CVE-2018-21225 : What You Need to Know
Learn about CVE-2018-21225 affecting various NETGEAR devices. Understand the impact, affected systems, exploitation mechanism, and mitigation steps to prevent command injection.
A variety of NETGEAR devices are susceptible to command injection when accessed by an authorized user.
Understanding CVE-2018-21225
What is CVE-2018-21225?
Certain NETGEAR devices are affected by command injection by an authenticated user. This vulnerability impacts models such as D7000, D7800, D8500, R6700, R6700v2, R6800, R6900, R6900P, R6900v2, R7000, R7000P, R7500v2, R7800, R8300, R8500, and R9000.
The Impact of CVE-2018-21225
This vulnerability has a CVSS base score of 6.8, with high impacts on confidentiality, integrity, and availability.
Technical Details of CVE-2018-21225
Vulnerability Description
A variety of NETGEAR devices are susceptible to command injection when accessed by an authorized user.
Affected Systems and Versions
- D7000 (versions prior to 1.0.1.60)
- D7800 (versions prior to 1.0.1.34)
- D8500 (versions prior to 1.0.3.39)
- R6700 (versions prior to 1.0.1.30)
- R6700v2 (versions prior to 1.2.0.16)
- R6800 (versions prior to 1.2.0.16)
- R6900 (versions prior to 1.0.1.30)
- R6900P (versions prior to 1.2.0.22)
- R6900v2 (versions prior to 1.2.0.16)
- R7000 (versions prior to 1.0.9.12)
- R7000P (versions prior to 1.2.0.22)
- R7500v2 (versions prior to 1.0.3.20)
- R7800 (versions prior to 1.0.2.44)
- R8300 (versions prior to 1.0.2.106)
- R8500 (versions prior to 1.0.2.106)
- R9000 (versions prior to 1.0.2.52)
Exploitation Mechanism
The vulnerability allows an authenticated user to execute arbitrary commands on the affected NETGEAR devices.
Mitigation and Prevention
Immediate Steps to Take
- Update the firmware to the latest patched versions.
- Restrict network access to authorized users only.
- Monitor network traffic for any suspicious activities.
Long-Term Security Practices
- Regularly update firmware and security patches.
- Implement strong password policies and multi-factor authentication.
- Conduct regular security audits and penetration testing.
Patching and Updates
Ensure that all affected NETGEAR devices are updated to the latest firmware versions to mitigate the command injection vulnerability.