CVE-2023-28117 : Vulnerability Insights and Analysis

This CVE focuses on a vulnerability in the Sentry SDK, the official Python SDK for Sentry, a real-time crash reporting software. The vulnerability allows for the leakage of sensitive session information when a specific configuration is used.

Understanding CVE-2023-28117

This vulnerability in the Sentry SDK can potentially expose sensitive cookies, including the session cookie, to Sentry. This could lead to unauthorized access and potential privilege escalation within the application.

What is CVE-2023-28117?

The vulnerability occurs when using the Django integration of versions prior to 1.14.0 of the Sentry SDK in a certain configuration, where setting

sendDefaultPII

to

True

can result in the leakage of sensitive cookie values. It requires specific conditions in the SDK configuration and Django settings for the leak to happen.

The Impact of CVE-2023-28117

The impact of this vulnerability is classified as high severity, with a CVSS base score of 7.6. It poses a risk to confidentiality as sensitive information can be exposed, potentially leading to unauthorized actions within the application.

Technical Details of CVE-2023-28117

This section delves deeper into the technical aspects of the vulnerability, including its description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability allows for the leakage of sensitive cookies, such as the session cookie, to Sentry when certain configurations are in place. This could enable an attacker to exploit the leaked information for unauthorized activities within the application.

Affected Systems and Versions

The affected system is the Sentry Python SDK, specifically versions prior to 1.14.0. If using versions earlier than 1.14.0, it is crucial to take immediate action to mitigate the risk posed by this vulnerability.

Exploitation Mechanism

The exploitation of this vulnerability is facilitated by misconfigurations in the Sentry SDK and Django integration settings. By setting

sendDefaultPII

to

True

and not utilizing data scrubbing features appropriately, sensitive cookies can be leaked to Sentry.

Mitigation and Prevention

To address CVE-2023-28117 and prevent its exploitation, certain steps must be taken to secure the systems and applications utilizing the affected Sentry SDK versions.

Immediate Steps to Take

Upgrade the Sentry Python SDK to version 1.14.0 or newer to mitigate the vulnerability.
Ensure that

sendDefaultPII

is set to

False

in the SDK configuration.
Review and adjust Django integration settings to prevent sensitive information leakage.

Long-Term Security Practices

Regularly monitor for updates and security advisories related to the Sentry SDK and apply patches promptly.
Conduct thorough security assessments and audits of the application's configurations to identify and address any vulnerabilities proactively.

Patching and Updates

Stay informed about security updates and releases from Sentry regarding the SDK to implement necessary patches promptly.
Follow best practices for secure coding and configuration to prevent similar vulnerabilities in the future.