CVE-2019-11721 Other in Firefox
Attackers can spoof domains in the address bar using Unicode characters, potentially misleading users about the site's identity.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2019-11721?
CVE-2019-11721 is a medium-severity vulnerability in Mozilla Firefox, published on 23 Jul 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
The unicode latin 'kra' character can be used to spoof a standard 'k' character in the addressbar. This allows for domain spoofing attacks as do not display as punycode text, allowing for user confusion. This vulnerability affects Firefox < 68.
Which versions are affected by CVE-2019-11721?
It affects 2 products.
Products include Mozilla Firefox, Opensuse Leap.
How do I fix CVE-2019-11721?
Upgrade to a fixed version.
Is CVE-2019-11721 being exploited?
There is no known exploitation of CVE-2019-11721 in the wild and no public exploit code.
Other vulnerabilities in Mozilla Firefox
Sources
Also known as GHSA-c59w-3gff-7wp9, UBUNTU-CVE-2019-11721.