CVE-2020-15635 : What You Need to Know
Learn about CVE-2020-15635, a critical vulnerability in NETGEAR R6700 routers allowing attackers to execute arbitrary code. Find mitigation steps and prevention measures here.
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700 V1.0.4.84_10.0.58 routers with firmware 1.0.4.84_10.0.58. Authentication is not required to exploit this vulnerability. The flaw exists within the acsd service, resulting from the lack of proper validation of user-supplied data.
Understanding CVE-2020-15635
This CVE identifies a critical vulnerability in NETGEAR R6700 routers that can be exploited by attackers to execute arbitrary code without authentication.
What is CVE-2020-15635?
- Vulnerability Type: Stack-based Buffer Overflow (CWE-121)
- CVSS Base Score: 8.8 (High Severity)
- Attack Vector: Adjacent Network
- Impact: High Confidentiality, Integrity, and Availability
The Impact of CVE-2020-15635
This vulnerability poses a significant risk as attackers can execute malicious code on vulnerable routers, compromising data confidentiality, integrity, and availability.
Technical Details of CVE-2020-15635
This section provides in-depth technical insights into the vulnerability.
Vulnerability Description
The flaw allows attackers to execute code on NETGEAR R6700 routers due to improper validation of user-supplied data in the acsd service.
Affected Systems and Versions
- Affected Product: NETGEAR R6700
- Vulnerable Version: 1.0.4.84_10.0.58
Exploitation Mechanism
Attackers can exploit this vulnerability by sending specially crafted data to the acsd service on TCP port 5916, enabling them to execute arbitrary code.
Mitigation and Prevention
Protecting systems from CVE-2020-15635 requires immediate action and long-term security measures.
Immediate Steps to Take
- Disable remote management if not required
- Implement network segmentation to limit exposure
- Monitor network traffic for suspicious activities
Long-Term Security Practices
- Regularly update firmware and security patches
- Conduct security assessments and penetration testing
- Educate users on safe browsing habits and phishing awareness
Patching and Updates
- Apply the latest firmware updates provided by NETGEAR to address this vulnerability