CVE-2017-18764 : Exploit Details and Defense Strategies

Command injection by an unauthenticated attacker has been found to affect certain models of NETGEAR devices.

Understanding CVE-2017-18764

Certain NETGEAR devices are vulnerable to command injection by an unauthenticated attacker.

What is CVE-2017-18764?

CVE-2017-18764 is a vulnerability that allows an unauthenticated attacker to execute commands on specific NETGEAR device models.

The Impact of CVE-2017-18764

CVSS Score: 8.8 (High)
Attack Vector: Adjacent Network
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High
Privileges Required: None
Scope: Unchanged
This vulnerability poses a significant risk to the confidentiality, integrity, and availability of the affected devices.

Technical Details of CVE-2017-18764

Certain technical aspects of the vulnerability are as follows:

Vulnerability Description

Command injection vulnerability

Affected Systems and Versions

The following NETGEAR device models are affected:
D6100 (version 1.0.0.55 and earlier)
D7000 (version 1.0.1.50 and earlier)
D7800 (version 1.0.1.28 and earlier)
JNR1010v2 (version 1.1.0.44 and earlier)
JR6150 (version 1.0.1.10 and earlier)
JWNR2010v5 (version 1.1.0.44 and earlier)
PR2000 (version 1.0.0.18 and earlier)
R6050 (version 1.0.1.10 and earlier)
R6100 (version 1.0.1.14 and earlier)
R6120 (version 1.0.0.30 and earlier)
R6220 (version 1.1.0.50 and earlier)
R6700v2 (version 1.2.0.4 and earlier)
R6800 (version 1.2.0.4 and earlier)
R6900v2 (version 1.2.0.4 and earlier)
R7500 (version 1.0.0.110 and earlier)
R7500v2 (version 1.0.3.20 and earlier)
R7800 (version 1.0.2.36 and earlier)
R9000 (version 1.0.2.52 and earlier)
WN3000RPv3 (version 1.0.2.50 and earlier)
WNDR3700v4 (version 1.0.2.88 and earlier)
WNDR3700v5 (version 1.1.0.48 and earlier)
WNDR4300v1 (version 1.0.2.90 and earlier)
WNDR4300v2 (version 1.0.0.48 and earlier)
WNDR4500v3 (version 1.0.0.48 and earlier)
WNR1000v4 (version 1.1.0.44 and earlier)
WNR2000v5 (version 1.0.0.58 and earlier)
WNR2020 (version 1.1.0.44 and earlier)
WNR2050 (version 1.1.0.44 and earlier)

Exploitation Mechanism

Attack Complexity: Low
User Interaction: None
Vector String: CVSS:3.0/AC:L/AV:A/A:H/C:H/I:H/PR:N/S:U/UI:N

Mitigation and Prevention

Steps to mitigate and prevent exploitation of CVE-2017-18764:

Immediate Steps to Take

Update affected devices to the latest firmware versions
Implement network segmentation to limit exposure
Monitor network traffic for suspicious activity

Long-Term Security Practices

Regularly update firmware and security patches
Conduct security audits and penetration testing

Patching and Updates

NETGEAR has released patches to address this vulnerability