CVE-2024-32986 Arbitrary code execution due to improper sanitization of web app properties in PWAsForFirefox
Malicious web apps can inject code into desktop entries on Linux and PortableApps, allowing arbitrary code execution when launched.
- 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-2024-32986?
CVE-2024-32986 is a critical code injection vulnerability in filips123 PWAsForFirefox, published on 3 May 2024. 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
PWAsForFirefox is a tool to install, manage and use Progressive Web Apps (PWAs) in Mozilla Firefox. Due to improper sanitization of web app properties (such as name, description, shortcuts), web apps were able to inject additional lines into XDG Desktop Entries (on Linux) and `AppInfo.ini` (on PortableApps.com). This allowed malicious web apps to introduce keys like `Exec`, which could run arbitrary code when the affected web app was launched. This vulnerability affects all Linux and PortableApps.com users of all PWAsForFirefox versions up to (excluding) 2.12.0. Windows and macOS users are not affected. This vulnerability has been fixed in commit `9932d4b` which has been included in release in v2.12.0. The main fix is implemented in the native part, but the extension also contains additional fixes. All Linux and PortableApps.com users are advised to update to this version as soon as possible. It is also recommended for Windows and macOS users to update to this version, as it contains additional fixes related to properties sanitization. There are no known workarounds for this vulnerability.
Which versions are affected by CVE-2024-32986?
How do I fix CVE-2024-32986?
No fix has been published for CVE-2024-32986 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-2024-32986 being exploited?
There is no known exploitation of CVE-2024-32986 in the wild and no public exploit code.
Sources
Also known as GHSA-jmhv-m7v5-g5jq.