Denial of service in Strapi

1) Resource exhaustion

EUVDB-ID: #VU24842

Risk: Medium

CVSSv3.1: 4.3 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to the sanitisation regex in "installPlugin" and "uninstallPlugin" handler functions for the admin panel allows the dash - character. A remote administrator can pass valid arguments like -h, -v, --help which will be passed to "execa()" and restart a server.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

strapi: 1.0.0 - 3.0.0 beta.18.3

External links

http://snyk.io/vuln/SNYK-JS-STRAPI-543624
http://hackerone.com/reports/768574

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.