CVE-2021-1233 : Security Advisory and Response
Discover the impact of CVE-2021-1233, a vulnerability in Cisco SD-WAN Solution enabling unauthorized access to sensitive information. Learn how to mitigate and prevent potential exploitation.
This CVE-2021-1233 article provides insights into a vulnerability in the Cisco SD-WAN Software that could potentially allow an attacker to access sensitive information on affected devices.
Understanding CVE-2021-1233
This section delves into the details of the CVE-2021-1233 vulnerability affecting Cisco SD-WAN Solution.
What is CVE-2021-1233?
The vulnerability in the CLI of Cisco SD-WAN Software enables an authenticated, local attacker to retrieve files from the filesystem of an affected device due to insufficient input validation of requests to the iperf tool.
The Impact of CVE-2021-1233
With a CVSS base score of 4.4, this medium-severity vulnerability poses a high confidentiality impact, allowing attackers to access sensitive information.
Technical Details of CVE-2021-1233
This section elaborates on the specific technical aspects of the CVE-2021-1233 vulnerability.
Vulnerability Description
The vulnerability arises from inadequate input validation in requests sent to the iperf tool, enabling attackers to exploit the flaw and access files on the affected device.
Affected Systems and Versions
Cisco SD-WAN Solution is affected by this vulnerability across all versions.
Exploitation Mechanism
Attackers can exploit this vulnerability by sending a crafted request to the iperf tool included in Cisco SD-WAN Software, facilitating unauthorized access to device files.
Mitigation and Prevention
Learn about the necessary steps to mitigate and prevent potential exploitation of CVE-2021-1233.
Immediate Steps to Take
As a precautionary measure, users should apply security best practices and monitor any related advisories from Cisco.
Long-Term Security Practices
Implementing robust security protocols, restricting access, and ensuring regular security updates are essential for long-term protection.
Patching and Updates
Users are advised to apply patches promptly, follow vendor recommendations, and stay informed on security alerts to safeguard against CVE-2021-1233.