CVE-2020-7245 Business logic in n/a
Attackers can take over arbitrary accounts by registering with whitespace-padded usernames if email features are enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-7245?
CVE-2020-7245 is a critical vulnerability in n/a, published on 23 Jan 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-640
Which versions are affected by CVE-2020-7245?
It affects 1 product.
Products include Ctfd Ctfd.
How do I fix CVE-2020-7245?
No fix has been published for CVE-2020-7245 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-7245 being exploited?
There is no known exploitation of CVE-2020-7245 in the wild and no public exploit code.
Sources
Also known as GHSA-qrhm-93gw-vg83.