CVE-2021-20791 Missing authorization in RevoWorks Browser
An attacker can bypass access restrictions to exchange unauthorized files between local and isolated environments in RevoWorks Browser.
- 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-2021-20791?
CVE-2021-20791 is a critical missing authorization vulnerability in J’s Communication Co., Ltd. RevoWorks Browser, published on 17 Sep 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Improper access control vulnerability in RevoWorks Browser 2.1.230 and earlier allows an attacker to bypass access restriction and to exchange unauthorized files between the local environment and the isolated environment or settings of the web browser via unspecified vectors.
Which versions are affected by CVE-2021-20791?
It affects 1 product.
Products include Jscom Revoworks Browser.
How do I fix CVE-2021-20791?
No fix has been published for CVE-2021-20791 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-2021-20791 being exploited?
There is no known exploitation of CVE-2021-20791 in the wild and no public exploit code.
Other vulnerabilities in J’s Communication Co., Ltd. RevoWorks Browser
Sources
Also known as GHSA-9435-7c72-6m39.