Vulnerability · Published May 26, 2020 · Assigned by mozilla
CVE-2020-12392
Medium 5.5
In plain English
A medium-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 0.3% (higher than 28% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.3%top 71.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | firefox | 76.0-r0 | ALPINE-CVE-2020-12392 |
| Alpine:v3.21 | firefox | 76.0-r0 | ALPINE-CVE-2020-12392 |
| Alpine:v3.22 | firefox | 76.0-r0 | ALPINE-CVE-2020-12392 |
| Alpine:v3.23 | firefox | 76.0-r0 | ALPINE-CVE-2020-12392 |
| Alpine:v3.20 | firefox-esr | 68.8.0-r0 | ALPINE-CVE-2020-12392 |
| Alpine:v3.21 | firefox-esr | 68.8.0-r0 | ALPINE-CVE-2020-12392 |
| Alpine:v3.22 | firefox-esr | 68.8.0-r0 | ALPINE-CVE-2020-12392 |
| Alpine:v3.23 | firefox-esr | 68.8.0-r0 | ALPINE-CVE-2020-12392 |
| Alpine:v3.21 | librewolf | 76.0-r0 | ALPINE-CVE-2020-12392 |
| Alpine:v3.22 | librewolf | 76.0-r0 | ALPINE-CVE-2020-12392 |
| Alpine:v3.23 | librewolf | 76.0-r0 | ALPINE-CVE-2020-12392 |
| Alpine:v3.24 | librewolf | 76.0-r0 | ALPINE-CVE-2020-12392 |
| Alpine:v3.20 | thunderbird | 68.8.0-r0 | ALPINE-CVE-2020-12392 |
| Alpine:v3.21 | thunderbird | 68.8.0-r0 | ALPINE-CVE-2020-12392 |
| Alpine:v3.22 | thunderbird | 68.8.0-r0 | ALPINE-CVE-2020-12392 |
| Alpine:v3.23 | thunderbird | 68.8.0-r0 | ALPINE-CVE-2020-12392 |
| Debian:12 | firefox-esr | 68.8.0esr-1 | DEBIAN-CVE-2020-12392 |
| Debian:13 | firefox-esr | 68.8.0esr-1 | DEBIAN-CVE-2020-12392 |
| Debian:14 | firefox-esr | 68.8.0esr-1 | DEBIAN-CVE-2020-12392 |
| Debian:12 | thunderbird | 1:68.8.0-1 | DEBIAN-CVE-2020-12392 |
| Debian:13 | thunderbird | 1:68.8.0-1 | DEBIAN-CVE-2020-12392 |
| Debian:14 | thunderbird | 1:68.8.0-1 | DEBIAN-CVE-2020-12392 |
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=1614468 x_refsource_MISC
- USN-4373-1 vendor-advisory, x_refsource_UBUNTU
- https://security.gentoo.org/glsa/202005-03 x_refsource_MISC
- https://security.gentoo.org/glsa/202005-04 x_refsource_MISC