CVE-2019-17019 Code injection in Firefox
Attackers can execute arbitrary code on Windows by tricking users into opening a downloaded Python file served as text/plain.
- 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
- None listed
What is CVE-2019-17019?
CVE-2019-17019 is a high-severity code injection vulnerability in Mozilla Firefox, published on 8 Jan 2020. 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
When Python was installed on Windows, a python file being served with the MIME type of text/plain could be executed by Python instead of being opened as a text file when the Open option was selected upon download. *Note: this issue only occurs on Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox < 72.
Which versions are affected by CVE-2019-17019?
It affects 1 product.
Products include Mozilla Firefox.
How do I fix CVE-2019-17019?
No fix has been published for CVE-2019-17019 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2019-17019 being exploited?
There is no known exploitation of CVE-2019-17019 in the wild and no public exploit code.
Other vulnerabilities in Mozilla Firefox
Sources
Also known as GHSA-r75w-mj28-6x5x, UBUNTU-CVE-2019-17019.