National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2020-7245 Detail

Current Description

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.

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 9.8 CRITICAL
Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/CTFd/CTFd/pull/1218 Third Party Advisory
https://github.com/CTFd/CTFd/releases/tag/2.2.3 Release Notes

Weakness Enumeration

CWE-ID CWE Name Source
CWE-640 Weak Password Recovery Mechanism for Forgotten Password NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:ctfd:ctfd:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
2.0.0
Up to (including)
2.2.2


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2020-7245
NVD Published Date:
01/23/2020
NVD Last Modified:
01/31/2020