CVE-2021-20757 Missing authorization in Cybozu Garoon

Medium 4.3 Published Updated

Remote authenticated attackers can bypass operational restrictions to alter Portal data without appropriate privileges in Cybozu Garoon.

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-2021-20757?

CVE-2021-20757 is a medium-severity missing authorization vulnerability in Cybozu Garoon, published on 18 Aug 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Operational restrictions bypass vulnerability in E-mail of Cybozu Garoon 4.0.0 to 5.0.2 allows a remote authenticated attacker to alter the data of Portal without the appropriate privilege.

Which versions are affected by CVE-2021-20757?

It affects 1 product.

Products include Cybozu Garoon.

How do I fix CVE-2021-20757?

No fix has been published for CVE-2021-20757 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-2021-20757 being exploited?

There is no known exploitation of CVE-2021-20757 in the wild and no public exploit code.

All Cybozu Garoon vulnerabilities

Sources

Also known as GHSA-rrj9-vv37-478g.

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