CVE-2021-1190 : What You Need to Know
Learn about CVE-2021-1190 addressing multiple vulnerabilities in Cisco Small Business RV Series Routers. Find out how attackers could execute arbitrary code or cause denial of service.
Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV Series Routers could allow remote attackers to execute arbitrary code or cause a denial of service. Cisco is yet to release software updates to address these security flaws.
Understanding CVE-2021-1190
This CVE addresses multiple vulnerabilities in Cisco Small Business RV Series Routers that could be exploited by authenticated remote attackers to execute arbitrary code or disrupt device operations.
What is CVE-2021-1190?
The vulnerabilities in the web-based management interface of Cisco RV Series Routers stem from improper input validation. Attackers could send crafted HTTP requests to exploit these flaws and gain root access to the device.
The Impact of CVE-2021-1190
Successful exploitation of these vulnerabilities could allow attackers to execute arbitrary code as the root user or cause the affected device to reload, resulting in a denial of service condition.
Technical Details of CVE-2021-1190
Cisco Small Business RV Series Routers are affected by these vulnerabilities, allowing attackers to execute arbitrary code or trigger restarts.
Vulnerability Description
The vulnerabilities result from improper validation of user input in the web-based management interface, enabling attackers to send malicious requests and gain unauthorized access.
Affected Systems and Versions
The affected products include Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers with unaddressed software versions.
Exploitation Mechanism
Attackers with valid administrator credentials can craft and send HTTP requests to exploit these vulnerabilities.
Mitigation and Prevention
Cisco has not released patches for CVE-2021-1190. Users are advised to take immediate steps to secure their devices and follow long-term security practices.
Immediate Steps to Take
Users should restrict network access to the management interface, monitor for unauthorized access, and apply updates once available.
Long-Term Security Practices
Regularly monitor Cisco's security advisories, implement strong authentication mechanisms, and maintain secure configurations.
Patching and Updates
Cisco is expected to release software updates addressing these vulnerabilities. Users should promptly apply patches when they become available.