CVE-2023-30951 Explained : Impact and Mitigation

This article provides insights into CVE-2023-30951, an XML external Entity attack (XXE) vulnerability found in the Foundry Magritte plugin rest-source by Palantir.

Understanding CVE-2023-30951

CVE-2023-30951 is a vulnerability in the Foundry Magritte plugin rest-source by Palantir that allows an adversary to execute an XML external Entity attack (XXE).

What is CVE-2023-30951?

The vulnerability in the Foundry Magritte plugin rest-source by Palantir allows an attacker to create a serialized data file containing external data references, potentially leading to unauthorized access to system information.

The Impact of CVE-2023-30951

An attacker exploiting CVE-2023-30951 could gain access to sensitive information by tricking the system into processing malicious serialized data files with external references.

Technical Details of CVE-2023-30951

The vulnerability involves processing XML documents containing entities with URIs that resolve to documents outside the system's control, allowing incorrect documents to be embedded in the output.

Vulnerability Description

The vulnerability arises from the mishandling of external references in XML documents, enabling attackers to manipulate the system into processing malicious data.

Affected Systems and Versions

The affected product by Palantir, com.palantir.magritte:magritte-rest-source-bundle, is susceptible to the vulnerability up to version 7.210.0.

Exploitation Mechanism

Attackers can craft malicious serialized data files containing external references to exploit the vulnerability and potentially gain unauthorized access to sensitive information.

Mitigation and Prevention

To address CVE-2023-30951, immediate steps should be taken to mitigate the risk and prevent unauthorized access to system information.

Immediate Steps to Take

Update the affected product to a version beyond 7.210.0 or implement recommended security measures to protect against XML external Entity attacks.

Long-Term Security Practices

Regularly monitor and update system components, enforce secure coding practices, and conduct security assessments to identify and remediate vulnerabilities.

Patching and Updates

Stay informed about security updates and patches released by Palantir to address CVE-2023-30951 and other potential vulnerabilities.