CVE-2021-20803 Missing authorization in Cybozu Remote Service
A remote authenticated attacker can bypass operation restrictions to alter data in the Cybozu Remote Service management screen.
- 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-2021-20803?
CVE-2021-20803 is a medium-severity missing authorization 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
Operation restriction bypass in the management screen of Cybozu Remote Service 3.1.8 to 3.1.9 allows a remote authenticated attacker to alter the data of the management screen.
Weakness: CWE-863
Which versions are affected by CVE-2021-20803?
It affects 1 product.
Products include Cybozu Remote Service Manager.
How do I fix CVE-2021-20803?
No fix has been published for CVE-2021-20803 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-2021-20803 being exploited?
There is no known exploitation of CVE-2021-20803 in the wild and no public exploit code.
Other vulnerabilities in Cybozu, Inc. Cybozu Remote Service
Sources
Also known as GHSA-9f3v-4733-p868.