CVE-2022-24797 : Vulnerability Insights and Analysis

Pomerium, an identity-aware access proxy, is affected by a vulnerability that exposes potentially sensitive environmental information. This article provides an overview of CVE-2022-24797 and its impact, along with technical details and mitigation strategies.

Understanding CVE-2022-24797

This section delves into the details of the vulnerability in Pomerium, highlighting the exposure of sensitive information to unauthorized actors.

What is CVE-2022-24797?

Pomerium's Authenticate service in distributed mode exposes debug and prometheus metrics handlers to untrusted traffic, potentially leading to information leakage or limited denial of service conditions.

The Impact of CVE-2022-24797

With a CVSS base score of 6.5 (Medium severity), the vulnerability poses a low confidentiality impact and can result in limited denial of service conditions. However, it requires no special privileges for exploitation.

Technical Details of CVE-2022-24797

This section provides technical insights into the vulnerability, including its description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The flaw allows unauthorized actors to access potentially sensitive environmental information via Pomerium's Authenticate service in distributed mode.

Affected Systems and Versions

The vulnerability affects Pomerium versions from v0.16.0 to v0.17.0, exposing them to the risk of information leakage.

Exploitation Mechanism

By accessing the

/debug

and

/metrics

paths on the authenticate service, attackers can exploit the vulnerability to obtain sensitive information.

Mitigation and Prevention

This section outlines the steps to mitigate the impact of CVE-2022-24797 and prevent potential exploitation.

Immediate Steps to Take

To address the vulnerability, it is recommended to block access to the

/debug

and

/metrics

paths on the authenticate service using an L7 proxy.

Long-Term Security Practices

Implement strict access controls, monitor network traffic for unauthorized access attempts, and keep systems updated to prevent similar vulnerabilities in the future.

Patching and Updates

Ensure that Pomerium is updated to version v0.17.1 or higher, where the vulnerability has been patched to prevent information exposure.