// For flags

CVE-2020-15677

Mozilla: Download origin spoofing via redirect

Severity Score

6.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

By exploiting an Open Redirect vulnerability on a website, an attacker could have spoofed the site displayed in the download file dialog to show the original site (the one suffering from the open redirect) rather than the site the file was actually downloaded from. This vulnerability affects Firefox < 81, Thunderbird < 78.3, and Firefox ESR < 78.3.

Al explotar una vulnerabilidad de Redireccionamiento Abierto en un sitio web, un atacante podría haber falsificado el sitio que es mostrado en el cuadro de diálogo del archivo de descarga para mostrar el sitio original (el que sufre el redireccionamiento abierto) en lugar del sitio del que se descargó el archivo realmente.&#xa0;Esta vulnerabilidad afecta a Firefox versiones anteriores a 81, Thunderbird versiones anteriores a 78.3, y Firefox ESR versiones anteriores a 78.3

The Mozilla Foundation Security Advisory describes this flaw as:

By exploiting an Open Redirect vulnerability on a website, an attacker could have spoofed the site displayed in the download file dialog to show the original site (the one suffering from the open redirect) rather than the site the file was actually downloaded from.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-07-10 CVE Reserved
  • 2020-09-24 CVE Published
  • 2024-08-04 CVE Updated
  • 2024-08-05 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-601: URL Redirection to Untrusted Site ('Open Redirect')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Mozilla
Search vendor "Mozilla"
 Firefox
Search vendor "Mozilla" for product "Firefox"
 < 81.0
Search vendor "Mozilla" for product "Firefox" and version " < 81.0"
-
Affected
Mozilla
Search vendor "Mozilla"
 Firefox Esr
Search vendor "Mozilla" for product "Firefox Esr"
 < 78.3
Search vendor "Mozilla" for product "Firefox Esr" and version " < 78.3"
-
Affected
Mozilla
Search vendor "Mozilla"
 Thunderbird
Search vendor "Mozilla" for product "Thunderbird"
 < 78.3
Search vendor "Mozilla" for product "Thunderbird" and version " < 78.3"
-
Affected
Debian
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 Debian Linux
Search vendor "Debian" for product "Debian Linux"
 9.0
Search vendor "Debian" for product "Debian Linux" and version "9.0"
-
Affected
Debian
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 Debian Linux
Search vendor "Debian" for product "Debian Linux"
 10.0
Search vendor "Debian" for product "Debian Linux" and version "10.0"
-
Affected
Opensuse
Search vendor "Opensuse"
 Leap
Search vendor "Opensuse" for product "Leap"
 15.1
Search vendor "Opensuse" for product "Leap" and version "15.1"
-
Affected
Opensuse
Search vendor "Opensuse"
 Leap
Search vendor "Opensuse" for product "Leap"
 15.2
Search vendor "Opensuse" for product "Leap" and version "15.2"
-
Affected