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Origin Validation Error Affecting firefox package, versions <82.0-1

0.0
medium

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Integrity High

    Threat Intelligence

    EPSS 0.08% (34th percentile)
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NVD
6.5 medium

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  • Snyk ID SNYK-DEBIANUNSTABLE-FIREFOX-1019572
  • published 21 Oct 2020
  • disclosed 22 Oct 2020
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Introduced: 21 Oct 2020

CVE-2020-15682 Open this link in a new tab
CWE-346 Open this link in a new tab

How to fix?

Upgrade Debian:unstable firefox to version 82.0-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

When a link to an external protocol was clicked, a prompt was presented that allowed the user to choose what application to open it in. An attacker could induce that prompt to be associated with an origin they didn't control, resulting in a spoofing attack. This was fixed by changing external protocol prompts to be tab-modal while also ensuring they could not be incorrectly associated with a different origin. This vulnerability affects Firefox < 82.