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Security Advisories: GSA_kwCzR0hTQS0zd2h4LXFyajUtaGgyaM0oMQ

Improper Input Validation in Apache Pulsar

In Apache Pulsar it is possible to access data from BookKeeper that does not belong to the topics accessible by the authenticated user. The Admin API get-message-by-id requires the user to input a topic and a ledger id. The ledger id is a pointer to the data, and it is supposed to be a valid it for the topic. Authorisation controls are performed against the topic name and there is not proper validation the that ledger id is valid in the context of such ledger. So it may happen that the user is able to read from a ledger that contains data owned by another tenant. This issue affects Apache Pulsar Apache Pulsar version 2.8.0 and prior versions; Apache Pulsar version 2.7.3 and prior versions; Apache Pulsar version 2.6.4 and prior versions.

Permalink: https://github.com/advisories/GHSA-3whx-qrj5-hh2h
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS0zd2h4LXFyajUtaGgyaM0oMQ
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: over 2 years ago
Updated: 10 months ago

CVSS Score: 6.5
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Identifiers: GHSA-3whx-qrj5-hh2h, CVE-2021-41571
References:

• https://nvd.nist.gov/vuln/detail/CVE-2021-41571
• https://github.com/apache/pulsar/issues/11814
• https://lists.apache.org/thread/8n3k7pvyh4cf9q2jfzb6pb32ync6xlvr
• https://pulsar.apache.org/admin-rest-api/#operation/getLastMessageId
• https://github.com/apache/pulsar/pull/11852
• https://github.com/apache/pulsar/pull/11912
• https://github.com/apache/pulsar/pull/11913
• https://github.com/apache/pulsar/releases/tag/v2.7.4
• https://github.com/apache/pulsar/releases/tag/v2.8.1
• https://github.com/advisories/GHSA-3whx-qrj5-hh2h

Repository: https://github.com/apache/pulsar
Blast Radius: 3.9

Affected Packages