CVE-2021-32541 SysJust CTS Web - Broken Access Control

Medium 5.3 Published 28 May 2021 Updated 17 Sep 2024

Remote attackers can force logged-in users to log out by sending valid usernames, causing denial of service.

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-2021-32541?

CVE-2021-32541 is a medium-severity authentication bypass vulnerability in SysJust CTS Web, published on 28 May 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The CTS Web transaction system related to authentication and session management is implemented incorrectly, which allows remote unauthenticated attackers can send a large number of valid usernames, and force those logged-in account to log out, causing the user to be unable to access the services

Weakness: CWE-287

Which versions are affected by CVE-2021-32541?

It affects 1 product.

Products include Sysjust Cts Web.

How do I fix CVE-2021-32541?

No fix has been published for CVE-2021-32541 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2021-32541 being exploited?

There is no known exploitation of CVE-2021-32541 in the wild and no public exploit code.

Sources

Also known as GHSA-549f-vmr8-2vjf.