CVE-2021-34765 : What You Need to Know
Learn about CVE-2021-34765, a vulnerability in Cisco Nexus Insights allowing authenticated attackers to access and download sensitive files through the web UI, potentially leading to data disclosure.
A vulnerability in the web UI for Cisco Nexus Insights allows an authenticated, remote attacker to view and download files related to the web application, potentially leading to the disclosure of sensitive information.
Understanding CVE-2021-34765
This vulnerability in Cisco Nexus Insights poses a risk of an authenticated attacker gaining unauthorized access to sensitive files through the web UI.
What is CVE-2021-34765?
The vulnerability in Cisco Nexus Insights enables an authenticated remote attacker to view and download files related to the web application without appropriate access controls.
The Impact of CVE-2021-34765
If exploited, this vulnerability could result in unauthorized access to sensitive files, potentially leading to the disclosure of confidential information.
Technical Details of CVE-2021-34765
This section delves into the specific technical aspects of the vulnerability.
Vulnerability Description
Proper role-based access control filters are not applied to file download actions, allowing an attacker to exploit this weakness by navigating to the directory listing and download functions.
Affected Systems and Versions
The vulnerability affects Cisco Nexus Insights with unspecified versions.
Exploitation Mechanism
An attacker with valid device credentials can exploit the vulnerability by logging into the application and accessing the directory listing and download functions to obtain sensitive files.
Mitigation and Prevention
To mitigate the risks associated with CVE-2021-34765, users and organizations can take the following steps:
Immediate Steps to Take
- Ensure all sensitive files are properly secured and access-controlled.
- Monitor web UI activities for any unauthorized access.
Long-Term Security Practices
- Implement strict role-based access controls to restrict file downloads.
- Regularly review and update access control policies.
Patching and Updates
Check for security advisories from Cisco regarding patches or updates to address this vulnerability.