CVE-2021-20624 Missing authorization in Cybozu Office

Medium 6.5 Published 18 Mar 2021 Updated 3 Aug 2024

Authenticated attackers can bypass access restrictions to modify Scheduler data in Cybozu Office due to improper access control.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-20624?

CVE-2021-20624 is a medium-severity missing authorization vulnerability in Cybozu Office, published on 18 Mar 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Improper access control vulnerability in Scheduler of Cybozu Office 10.0.0 to 10.8.4 allows an authenticated attacker to bypass access restriction and alter the data of Scheduler via unspecified vectors.

Which versions are affected by CVE-2021-20624?

It affects 1 product.

Products include Cybozu Office.

How do I fix CVE-2021-20624?

No fix has been published for CVE-2021-20624 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2021-20624 being exploited?

There is no known exploitation of CVE-2021-20624 in the wild and no public exploit code.

All Cybozu Office vulnerabilities

Sources

Also known as GHSA-vcgm-w445-jvmq.