Incorrect username validation in the registration process of CTFd v2.0.0 - v2.2.2 allows an attacker to take over an arbitrary account if the username is known and emails are enabled on the CTFd instance. To exploit the vulnerability, one must register with a username identical to the victim's username, but with white space inserted before and/or after the username. This will register the account with the same username as the victim. After initiating a password reset for the new account, CTFd will reset the victim's account password due to the username collision.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2020-01-23T22:47:11

Updated: 2024-08-04T09:25:48.424Z

Reserved: 2020-01-20T00:00:00

Link: CVE-2020-7245

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2020-01-23T23:15:11.597

Modified: 2020-01-31T16:02:26.450

Link: CVE-2020-7245

cve-icon Redhat

No data.