CVE-2023-6837 : Vulnerability Insights and Analysis

This CVE-2023-6837 was assigned by WSO2 and published on December 15, 2023. The vulnerability affects multiple WSO2 products and allows for user impersonation using Just-In-Time (JIT) provisioning.

Understanding CVE-2023-6837

This section delves into the specific details regarding CVE-2023-6837, including its impact, technical aspects, affected systems, and mitigation strategies.

What is CVE-2023-6837?

CVE-2023-6837 pertains to a vulnerability in WSO2 products that enables user impersonation through JIT provisioning. To exploit this vulnerability, specific conditions related to the Identity Provider (IDP) and Service Provider need to be met, along with requirements for the attacker.

The Impact of CVE-2023-6837

The impact of this vulnerability is rated with a CVSS v3.1 base score of 8.5, categorizing it as highly severe. It has a high impact on confidentiality, low impact on integrity, low privileges required, and the attack complexity is low, with a network-based attack vector.

Technical Details of CVE-2023-6837

In this section, the technical details of CVE-2023-6837 are discussed, encompassing vulnerability description, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability allows for user impersonation using JIT provisioning in WSO2 products. Specific configurations in the IDP and Service Provider, along with preconditions for the attacker, enable this exploit.

Affected Systems and Versions

The vulnerability impacts several WSO2 products, including WSO2 API Manager, WSO2 Identity Server, and WSO2 IS as Key Manager. Various versions of these products are affected, as detailed in the CVE data.

Exploitation Mechanism

For successful exploitation, an attacker needs a valid user account in the federated IDP, knowledge of a valid user's username in the local IDP, and specific configurations in the IDP and Service Provider as outlined in the vulnerability description.

Mitigation and Prevention

This section focuses on the steps to mitigate the risks posed by CVE-2023-6837, including immediate actions and long-term security practices.

Immediate Steps to Take

Users are advised to apply the provided patch/update for the affected versions of WSO2 products. WSO2 Subscription holders should follow the recommended solution provided by WSO2, while community users may apply relevant fixes based on public announcements.

Long-Term Security Practices

In the long term, organizations should implement robust security practices, including regular software updates, security monitoring, and user access controls, to prevent such vulnerabilities and mitigate risks effectively.

Patching and Updates

Regularly applying patches and updates released by WSO2 for the affected products is crucial to ensure the security and integrity of the systems. Following the recommended instructions during patching is essential for effective mitigation of CVE-2023-6837.