CVE-2021-1163 : Security Advisory and Response

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 denial of service (DoS) conditions.

Understanding CVE-2021-1163

This CVE details the issues within the Cisco Small Business RV series routers that could lead to severe security risks.

What is CVE-2021-1163?

CVE-2021-1163 encompasses multiple vulnerabilities in the web-based management interface of Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers. These vulnerabilities could be exploited by remote attackers with valid credentials to execute arbitrary code or trigger unexpected device restarts.

The Impact of CVE-2021-1163

The impact of this CVE is significant as it could allow attackers to gain root access to the underlying operating system, leading to severe data breaches and potential disruptions in device functionality.

Technical Details of CVE-2021-1163

This section covers the technical aspects of the vulnerabilities, affected systems, and exploitation mechanisms.

Vulnerability Description

The vulnerabilities are a result of improper validation of user-supplied input in the web-based management interface. Attackers can exploit these flaws by sending crafted HTTP requests, allowing them to run arbitrary code or cause device reloads.

Affected Systems and Versions

Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers are affected by these vulnerabilities, posing a serious threat to devices leveraging these firmware versions.

Exploitation Mechanism

To exploit CVE-2021-1163, an attacker needs valid administrator credentials to interact with the web-based management interface, enabling them to carry out malicious actions.

Mitigation and Prevention

It is crucial to take immediate steps to mitigate the risks posed by CVE-2021-1163 and implement long-term security practices.

Immediate Steps to Take

Given the absence of software updates from Cisco to address these vulnerabilities, it is recommended to restrict access to the affected routers, change default credentials, and monitor for any suspicious activities.

Long-Term Security Practices

In the long run, organizations should ensure regular security audits, apply patches promptly upon release, and educate users on safe cybersecurity practices to prevent similar exploits.

Patching and Updates

Users are advised to regularly check for updates from Cisco and apply patches as soon as they are made available to safeguard their network infrastructure and sensitive data.