CVE-2021-1255 : What You Need to Know
Discover the impact of CVE-2021-1255, where authenticated remote attackers could manipulate data in Cisco Data Center Network Manager. Learn about mitigation steps and security best practices.
Cisco Data Center Network Manager (DCNM) is affected by multiple vulnerabilities in its REST API endpoint that could be exploited by a remote authenticated attacker to manipulate data without proper authorization.
Understanding CVE-2021-1255
This CVE record highlights the security issues present in the REST API of Cisco Data Center Network Manager (DCNM) that may lead to unauthorized access and data manipulation.
What is CVE-2021-1255?
The vulnerabilities in the REST API of Cisco DCNM allow authenticated remote attackers to view, modify, and delete data without the necessary permissions.
The Impact of CVE-2021-1255
The base CVSS score for this CVE is 4.6, indicating a medium severity issue. While the confidentiality and integrity impacts are low, the vulnerabilities can still be concerning as they require only low-level privileges for exploitation.
Technical Details of CVE-2021-1255
The following technical aspects shed light on the nature of CVE-2021-1255:
Vulnerability Description
The vulnerabilities affect the REST API endpoint of Cisco DCNM, enabling attackers to perform unauthorized data operations.
Affected Systems and Versions
The affected product is Cisco Data Center Network Manager, and all versions are susceptible to this security flaw.
Exploitation Mechanism
To exploit these vulnerabilities, attackers need to be authenticated remotely over the network with low-level privileges, making it relatively easier to launch an attack.
Mitigation and Prevention
Protecting systems from CVE-2021-1255 requires immediate actions and long-term security measures to safeguard against potential risks.
Immediate Steps to Take
Security teams are advised to review and apply the patches provided by Cisco to address these vulnerabilities promptly.
Long-Term Security Practices
Implementing strict access controls, regular security training, and continuous monitoring can help prevent unauthorized access and data manipulation.
Patching and Updates
Regularly updating the Cisco DCNM software to the latest version is crucial for maintaining a secure environment and mitigating the risks associated with these vulnerabilities.