CVE-2021-45557 : Vulnerability Insights and Analysis
Learn about CVE-2021-45557, a command injection vulnerability affecting certain NETGEAR devices with a high severity impact. Find out how to mitigate and prevent potential risks effectively.
Certain NETGEAR devices are affected by command injection vulnerability, impacting various models such as GC108P, GS108Tv3, GS110TPv3, and more.
Understanding CVE-2021-45557
What is CVE-2021-45557?
NETGEAR devices suffer from command injection by an authenticated user, affecting multiple models with specific firmware versions.
The Impact of CVE-2021-45557
This vulnerability has a CVSS base score of 7.5, classified as HIGH severity. The attack complexity is HIGH, with potential integrity and availability impacts.
Technical Details of CVE-2021-45557
Vulnerability Description
An authenticated user can exploit this flaw for command injection, leading to unauthorized actions within affected devices.
Affected Systems and Versions
- GC108P before 1.0.8.2
- GS108Tv3 before 7.0.7.2
- GS110TPv3 before 7.0.7.2
- GS716TPP before 1.0.4.2
- Other models and versions as specified.
Exploitation Mechanism
- Attack Vector: ADJACENT_NETWORK
- Privileges Required: HIGH
- Scope: CHANGED
- User Interaction: NONE
Mitigation and Prevention
Immediate Steps to Take
- Update devices to the latest firmware version.
- Restrict network access to vulnerable devices.
Long-Term Security Practices
- Implement strict authentication controls.
- Regularly monitor for unauthorized access attempts.
Patching and Updates
Regularly check for security advisories from NETGEAR and apply patches promptly.