cve/2019/CVE-2019-17009.md

### [CVE-2019-17009](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17009)
![](https://img.shields.io/static/v1?label=Product&message=Firefox%20ESR&color=blue)
![](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=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Updater%20temporary%20files%20accessible%20to%20unprivileged%20processes&color=brighgreen)

### Description

When running, the updater service wrote status and log files to an unrestricted location; potentially allowing an unprivileged process to locate and exploit a vulnerability in file handling in the updater service. *Note: This attack requires local system access and only affects Windows. Other operating systems are not affected.*. This vulnerability affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox < 71.

### POC

#### Reference
- https://bugzilla.mozilla.org/show_bug.cgi?id=1510494
- https://www.mozilla.org/security/advisories/mfsa2019-38/

#### Github
No PoCs found on GitHub currently.