CVE-2020-7245
CTFd Username Spoofing
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.
INFO
Published Date :
Jan. 23, 2020, 11:15 p.m.
Last Modified :
Jan. 31, 2020, 4:02 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2020-7245 has a 4 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-7245.
| URL | Resource |
|---|---|
| https://github.com/CTFd/CTFd/pull/1218 | Third Party Advisory |
| https://github.com/CTFd/CTFd/releases/tag/2.2.3 | Release Notes |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
None
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离线文档库
HTML JavaScript CSS
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-7245 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-7245 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Jan. 31, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://github.com/CTFd/CTFd/pull/1218 No Types Assigned https://github.com/CTFd/CTFd/pull/1218 Third Party Advisory Changed Reference Type https://github.com/CTFd/CTFd/releases/tag/2.2.3 No Types Assigned https://github.com/CTFd/CTFd/releases/tag/2.2.3 Release Notes Added CWE NIST CWE-640 Added CPE Configuration OR *cpe:2.3:a:ctfd:ctfd:*:*:*:*:*:*:*:* versions from (including) 2.0.0 up to (including) 2.2.2 -
CVE Modified by [email protected]
Jan. 28, 2020
Action Type Old Value New Value Changed Description Incorrect username validation in the registration processes of CTFd through 2.2.2 allows a remote attacker to take over an arbitrary account after initiating a password reset. This is related to register() and reset_password() in auth.py. To exploit the vulnerability, one must register with a username similar to the admin, but with spaces inserted before and after the username. This will register the account with the same username as the admin. After a reset of the password for this new account, CTFd will reset the admin account's password due to the username collision. 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.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-7245 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-7245
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.24 }} 0.00%
score
0.60546
percentile