CVE-2023-20136 Explained : Impact and Mitigation

This CVE record outlines a vulnerability in the OpenAPI of Cisco Secure Workload that could potentially allow a remote attacker with read-only user privileges to carry out operations that typically require Administrator rights. The attacker would need valid user credentials to exploit this vulnerability.

Understanding CVE-2023-20136

This section delves into the details surrounding CVE-2023-20136 and its implications.

What is CVE-2023-20136?

CVE-2023-20136 is a vulnerability stemming from improper role-based access control (RBAC) of certain OpenAPI operations within Cisco Secure Workload. An attacker could leverage this flaw by executing a manipulated OpenAPI function call using valid credentials. If successful, the attacker could perform OpenAPI operations reserved for the Administrator user, such as creating and deleting user labels.

The Impact of CVE-2023-20136

The impact of this vulnerability is categorized as MEDIUM severity. While it requires low privileges and has a low attack complexity, an authenticated attacker could potentially compromise the integrity of the system by executing unauthorized operations that should be restricted to Administrator roles.

Technical Details of CVE-2023-20136

In this section, we will explore the technical aspects of CVE-2023-20136, including the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability in the OpenAPI of Cisco Secure Workload arises from improper RBAC implementation, allowing unauthorized users to perform privileged operations.

Affected Systems and Versions

Numerous versions of Cisco Secure Workload are affected by this vulnerability, ranging from 1.102.21 to 3.7.1.5.

Exploitation Mechanism

To exploit CVE-2023-20136, an attacker would need valid user credentials and the ability to execute a crafted OpenAPI function call to bypass RBAC restrictions and perform unauthorized operations.

Mitigation and Prevention

This section provides insights into mitigating the risks associated with CVE-2023-20136 and implementing preventive measures.

Immediate Steps to Take

Cisco advises users to apply the necessary updates and patches provided by the vendor promptly.
Limit access to the OpenAPI to only essential personnel with the required privileges.

Long-Term Security Practices

Regularly review and update access control policies to ensure proper RBAC implementation.
Conduct security training for users to raise awareness regarding the importance of credential security and unauthorized access prevention.

Patching and Updates

Users are urged to install the security updates and patches released by Cisco to address the vulnerability in Cisco Secure Workload and prevent potential exploitation.