CVE-2021-1171 Explained : Impact and Mitigation
Learn about CVE-2021-1171 impacting Cisco Small Business RV Series routers, allowing remote execution of arbitrary code and denial of service attacks. Understand the technical details and mitigation strategies.
Cisco Small Business RV Series routers are affected by multiple vulnerabilities in the web-based management interface, potentially allowing remote attackers to execute arbitrary code or cause denial of service (DoS) conditions.
Understanding CVE-2021-1171
This CVE relates to vulnerabilities in the Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers, posing a threat of remote command execution and DoS attacks.
What is CVE-2021-1171?
CVE-2021-1171 involves improper validation of user-supplied input in the routers' web-based management interface, enabling attackers to exploit this flaw by sending crafted HTTP requests. Successful exploitation can lead to arbitrary code execution or device restart.
The Impact of CVE-2021-1171
These vulnerabilities have a high severity rating, with a CVSS base score of 7.2. An authenticated attacker could gain root access to the device's operating system or disrupt services by forcing the device to reload.
Technical Details of CVE-2021-1171
The following technical aspects are essential to understand this CVE:
Vulnerability Description
The vulnerabilities stem from improper input validation in the web-based management interface, offering a gateway for attackers to execute malicious commands.
Affected Systems and Versions
Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers are impacted by these vulnerabilities and require immediate attention.
Exploitation Mechanism
Attackers with valid administrator credentials can exploit these vulnerabilities by sending tailored HTTP requests to the affected devices.
Mitigation and Prevention
It's crucial to take immediate actions and adopt robust security practices to safeguard against CVE-2021-1171.
Immediate Steps to Take
Ensure restricting access to the routers' management interfaces and implementing strong, unique administrator credentials to mitigate risks.
Long-Term Security Practices
Regularly monitor vendor advisories and apply security updates promptly once released to maintain a secure operational environment.
Patching and Updates
As of now, Cisco has not issued software updates to address these vulnerabilities. Stay informed through the Cisco advisory link provided to access updates once available.