8.8

CVE-2020-6811: canonical ubuntu_linux Command Injection

CVSS: 8.8v3.1HighModified
AliasesUBUNTU-CVE-2020-6811DEBIAN-CVE-2020-6811
Published 25-03-2020Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-6811 is a high (CVSS 8.8) Command Injection vulnerability in canonical ubuntu_linux. EPSS estimates a 3.27% chance of exploitation in the next 30 days, higher than 88.2% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
46/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (NVD)
EPSS score
3.27%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 26 · Related 12
DLA-2140-1DLA-2150-1DSA-4639-1DSA-4642-1MGASA-2020-0141MGASA-2020-0142

Timeline

  1. 25-03-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

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. This vulnerability affects Thunderbird < 68.6, Firefox < 74, Firefox < ESR68.6, and Firefox ESR < 68.6.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

3.27%

Chance of exploitation in the next 30 days

Percentile

88%

Versus all other CVEs

30-day change

0.00 pp

From 3.27% on 19-09-2026

19-09-202619-10-2026
EPSS score
3.27%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (bugzilla.mozilla.org)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Ubuntu4 products
  • firefox< 74.0+build3-0ubuntu0.16.04.1 | < 74.0+build3-0ubuntu0.18.04.1 | < 74.0+build3-0ubuntu1
  • mozjs38All versions (No fix recorded)
  • mozjs52All versions (No fix recorded)
  • thunderbird< 1:68.7.0+build1-0ubuntu0.16.04.2 | < 1:68.7.0+build1-0ubuntu0.18.04.1 | < 1:68.6.0+build2-0ubuntu1
Mozilla3 products
  • firefox≥ unspecified, < 74 | ≥ unspecified, < ESR68.6 | < 74.0
  • firefox_esr≥ unspecified, < 68.6 | < 68.6.0
  • thunderbird≥ unspecified, < 68.6 | < 68.6.0
Debian2 products
  • firefox-esr< 68.6.0esr-1
  • thunderbird< 1:68.6.0-1
Canonical1 product

4 vendors · 10 products

References

14 links
Show all 14 references