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CVE-2024-27317— Apache Pulsar: Pulsar Functions Worker's Archive Extraction Vulnerability Allows Unauthorized File Modification

Quick assessment

Affected
Apache Software Foundation Apache Pulsar
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apache Pulsar是美国阿帕奇（Apache）基金会的一个用于云环境种，集消息、存储、轻量化函数式计算为一体的分布式消息流平台。该软件支持多租户、持久化存储、多机房跨区域数据复制，具有强一致性、高吞吐以及低延时的高可扩展流数据存储特性。 Apache Pulsar 存在路径遍历漏洞，该漏洞源于没有对用户上传的文件名进行充分限制。

CVSS 8.4 · High EPSS 56.93% · P99
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I. Basic Information for CVE-2024-27317

Vulnerability Information
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Vulnerability Title
Apache Pulsar: Pulsar Functions Worker's Archive Extraction Vulnerability Allows Unauthorized File Modification
Source: CVE Program / CVE List V5
Vulnerability Description
In Pulsar Functions Worker, authenticated users can upload functions in jar or nar files. These files, essentially zip files, are extracted by the Functions Worker. However, if a malicious file is uploaded, it could exploit a directory traversal vulnerability. This occurs when the filenames in the zip files, which aren't properly validated, contain special elements like "..", altering the directory path. This could allow an attacker to create or modify files outside of the designated extraction directory, potentially influencing system behavior. 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Apache Pulsar 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Pulsar是美国阿帕奇（Apache）基金会的一个用于云环境种，集消息、存储、轻量化函数式计算为一体的分布式消息流平台。该软件支持多租户、持久化存储、多机房跨区域数据复制，具有强一致性、高吞吐以及低延时的高可扩展流数据存储特性。 Apache Pulsar 存在路径遍历漏洞，该漏洞源于没有对用户上传的文件名进行充分限制。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache Pulsar 2.4.0 ~ 2.10.6 -

II. Public POCs for CVE-2024-27317

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III. Intelligence Information for CVE-2024-27317

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Mailing List Discussions for CVE-2024-27317 (2)

Other References for CVE-2024-27317 (1)

Same Patch Batch · Apache Software Foundation · 2024-03-12 · 6 CVEs total

CVE-2024-27894 8.5 HIGH Apache Pulsar: Pulsar Functions Worker Allows Unauthorized File Access and Unauthorized HT
CVE-2024-27135 8.5 HIGH Apache Pulsar: Improper Input Validation in Pulsar Function Worker allows Remote Code Exec
CVE-2022-34321 8.2 HIGH Apache Pulsar: Improper Authentication for Pulsar Proxy Statistics Endpoint
CVE-2024-28098 6.4 MEDIUM Apache Pulsar: Improper Authorization For Topic-Level Policy Management
CVE-2023-41313 Apache Doris: Timing Attack weakness

IV. Related Vulnerabilities

Same product: Apache Pulsar
Same vendor: Apache Software Foundation
Same weakness: CWE-22

V. Comments for CVE-2024-27317

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