CVE-2021-20801 XML external entity in Cybozu Remote Service

Medium 6.5 Published Updated

Remote authenticated attackers can exploit XXE in Cybozu Remote Service to read sensitive information, primarily when using Mozilla Firefox.

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-2021-20801?

CVE-2021-20801 is a medium-severity vulnerability in Cybozu, Inc. Cybozu Remote Service, published on 13 Oct 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Cybozu Remote Service 3.1.8 to 3.1.9 allows a remote authenticated attacker to conduct XML External Entity (XXE) attacks and obtain the information stored in the product via unspecified vectors. This issue occurs only when using Mozilla Firefox.

Weakness: CWE-611

Which versions are affected by CVE-2021-20801?

It affects 1 product.

Products include Cybozu Remote Service Manager.

How do I fix CVE-2021-20801?

No fix has been published for CVE-2021-20801 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-20801 being exploited?

There is no known exploitation of CVE-2021-20801 in the wild and no public exploit code.

Sources

Also known as GHSA-33hf-cc48-qxc6.

Is CVE-2021-20801 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free