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CVE-2021-26920— Apache Druid: The HTTP inputSource allows authenticated users to read data from other sources than intended

Quick assessment

Affected
Apache Software Foundation Apache Druid
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 Druid是美国阿帕奇（Apache）基金会的一款使用Java语言编写的、面向列的开源分布式数据库。 Apache Druid存在安全漏洞，该漏洞允许经过身份验证的用户使用Druid服务器进程的特权从其他源(如本地文件系统)读取数据。

AI Predicted 7.5 Difficulty: Easy EPSS 9.50% · P95
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I. Basic Information for CVE-2021-26920

Vulnerability Information
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Vulnerability Title
Apache Druid: The HTTP inputSource allows authenticated users to read data from other sources than intended
Source: CVE Program / CVE List V5
Vulnerability Description
In the Druid ingestion system, the InputSource is used for reading data from a certain data source. However, the HTTP InputSource allows authenticated users to read data from other sources than intended, such as the local file system, with the privileges of the Druid server process. This is not an elevation of privilege when users access Druid directly, since Druid also provides the Local InputSource, which allows the same level of access. But it is problematic when users interact with Druid indirectly through an application that allows users to specify the HTTP InputSource, but not the Local InputSource. In this case, users could bypass the application-level restriction by passing a file URL to the HTTP InputSource.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Apache Druid权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Druid是美国阿帕奇（Apache）基金会的一款使用Java语言编写的、面向列的开源分布式数据库。 Apache Druid存在安全漏洞，该漏洞允许经过身份验证的用户使用Druid服务器进程的特权从其他源(如本地文件系统)读取数据。
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 Druid Apache Druid ~ 0.20.2 -

II. Public POCs for CVE-2021-26920

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III. Intelligence Information for CVE-2021-26920

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Mailing List Discussions for CVE-2021-26920 (6)

IV. Related Vulnerabilities

Same product: Apache Druid
Same vendor: Apache Software Foundation

V. Comments for CVE-2021-26920

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