The 'Copy as cURL' feature of Devtools' network tab did not properly escape the HTTP POST data of a request, which can be controlled by the website. If a user used the 'Copy as cURL' feature and pasted the command into a terminal, it could have resulted in the disclosure of local files. This vulnerability affects Firefox ESR < 68.8, Firefox < 76, and Thunderbird < 68.8.0.
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
| Link | Tags |
|---|---|
| https://www.mozilla.org/security/advisories/mfsa2020-18/ | vendor advisory |
| https://www.mozilla.org/security/advisories/mfsa2020-16/ | vendor advisory |
| https://www.mozilla.org/security/advisories/mfsa2020-17/ | vendor advisory |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1614468 | issue tracking permissions required |
| https://usn.ubuntu.com/4373-1/ | third party advisory vendor advisory |
| https://security.gentoo.org/glsa/202005-03 | third party advisory |
| https://security.gentoo.org/glsa/202005-04 | third party advisory |