Vulnerability CVE-2021-29641


Published: 2021-04-07   Modified: 2021-04-08

Description:
Directus 8 before 8.8.2 allows remote authenticated users to execute arbitrary code because file-upload permissions include the ability to upload a .php file to the main upload directory and/or upload a .php file and a .htaccess file to a subdirectory. Exploitation succeeds only for certain installations with the Apache HTTP Server and the local-storage driver (e.g., when the product was obtained from hub.docker.com).

Type:

CWE-434

(Unrestricted Upload of File with Dangerous Type)

CVSS2 => (AV:N/AC:L/Au:S/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.5/10
6.4/10
8/10
Exploit range
Attack complexity
Authentication
Remote
Low
Single time
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Rangerstudio -> Directus 

 References:
http://packetstormsecurity.com/files/162118/Monospace-Directus-Headless-CMS-File-Upload-Rule-Bypass.html
http://seclists.org/fulldisclosure/2021/Apr/14
https://hub.docker.com/layers/directus/directus/v8.8.2-apache/images/sha256-d9898b6442b0150c3c377b50e706757f35d2d563bd82ddaf97f3ae4ba450a6e6?context=explore
https://sec-consult.com/de/vulnerability-lab/advisory/arbitrary-file-upload-and-bypassing-htaccess-rules-in-monospace-directus-headless-cms/
https://sec-consult.com/vulnerability-lab/advisory/arbitrary-file-upload-and-bypassing-htaccess-rules-in-monospace-directus-headless-cms/

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