CVE-2022-24280 : What You Need to Know

Apache Pulsar Proxy target broker address isn't validated

Understanding CVE-2022-24280

This CVE refers to an Improper Input Validation vulnerability in the Proxy component of Apache Pulsar that allows an attacker to make TCP/IP connection attempts originating from the Pulsar Proxy's IP address.

What is CVE-2022-24280?

The vulnerability in Apache Pulsar Proxy allows potential attackers to launch DoS attacks that originate from the Pulsar Proxy's IP address by making TCP/IP connection attempts to any IP address and port.

The Impact of CVE-2022-24280

This vulnerability can be exploited by attackers to perform Denial of Service (DoS) attacks. The issue affects Apache Pulsar Proxy versions 2.7.0 to 2.7.4; 2.8.0 to 2.8.2; 2.9.0 to 2.9.1; 2.6.4 and earlier.

Technical Details of CVE-2022-24280

The following are key technical details of CVE-2022-24280:

Vulnerability Description

The vulnerability involves improper input validation in the Proxy component of Apache Pulsar, enabling TCP/IP connection attempts from the Pulsar Proxy's IP address.

Affected Systems and Versions

The vulnerability affects Apache Pulsar Proxy versions: 2.7.0 to 2.7.4; 2.8.0 to 2.8.2; 2.9.0 to 2.9.1; 2.6.4 and earlier.

Exploitation Mechanism

Attackers can exploit this issue to conduct DoS attacks originating from the Pulsar Proxy's IP address.

Mitigation and Prevention

To mitigate the CVE-2022-24280 vulnerability, users are advised to take the following steps:

Immediate Steps to Take

Upgrade Apache Pulsar Proxy versions to the patched versions:
2.7 users should upgrade to version 2.7.5.
2.8 users should upgrade to at least version 2.8.3.
2.9 users should upgrade to at least version 2.9.2.
2.10 users should apply configuration changes.
Limit proxied broker connections further to known addresses by specifying the necessary settings.

Long-Term Security Practices

Implement proper access controls, security configurations, and regular security updates to prevent future vulnerabilities.

Patching and Updates

Users running Apache Pulsar Proxy 2.6.4 and earlier are recommended to upgrade to the patched versions and apply the necessary configuration changes.