CVE-2023-28161 Security feature bypass in Firefox
Firefox fails to revoke temporary permissions for file URLs, allowing persistent access to sensitive features like the camera across different local documents.
- 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-2023-28161?
CVE-2023-28161 is a high-severity vulnerability in Mozilla Firefox, published on 2 Jun 2023. 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
If temporary "one-time" permissions, such as the ability to use the Camera, were granted to a document loaded using a file: URL, that permission persisted in that tab for all other documents loaded from a file: URL. This is potentially dangerous if the local files came from different sources, such as in a download directory. This vulnerability affects Firefox < 111.
Weakness: CWE-281
Which versions are affected by CVE-2023-28161?
It affects 1 product.
Products include Mozilla Firefox.
How do I fix CVE-2023-28161?
Upgrade to a fixed version.
Is CVE-2023-28161 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-28161 exists.
Other vulnerabilities in Mozilla Firefox
Sources
Also known as GHSA-q6w2-jc9g-66qv, UBUNTU-CVE-2023-28161.