110TPv3 before 7.0.7.2
- GS308T before 1.0.3.2
- GS310TP before 1.0.3.2
- GS724TPP before 2.0.6.3
- GS724TPv2 before 2.0.6.3
- GS728TPPv2 before 6.0.8.2
- GS728TPv2 before 6.0.8.2
- GS752TPP before 6.0.8.2
- GS752TPv2 before 6.0.8.2
- MS510TXM before 1.0.4.2
- MS510TXUP before 1.0.4.2
Exploitation Mechanism
The vulnerability requires a high level of privileges from the authenticated user to successfully execute command injections on the affected devices.
Mitigation and Prevention
Immediate Steps to Take
- Users should update their devices to the latest firmware versions provided by NETGEAR.
- Implement strong access controls and restrict privileged user access.
Long-Term Security Practices
- Regularly monitor network traffic for suspicious activities.
- Conduct security audits and penetration testing to identify vulnerabilities.
Patching and Updates
- Apply security patches as soon as they are released by NETGEAR to address this vulnerability.