CVE-2018-21134 : Exploit Details and Defense Strategies
Learn about CVE-2018-21134, a vulnerability in certain NETGEAR devices allowing unauthenticated attackers to trigger a stack-based buffer overflow. Find out affected models and mitigation steps.
An unauthenticated attacker can exploit a stack-based buffer overflow vulnerability in certain NETGEAR devices affecting various models.
Understanding CVE-2018-21134
What is CVE-2018-21134?
CVE-2018-21134 is a vulnerability that allows an unauthenticated attacker to trigger a stack-based buffer overflow in specific NETGEAR devices.
The Impact of CVE-2018-21134
This vulnerability has a CVSS base score of 6.8, indicating a medium severity issue with high confidentiality impact.
Technical Details of CVE-2018-21134
Vulnerability Description
The vulnerability allows attackers to exploit a stack-based buffer overflow in NETGEAR devices.
Affected Systems and Versions
- Models affected include R6700, R7900, R6900, R7000P, R6900P, R6250, R6300v2, R6400, R6400v2, R7000, R7100LG, R7300, R8000, R8000P, R7900P, R8500, R8300, WN2500RPv2, EX3700, EX3800, EX6000, EX6100, EX6120, EX6130, EX6150v1, EX6200, EX7000, D7000v2, D6220, D6400, and D8500.
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Adjacent Network
- Privileges Required: Low
- User Interaction: None
Mitigation and Prevention
Immediate Stepseveral to Take
- Apply security patches provided by NETGEAR for the affected models.
- Disable remote management if not needed.
- Monitor network traffic for any suspicious activity.
Long-Term Security Practices
- Regularly update firmware and software on all network devices.
- Implement strong network segmentation and access controls.
Patching and Updates
- Regularly check for firmware updates from NETGEAR and apply them promptly.