cve/2020/CVE-2020-6797.md

### [CVE-2020-6797](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6797)
![](https://img.shields.io/static/v1?label=Product&message=Firefox&color=blue)
![](https://img.shields.io/static/v1?label=Product&message=Thunderbird&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3C%2068.5%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Version&message=%3C%2073%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Extensions%20granted%20downloads.open%20permission%20could%20open%20arbitrary%20applications%20on%20Mac%20OSX&color=brighgreen)

### Description

By downloading a file with the .fileloc extension, a semi-privileged extension could launch an arbitrary application on the user's computer. The attacker is restricted as they are unable to download non-quarantined files or supply command line arguments to the application, limiting the impact. Note: this issue only occurs on Mac OSX. Other operating systems are unaffected. This vulnerability affects Thunderbird < 68.5, Firefox < 73, and Firefox < ESR68.5.

### POC

#### Reference
- https://bugzilla.mozilla.org/show_bug.cgi?id=1596668
- https://bugzilla.mozilla.org/show_bug.cgi?id=1596668

#### Github
- https://github.com/ARPSyndicate/cvemon