CVE-2021-1560 : What You Need to Know

Cisco DNA Spaces Connector Command Injection Vulnerabilities

Understanding CVE-2021-1560

Cisco DNA Spaces Connector is affected by multiple vulnerabilities that could enable a remote attacker to execute a command injection attack on the device. These vulnerabilities stem from inadequate input sanitization during command execution, which could be exploited by a high-privileged attacker to run arbitrary commands within the Connector docker container.

What is CVE-2021-1560?

CVE-2021-1560 pertains to multiple vulnerabilities in Cisco DNA Spaces Connector that allow an authenticated, remote attacker to carry out a command injection attack by manipulating input during command execution. The attacker could then potentially run unauthorized commands with elevated privileges.

The Impact of CVE-2021-1560

The vulnerabilities in Cisco DNA Spaces Connector pose a medium-severity risk with a base CVSS score of 6.5. An exploit could lead to high impacts on confidentiality and integrity with the potential for executing arbitrary commands as the root user within the Connector docker container.

Technical Details of CVE-2021-1560

The CVE-2021-1560 vulnerability is classified under CWE-78, indicating improper neutralization of special elements used in an OS command.

Vulnerability Description

The vulnerability arises from insufficient input validation during command execution, enabling an attacker to inject crafted input and execute arbitrary commands within the Connector docker container.

Affected Systems and Versions

The Cisco DNA Spaces Connector versions are affected by these vulnerabilities, where successful exploitation could result in unauthorized command execution.

Exploitation Mechanism

A remote, authenticated attacker with high privileges could exploit these vulnerabilities by injecting malicious input during command execution to achieve unauthorized command execution within the Connector docker container.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-1560, immediate steps should be taken along with implementing long-term security practices and applying necessary patches and updates.

Immediate Steps to Take

Organizations utilizing Cisco DNA Spaces Connector should review and apply the security advisory provided by Cisco, which includes necessary remediation steps to address the vulnerabilities.

Long-Term Security Practices

Implementing security best practices, such as regular security assessments, access control policies, and security training, can enhance the overall security posture and resilience against similar vulnerabilities.

Patching and Updates

Ensure timely application of security patches and updates released by Cisco to address the vulnerabilities in the DNA Spaces Connector and enhance the security of the affected systems.