CVE-2021-1512 : Vulnerability Insights and Analysis
Discover the impact of CVE-2021-1512, a medium-severity vulnerability in Cisco SD-WAN Software that allows attackers to overwrite arbitrary files in the underlying system.
A vulnerability in the CLI of Cisco SD-WAN Software allows an authenticated, local attacker to overwrite arbitrary files, posing a medium-severity risk.
Understanding CVE-2021-1512
This CVE details a flaw in Cisco SD-WAN Solution that could lead to arbitrary file corruption, potentially enabling attackers to manipulate system files.
What is CVE-2021-1512?
The vulnerability stems from inadequate validation of user-supplied input in a specific CLI command, enabling attackers to overwrite content in host file systems.
The Impact of CVE-2021-1512
With a CVSS base score of 4.4 (Medium severity), this vulnerability could be exploited by high-privileged, local attackers to compromise system integrity by tampering with files.
Technical Details of CVE-2021-1512
This section delves into the vulnerability's description, affected systems and versions, as well as the exploitation mechanism.
Vulnerability Description
The flaw in Cisco SD-WAN Software allows authenticated attackers to overwrite arbitrary files by manipulating input parameters of a specific CLI command.
Affected Systems and Versions
The vulnerability affects all versions of Cisco SD-WAN Solutions.
Exploitation Mechanism
Attackers can exploit this issue by using specific parameters within the CLI command, circumventing proper input validation to overwrite crucial system files.
Mitigation and Prevention
Explore immediate steps and long-term security practices to mitigate the risk and ensure system integrity.
Immediate Steps to Take
It is crucial to address this vulnerability by applying relevant patches as soon as available. Implementing secure coding practices and user input validation can also fortify system defenses.
Long-Term Security Practices
Regularly monitor for security advisories from Cisco and apply updates promptly to safeguard systems against potential vulnerabilities.
Patching and Updates
Stay informed about security patches and updates released by Cisco for the SD-WAN software to address this vulnerability promptly.