CVE-2021-1318 : Security Advisory and Response
Learn about CVE-2021-1318, a critical vulnerability in Cisco Small Business RV Series Routers that allows remote attackers to execute arbitrary commands with root privileges. Find out the impact, affected systems, and mitigation steps.
This CVE article discusses the vulnerabilities in the Cisco Small Business RV Series Routers that could allow an attacker to execute arbitrary commands with root privileges through the web-based management interface.
Understanding CVE-2021-1318
This section provides insights into the nature of the CVE-2021-1318 vulnerability.
What is CVE-2021-1318?
The CVE-2021-1318 involves multiple vulnerabilities in the web-based management interface of Cisco Small Business RV Series Routers. These vulnerabilities could be exploited by a remote attacker to inject arbitrary commands with root privileges.
The Impact of CVE-2021-1318
The impact of the CVE-2021-1318 vulnerability is high, with a CVSS base score of 7.2. An attacker could execute arbitrary code as the root user on the underlying operating system by exploiting these vulnerabilities.
Technical Details of CVE-2021-1318
In this section, we delve into the technical aspects of the CVE-2021-1318 vulnerability.
Vulnerability Description
The vulnerabilities arise due to improper validation of user-supplied input in the web-based management interface. An attacker could send crafted HTTP requests to the device, leading to the execution of arbitrary code with root privileges.
Affected Systems and Versions
The affected systems include Cisco Small Business RV016, RV042, RV042G, RV082, RV320, and RV325 Routers. The specific affected versions are not available.
Exploitation Mechanism
To exploit these vulnerabilities, an authenticated remote attacker would need valid administrator credentials on an affected device. By sending crafted HTTP requests, the attacker could inject arbitrary commands.
Mitigation and Prevention
This section outlines the steps to mitigate and prevent the exploitation of CVE-2021-1318.
Immediate Steps to Take
Users are advised to apply security updates provided by Cisco to patch the vulnerabilities. Additionally, enforce strong administrator credentials to reduce the risk of exploitation.
Long-Term Security Practices
Regularly update the firmware of the affected routers and monitor Cisco's security advisories for any new vulnerabilities or patches.
Patching and Updates
Stay informed about security updates and patches released by Cisco. Promptly apply these patches to secure the web-based management interface of the devices.