CVE-2021-1164 : Exploit Details and Defense Strategies
Discover how CVE-2021-1164 impacts Cisco Small Business RV Series Routers. Learn about the vulnerability, its technical details, impacts, and mitigation steps for protection.
Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV Series Routers could allow an authenticated, remote attacker to execute arbitrary code or cause a denial of service. Cisco has not released software updates to address these vulnerabilities.
Understanding CVE-2021-1164
This CVE pertains to security flaws in the web-based management interface of Cisco Small Business RV Series Routers, allowing attackers to execute arbitrary code or trigger unexpected restarts.
What is CVE-2021-1164?
The CVE-2021-1164 vulnerability occurs due to improper validation of user-supplied input in the routers' web-based management interface. By sending crafted HTTP requests, an attacker with valid administrator credentials could exploit this flaw and execute code or cause a denial of service.
The Impact of CVE-2021-1164
With a CVSS base score of 7.2 (High Severity), this vulnerability poses a significant threat. Successful exploitation could lead to arbitrary code execution with high impacts on confidentiality, integrity, and availability.
Technical Details of CVE-2021-1164
This section covers crucial technical details about the CVE.
Vulnerability Description
The vulnerability allows remote attackers to execute arbitrary code or trigger device restarts by sending manipulated HTTP requests through the web-based management interface.
Affected Systems and Versions
The issue affects Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers.
Exploitation Mechanism
To exploit this vulnerability, attackers need valid administrator credentials to send crafted HTTP requests to the affected device.
Mitigation and Prevention
Understand how to mitigate and prevent exploitation of CVE-2021-1164.
Immediate Steps to Take
In the absence of a software update from Cisco, restrict access to the affected devices, monitor network traffic for signs of exploitation, and implement strong credential management.
Long-Term Security Practices
Regularly monitor Cisco's security advisories and promptly apply patches once released. Follow best practices for secure device management and consider deploying additional security measures.
Patching and Updates
Stay informed about Cisco's security updates and ensure the timely application of patches to protect against CVE-2021-1164.