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CVE-2024-27894— Apache Pulsar 安全漏洞

一分钟漏洞结论

影响对象
Apache Software Foundation Apache Pulsar
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。

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 存在安全漏洞。攻击者利用该漏洞可以对 Pulsar Functions Worker 进程有权读取的任何文件进行未经授权的访问。

CVSS 8.5 · High EPSS 1.90% · P79
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一、 漏洞 CVE-2024-27894 基础信息

漏洞信息
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Vulnerability Title
Apache Pulsar: Pulsar Functions Worker Allows Unauthorized File Access and Unauthorized HTTP/HTTPS Proxying
来源: CVE Program / CVE List V5
Vulnerability 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=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. The updated versions of Pulsar Functions Worker will, by default, impose restrictions on the creation of functions using URLs. For users who rely on this functionality, the Function Worker configuration provides two configuration keys: "additionalEnabledConnectorUrlPatterns" and "additionalEnabledFunctionsUrlPatterns". These keys allow users to specify a set of URL patterns that are permitted, enabling the creation of functions using URLs that match the defined patterns. This approach ensures that the feature remains available to those who require it, while limiting the potential for unauthorized access and exploitation.
来源: 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:H
来源: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
来源: CVE Program / CVE List V5
Vulnerability Title
Apache Pulsar 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
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 存在安全漏洞。攻击者利用该漏洞可以对 Pulsar Functions Worker 进程有权读取的任何文件进行未经授权的访问。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD

受影响产品

厂商 产品 影响版本 CPE 订阅
Apache Software Foundation Apache Pulsar 2.4.0 ~ 2.10.6 -

二、漏洞 CVE-2024-27894 的公开POC

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三、漏洞 CVE-2024-27894 的情报信息

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CVE-2024-27894 邮件列表归档 (2)

CVE-2024-27894 其他参考 (1)

同批安全公告 · Apache Software Foundation · 2024-03-12 · 共 6 条

CVE-2024-27135 8.5 HIGH Apache Pulsar 安全漏洞
CVE-2024-27317 8.4 HIGH Apache Pulsar 路径遍历漏洞
CVE-2022-34321 8.2 HIGH Apache Pulsar 访问控制错误漏洞
CVE-2024-28098 6.4 MEDIUM Apache Pulsar 安全漏洞
CVE-2023-41313 Apache Doris 安全漏洞

IV. Related Vulnerabilities

Same product: Apache Pulsar
Same vendor: Apache Software Foundation
Same weakness: CWE-20

V. Comments for CVE-2024-27894

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