CVE-2018-21170 : What You Need to Know
Learn about CVE-2018-21170, a critical vulnerability in specific NETGEAR devices allowing unauthenticated attackers to trigger a stack-based buffer overflow. Find mitigation steps and patching details here.
An unauthenticated attacker can exploit a stack-based buffer overflow vulnerability in specific NETGEAR devices. This vulnerability affects EX2700, R7800, WN2000RPTv3, WN3000RPv3, and WN3100RPv2 devices.
Understanding CVE-2018-21170
This CVE involves a critical stack-based buffer overflow vulnerability in certain NETGEAR devices.
What is CVE-2018-21170?
The CVE-2018-21170 vulnerability allows an unauthenticated attacker to trigger a stack-based buffer overflow in specific NETGEAR devices.
The Impact of CVE-2018-21170
- CVSS Base Score: 8.8 (High)
- Severity: High
- Attack Vector: Adjacent Network
- Confidentiality, Integrity, and Availability Impact: High
- Privileges Required: None
- Scope: Unchanged
- This vulnerability poses a significant risk to the affected devices and can lead to unauthorized access and potential system compromise.
Technical Details of CVE-2018-21170
This section provides more in-depth technical insights into the CVE-2018-21170 vulnerability.
Vulnerability Description
The vulnerability is a stack-based buffer overflow that can be exploited by an unauthenticated attacker.
Affected Systems and Versions
The following NETGEAR devices are impacted:
- EX2700 devices before version 1.0.1.28
- R7800 devices before version 1.0.2.40
- WN2000RPTv3 devices before version 1.0.1.20
- WN3000RPv3 devices before version 1.0.2.50
- WN3100RPv2 devices before version 1.0.0.56
Exploitation Mechanism
The vulnerability can be exploited remotely by sending specially crafted packets to the affected devices, triggering the stack-based buffer overflow.
Mitigation and Prevention
To address CVE-2018-21170, immediate actions and long-term security practices are crucial.
Immediate Steps to Take
- Apply security patches provided by NETGEAR for the affected devices.
- Implement network segmentation to limit exposure to potential attackers.
- Monitor network traffic for any suspicious activities.
Long-Term Security Practices
- Regularly update firmware and software to mitigate known vulnerabilities.
- Conduct security assessments and penetration testing to identify and address weaknesses.
Patching and Updates
- NETGEAR has released patches for the affected devices. Ensure timely installation of these patches to secure the devices against CVE-2018-21170.