CVE-2021-1297 : Vulnerability Insights and Analysis

Cisco Small Business RV160, RV160W, RV260, RV260P, and RV260W VPN Routers are affected by multiple vulnerabilities in their web-based management interface that could allow remote attackers to conduct directory traversal attacks and overwrite restricted files on the system.

Understanding CVE-2021-1297

This CVE highlights arbitrary file write vulnerabilities in Cisco's Small Business RV Series Router Firmware.

What is CVE-2021-1297?

CVE-2021-1297 exposes flaws in the web-based management interface of Cisco Small Business RV Series routers, allowing unauthorized remote access to overwrite system files due to inadequate input validation.

The Impact of CVE-2021-1297

The vulnerability poses a high severity risk with a CVSS base score of 7.5, potentially enabling attackers to compromise system integrity without requiring any user interaction.

Technical Details of CVE-2021-1297

This section delves into the specifics of the vulnerability.

Vulnerability Description

The flaw allows unauthenticated attackers to perform directory traversal attacks and overwrite specific files on affected devices, exploiting the web-based management interface.

Affected Systems and Versions

The vulnerability affects Cisco Small Business RV160, RV160W, RV260, RV260P, and RV260W VPN Routers.

Exploitation Mechanism

Attackers can exploit CVE-2021-1297 by uploading files through the web-based management interface to unauthorized device locations, potentially compromising the affected system.

Mitigation and Prevention

Here are the essential steps to mitigate and prevent exploitation of this vulnerability.

Immediate Steps to Take

Update the firmware of affected devices to the latest version provided by Cisco.
Monitor network traffic for any suspicious activities indicating a compromise.

Long-Term Security Practices

Regularly update and patch systems to address known vulnerabilities.
Restrict access to the web-based management interface to authorized users only.

Patching and Updates

Stay informed about security advisories from Cisco and promptly apply any patches or updates released to address CVE-2021-1297 vulnerabilities.