CVE-2021-1287 : Vulnerability Insights and Analysis
Learn about CVE-2021-1287, a critical vulnerability in Cisco Small Business RV Series Router Firmware that allows remote command execution and denial of service attacks on affected devices. Find out about the impacts, technical details, and mitigation steps.
A vulnerability in the web-based management interface of Cisco RV132W ADSL2+ Wireless-N VPN Routers and Cisco RV134W VDSL2 Wireless-AC VPN Routers could allow an authenticated, remote attacker to execute arbitrary code or cause a denial of service on affected devices.
Understanding CVE-2021-1287
This CVE details a critical vulnerability in Cisco Small Business RV Series Router Firmware that enables remote command execution and denial of service attacks.
What is CVE-2021-1287?
The vulnerability allows an authenticated attacker to execute arbitrary code or cause the device to restart unexpectedly by exploiting the lack of proper validation in the web-based management interface.
The Impact of CVE-2021-1287
Successful exploitation could result in the execution of arbitrary code as the root user or a DoS condition, leading to serious consequences for affected devices.
Technical Details of CVE-2021-1287
This section dives deeper into the technical aspects of the vulnerability.
Vulnerability Description
The issue arises due to inadequate validation of user-supplied input in the web-based management interface, enabling attackers to send crafted HTTP requests to execute malicious code.
Affected Systems and Versions
Cisco RV132W ADSL2+ Wireless-N VPN Routers and Cisco RV134W VDSL2 Wireless-AC VPN Routers are impacted by this vulnerability.
Exploitation Mechanism
Attackers can exploit this flaw by sending specially crafted HTTP requests to the affected devices to achieve arbitrary code execution or trigger unexpected device reboots.
Mitigation and Prevention
To safeguard systems from CVE-2021-1287, immediate actions and long-term security best practices are essential.
Immediate Steps to Take
Organizations should apply security patches promptly, restrict network access to vulnerable devices, and monitor for any suspicious activities.
Long-Term Security Practices
Implementing strong network segmentation, using intrusion detection systems, and conducting regular security audits can enhance overall cybersecurity posture.
Patching and Updates
Regularly check for security advisories from Cisco and apply firmware updates to address known vulnerabilities and enhance device security.