CVE-2021-36749
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. This issue was previously mentioned as being fixed in 0.21.0 as per CVE-2021-26920 but was not fixed in 0.21.0 or 0.21.1.
- CVSS v3.1
- 6.5 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - CVSS v3.1
- 6.5 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - CVSS v2.0
- 4.0 MEDIUM
AV:N/AC:L/Au:S/C:P/I:N/A:N - EPSS
- 81.04% chance of exploitation in the next 30 days, 100th percentile
- Nuclei
- medium · CWE-863
- Published
- 2021-09-24
- Updated
- 2024-08-04
Proof-of-concept exploits (4)
- BrucessKING/CVE-2021-3674933★ · 2021-10-15
- Jun-5heng/CVE-2021-367490★ · 2021-12-12
- dnr6419/Druid_docker0★ · 2021-10-29
- zwlsix/apache_druid_CVE-2021-367491★ · 2021-11-21
Nuclei templates (1)
Exploit collections (2)
- chaitin/xray/blob/master/pocs/apache-druid-cve-2021-36749.yml
- zan8in/afrog/blob/main/pocs/afrog-pocs/CVE/2021/CVE-2021-36749.yaml