CVE-2024-27894
8.5 · HIGHOverview
CVE-2024-27894 is a high-severity vulnerability affecting apache pulsar. It was published on March 12, 2024 and has a CVSS 3.1 base score of 8.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.5, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
The Pulsar Functions Worker includes a capability that permits authenticated users to create functions where the function's implementation is referenced by a URL. The supported URL schemes include "file", "http", and "https". When a function is created using this method, the Functions Worker will retrieve the implementation from the URL provided by the user. However, this feature introduces a vulnerability that can be exploited by an attacker to gain unauthorized access to any file that the Pulsar Functions Worker process has permissions to read. This includes reading the process environment which potentially includes sensitive information, such as secrets. Furthermore, an attacker could leverage this vulnerability to use the Pulsar Functions Worker as a proxy to access the content of remote HTTP and HTTPS endpoint URLs. This could also be used to carry out denial of service attacks.
This vulnerability also applies to the Pulsar Broker when it is configured with "functionsWorkerEnabled
Remediation
Check the references section for vendor advisories and patches from apache. Update pulsar to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| apache | pulsar | >= 2.4.0, < 2.10.6 | Affected |
References
Frequently Asked Questions
What is CVE-2024-27894?
CVE-2024-27894 is a high-severity vulnerability affecting apache pulsar. It was published on March 12, 2024 and has a CVSS 3.1 base score of 8.5 (HIGH).
How severe is CVE-2024-27894?
This vulnerability has a CVSS 3.1 base score of 8.5, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2024-27894?
Check the references section for vendor advisories and patches from apache. Update pulsar to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2024-27894?
CyberStrike's AI-powered security agents can automatically detect CVE-2024-27894 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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