CVE-2021-33563 Improper rate limiting in Koel
Koel lacks login throttling and password policies, facilitating brute-force attacks that could lead to account takeover.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-33563?
CVE-2021-33563 is a high-severity vulnerability in n/a, published on 24 May 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Koel before 5.1.4 lacks login throttling, lacks a password strength policy, and shows whether a failed login attempt had a valid username. This might make brute-force attacks easier.
Weakness: CWE-916
Which versions are affected by CVE-2021-33563?
2 open source packages ship an affected version, including phanan/koel. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
phanan/koel Packagist | All versions | 5.1.4 |
phanan/koel Packagist | All versions | 5.1.4 |
Products include Koel Koel.
How do I fix CVE-2021-33563?
Upgrade phanan/koel to 5.1.4 or later.
Is CVE-2021-33563 being exploited?
There is no known exploitation of CVE-2021-33563 in the wild and no public exploit code.
Sources
Also known as CVE-2021-34064, GHSA-r37h-j483-cjjm.