CVE-2021-1414 : Exploit Details and Defense Strategies
Learn about CVE-2021-1414 involving multiple vulnerabilities in Cisco RV Series routers that allow remote code execution. Understand the impact, technical details, and mitigation steps.
This article provides an overview of CVE-2021-1414, which involves multiple vulnerabilities in the Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers that could be exploited by remote attackers to execute arbitrary code with elevated privileges.
Understanding CVE-2021-1414
CVE-2021-1414 pertains to a series of flaws in the web-based management interface of Cisco RV Series routers that could allow attackers to remotely run arbitrary code with escalated privileges equivalent to the web service process on the compromised device.
What is CVE-2021-1414?
The vulnerabilities in the Cisco RV Series routers could be leveraged by authenticated, remote attackers to execute arbitrary code on affected devices through crafted HTTP requests due to improper validation of HTTP traffic.
The Impact of CVE-2021-1414
Exploiting these vulnerabilities could lead to remote code execution on the targeted devices, giving attackers unauthorized access and control over the routers.
Technical Details of CVE-2021-1414
This section delves into the technical aspects of CVE-2021-1414, outlining the vulnerability description, affected systems and versions, and the exploitation mechanism.
Vulnerability Description
The vulnerabilities stem from inadequate validation of HTTP requests in the web-based management interface of Cisco RV340, RV340W, RV345, and RV345P routers, allowing attackers to execute arbitrary code remotely.
Affected Systems and Versions
The affected systems include Cisco Small Business RV Series Router Firmware with a status of 'affected' and version 'n/a'.
Exploitation Mechanism
Attackers can exploit these vulnerabilities by sending specially crafted HTTP requests to the web-based management interface of the affected routers, enabling remote code execution with elevated privileges.
Mitigation and Prevention
In this section, we cover the steps to mitigate and prevent the exploitation of CVE-2021-1414 on Cisco RV Series routers.
Immediate Steps to Take
- Apply security updates released by Cisco to address the vulnerabilities and prevent potential exploitation by threat actors.
Long-Term Security Practices
- Regularly monitor Cisco advisories and security updates to stay informed about patches and mitigation strategies for known vulnerabilities.
Patching and Updates
- Ensure that the routers are updated with the latest firmware and security patches provided by Cisco to mitigate the risks associated with CVE-2021-1414.