Apache Pulsar up to 2.10.5/2.11.2/3.0.1/3.1.0 SASL Role Token information disclosure

Summaryinfo

A vulnerability labeled as problematic has been found in Apache Pulsar up to 2.10.5/2.11.2/3.0.1/3.1.0. This vulnerability affects unknown code of the component SASL Role Token Handler. Executing a manipulation can lead to information disclosure. This vulnerability is tracked as CVE-2023-51437. The attack can be launched remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Apache Pulsar up to 2.10.5/2.11.2/3.0.1/3.1.0 and classified as problematic. This vulnerability affects an unknown part of the component SASL Role Token Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. CVE summarizes:

Observable timing discrepancy vulnerability in Apache Pulsar SASL Authentication Provider can allow an attacker to forge a SASL Role Token that will pass signature verification. Users are recommended to upgrade to version 2.11.3, 3.0.2, or 3.1.1 which fixes the issue. Users should also consider updating the configured secret in the `saslJaasServerRoleTokenSignerSecretPath` file. Any component matching an above version running the SASL Authentication Provider is affected. That includes the Pulsar Broker, Proxy, Websocket Proxy, or Function Worker. 2.11 Pulsar users should upgrade to at least 2.11.3. 3.0 Pulsar users should upgrade to at least 3.0.2. 3.1 Pulsar users should upgrade to at least 3.1.1. Any users running Pulsar 2.8, 2.9, 2.10, and earlier should upgrade to one of the above patched versions. For additional details on this attack vector, please refer to https://codahale.com/a-lesson-in-timing-attacks/ .

The weakness was disclosed 02/07/2024 by Yiheng Cao. The advisory is available at lists.apache.org. This vulnerability was named CVE-2023-51437 since 12/19/2023. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

Upgrading to version 2.11.3, 3.0.2 or 3.1.1 eliminates this vulnerability.

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Productinfo

Vendor

• Apache

Name

• Pulsar

Version

• 2.10.0
• 2.10.1
• 2.10.2
• 2.10.3
• 2.10.4
• 2.10.5
• 2.11.0
• 2.11.1
• 2.11.2
• 3.0
• 3.0.0
• 3.0.1
• 3.1.0

License

• open-source

Website

• Vendor: https://www.apache.org/

CPE 2.3info

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CPE 2.2info

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