CVE-2024-27135: pulsar Input Validation Flaw — Fix

Description

Improper input validation in the Pulsar Function Worker allows a malicious authenticated user to execute arbitrary Java code on the Pulsar Function worker, outside of the sandboxes designated for running user-provided functions. This vulnerability also applies to the Pulsar Broker when it is configured with "functionsWorkerEnabled=true". This issue affects Apache Pulsar versions from 2.4.0 to 2.10.5, from 2.11.0 to 2.11.3, from 3.0.0 to 3.0.2, from 3.1.0 to 3.1.2, and 3.2.0. 2.10 Pulsar Function Worker users should upgrade to at least 2.10.6. 2.11 Pulsar Function Worker users should upgrade to at least 2.11.4. 3.0 Pulsar Function Worker users should upgrade to at least 3.0.3. 3.1 Pulsar Function Worker users should upgrade to at least 3.1.3. 3.2 Pulsar Function Worker users should upgrade to at least 3.2.1. Users operating versions prior to those listed above should upgrade to the aforementioned patched versions or newer versions.

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CVSS v3.1 Score

8.5

HIGH

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Weakness Type (CWE)

CWE-20 Improper Input Validation

CWE-913 CWE-913

Affected Products

Vendor	Product	Versions
apache	pulsar	2.4.0 — 2.10.6
apache	pulsar	2.11.0 — 2.11.4
apache	pulsar	3.0.0 — 3.0.3
apache	pulsar	3.1.0 — 3.1.3
apache	pulsar	All

References

Advisories & Patches

https://lists.apache.org/thread/dh8nj2vmb2br6thjltq74lk9jxkz62wn https://pulsar.apache.org/security/CVE-2024-27135/ https://lists.apache.org/thread/dh8nj2vmb2br6thjltq74lk9jxkz62wn https://pulsar.apache.org/security/CVE-2024-27135/

Other References

http://www.openwall.com/lists/oss-security/2024/03/12/9 http://www.openwall.com/lists/oss-security/2024/03/12/9

Frequently Asked Questions

What is CVE-2024-27135? +

Improper input validation in the Pulsar Function Worker allows a malicious authenticated user to execute arbitrary Java code on the Pulsar Function worker, outside of the sandboxes designated for running user-provided functions. This vulnerability also applies to the Pulsar Broker when it is configured with "functionsWorkerEnabled=true". This issue affects Apache Pulsar versions from 2.4.0 to 2.10.5, from 2.11.0 to 2.11.3, from 3.0.0 to 3.0.2, from 3.1.0 to 3.1.2, and 3.2.0. 2.10 Pulsar Function Worker users should upgrade to at least 2.10.6. 2.11 Pulsar Function Worker users should upgrade to at least 2.11.4. 3.0 Pulsar Function Worker users should upgrade to at least 3.0.3. 3.1 Pulsar Function Worker users should upgrade to at least 3.1.3. 3.2 Pulsar Function Worker users should upgrade to at least 3.2.1. Users operating versions prior to those listed above should upgrade to the aforementioned patched versions or newer versions. It has a CVSS v3.1 base score of 8.5 (HIGH).

How severe is CVE-2024-27135? +

CVE-2024-27135 has a CVSS v3.1 score of 8.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-27135? +

CVE-2024-27135 affects products from apache, specifically: pulsar. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-27135? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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