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Firefox browser.downloads addon Remote Code Execute (PoC) Vulnerability
| Reporter | Title | Published | Views | Family All 30 |
|---|---|---|---|---|
 | mozilla -- multiple vulnerabilities | 28 Sep 201700:00 | – | freebsd |
 | Mozilla Firefox < 56 Multiple Vulnerabilities | 21 Aug 201800:00 | – | nessus |
| FreeBSD : mozilla -- multiple vulnerabilities (1098a15b-b0f6-42b7-b5c7-8a8646e8be07) | 29 Sep 201700:00 | – | nessus |
| Mozilla Firefox < 56 Multiple Vulnerabilities (macOS) | 6 Oct 201700:00 | – | nessus |
| Mozilla Firefox < 56.0 | 18 Nov 202500:00 | – | nessus |
| Mozilla Firefox < 56.0 | 6 Oct 201700:00 | – | nessus |
| Ubuntu 14.04 LTS / 16.04 LTS : Firefox vulnerabilities (USN-3435-1) | 3 Oct 201700:00 | – | nessus |
 | The vulnerability of Mozilla Firefox’s WebExtensions module allows attackers to increase their privileges. | 20 Jan 202100:00 | – | bdu_fstec |
 | Mozilla Firefox File Download Vulnerability | 29 Sep 201700:00 | – | cnvd |
 | CVE-2017-7821 | 11 Jun 201821:00 | – | cve |
10
(CVE-2017-7821)
"browser.downloads addon feature may be used for RCE"
Steps:
1. Go to 'about:debugging'
2. Unpack attached PoC somewhere
3. Back in 'about:debugging' choose 'Load temp addon' and choose the poc
4. jar file is automatically downloaded and executed.
We are able to download and execute jar files automatically.
PoC Web Extention:
http://leucosite.com/CVE-2017-7821.zip
Reference:
https://bugzilla.mozilla.org/show_bug.cgi?id=1346515
https://www.mozilla.org/en-US/security/advisories/mfsa2017-21/#CVE-2017-7821
# 0day.today [2018-01-04] #Data
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29 Sep 2017 00:00Current
9.2High risk
Vulners AI Score9.2
EPSS0.02595