CVE-2021-1147 : Vulnerability Insights and Analysis
Discover the impact of CVE-2021-1147, multiple vulnerabilities in Cisco Small Business RV Series Routers' web interface that enable remote attackers to execute commands with root privileges.
Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV Series Routers could allow a remote attacker to inject arbitrary commands with root privileges. Learn about the impact, technical details, and mitigation strategies.
Understanding CVE-2021-1147
This CVE involves multiple vulnerabilities in the web-based management interface of Cisco Small Business RV Series Routers, enabling attackers to execute arbitrary commands with root privileges.
What is CVE-2021-1147?
The vulnerability allows remote attackers to inject arbitrary commands through the web-based management interface, potentially leading to the execution of malicious code with root access on the system.
The Impact of CVE-2021-1147
With a CVSS base score of 7.2 (High), the vulnerability poses a significant risk by allowing attackers to execute commands with elevated privileges, compromising system confidentiality, integrity, and availability.
Technical Details of CVE-2021-1147
The vulnerability arises due to improper validation of user input in the web interface, affecting Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers.
Vulnerability Description
Attackers can craft HTTP requests to send malicious commands to the targeted device, exploiting the lack of input validation and potentially gaining root access on the underlying OS.
Affected Systems and Versions
The vulnerability affects the Cisco Small Business RV Series Routers running the firmware versions specified by the vendor.
Exploitation Mechanism
To exploit this vulnerability, attackers need valid administrator credentials on the targeted device to send crafted HTTP requests.
Mitigation and Prevention
It is crucial to take immediate steps to secure vulnerable systems and implement long-term security practices.
Immediate Steps to Take
Ensure restricted access to the management interface, monitor network traffic for any suspicious activities, and apply vendor security updates once available.
Long-Term Security Practices
Regularly update router firmware, enforce strong password policies, conduct security audits, and educate users about safe browsing practices.
Patching and Updates
Cisco is yet to release software updates addressing the vulnerabilities. Stay informed about security advisories from the vendor to apply patches promptly.