Vulnerability · Published May 26, 2020 · Assigned by mozilla
CVE-2020-12393
High 7.8
In plain English
A high-severity security flaw in Firefox from Mozilla. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 63% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
The 'Copy as cURL' feature of Devtools' network tab did not properly escape the HTTP method 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 command injection and arbitrary command execution. *Note: this issue only affects Firefox on Windows operating systems.*. This vulnerability affects Firefox ESR < 68.8, Firefox < 76, and Thunderbird < 68.8.0.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | firefox | 76.0-r0 | ALPINE-CVE-2020-12393 |
| Alpine:v3.21 | firefox | 76.0-r0 | ALPINE-CVE-2020-12393 |
| Alpine:v3.22 | firefox | 76.0-r0 | ALPINE-CVE-2020-12393 |
| Alpine:v3.23 | firefox | 76.0-r0 | ALPINE-CVE-2020-12393 |
| Alpine:v3.20 | firefox-esr | 68.8.0-r0 | ALPINE-CVE-2020-12393 |
| Alpine:v3.21 | firefox-esr | 68.8.0-r0 | ALPINE-CVE-2020-12393 |
| Alpine:v3.22 | firefox-esr | 68.8.0-r0 | ALPINE-CVE-2020-12393 |
| Alpine:v3.23 | firefox-esr | 68.8.0-r0 | ALPINE-CVE-2020-12393 |
| Alpine:v3.21 | librewolf | 76.0-r0 | ALPINE-CVE-2020-12393 |
| Alpine:v3.22 | librewolf | 76.0-r0 | ALPINE-CVE-2020-12393 |
| Alpine:v3.23 | librewolf | 76.0-r0 | ALPINE-CVE-2020-12393 |
| Alpine:v3.24 | librewolf | 76.0-r0 | ALPINE-CVE-2020-12393 |
| Alpine:v3.20 | thunderbird | 68.8.0-r0 | ALPINE-CVE-2020-12393 |
| Alpine:v3.21 | thunderbird | 68.8.0-r0 | ALPINE-CVE-2020-12393 |
| Alpine:v3.22 | thunderbird | 68.8.0-r0 | ALPINE-CVE-2020-12393 |
| Alpine:v3.23 | thunderbird | 68.8.0-r0 | ALPINE-CVE-2020-12393 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox ESR | unspecified – before 68.8 |
| Mozilla | Firefox | unspecified – before 76 |
| Mozilla | Thunderbird | unspecified – before 68.8.0 |
References
- https://www.mozilla.org/security/advisories/mfsa2020-18/ x_refsource_MISC
- https://www.mozilla.org/security/advisories/mfsa2020-16/ x_refsource_MISC
- https://www.mozilla.org/security/advisories/mfsa2020-17/ x_refsource_MISC
- https://bugzilla.mozilla.org/show_bug.cgi?id=1615471 x_refsource_MISC