CVE-2021-1179 : Exploit Details and Defense Strategies
Learn about CVE-2021-1179 affecting Cisco Small Business RV Series Routers. Details on remote code execution and denial of service risks posed by the vulnerabilities.
Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers could allow an authenticated, remote attacker to execute arbitrary code or cause an affected device to restart unexpectedly.
Understanding CVE-2021-1179
This CVE describes multiple vulnerabilities in Cisco Small Business RV Series Router Firmware that could be exploited by an attacker to execute arbitrary code or trigger remote restarts.
What is CVE-2021-1179?
The vulnerabilities in the web-based management interface of Cisco routers can be abused by authenticated remote attackers to run code or cause device restarts.
The Impact of CVE-2021-1179
If successfully exploited, these vulnerabilities could lead to arbitrary code execution with root user privileges or device reloads, resulting in a denial of service (DoS) condition.
Technical Details of CVE-2021-1179
The following technical details are associated with CVE-2021-1179:
Vulnerability Description
The vulnerabilities stem from improper validation of user-supplied input in the routers' web-based management interface, allowing attackers to craft HTTP requests to execute code or induce device restarts.
Affected Systems and Versions
The vulnerabilities impact Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers with specific firmware versions.
Exploitation Mechanism
Attackers with valid administrator credentials can exploit these vulnerabilities by sending specially crafted HTTP requests to the targeted device.
Mitigation and Prevention
To secure systems against CVE-2021-1179, consider the following measures:
Immediate Steps to Take
Ensure network administrators change default credentials, monitor network traffic, and restrict access to the affected routers.
Long-Term Security Practices
Regular security assessments, timely software updates, and training on secure configurations can enhance overall network security.
Patching and Updates
Cisco is yet to release software updates addressing these vulnerabilities. Stay informed on security bulletins and apply patches as soon as they are made available.