CVE-2020-26976

When a HTTPS pages was embedded in a HTTP page, and there was a service worker registered for the former, the service worker could have intercepted the request for the secure page despite the iframe not being a secure context due to the (insecure) framing. This vulnerability affects Firefox < 84.

CVSS v3.0 6.5 MEDIUM
CVSS v2.0 4.3 MEDIUM

6.5^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:N/I:P/A:N

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://www.mozilla.org/security/advisories/mfsa2020-54/	Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1674343	Issue Tracking Permissions Required Vendor Advisory
https://www.debian.org/security/2021/dsa-4840	Third Party Advisory
https://security.gentoo.org/glsa/202102-02	Third Party Advisory
https://www.debian.org/security/2021/dsa-4842	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/02/msg00001.html	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/02/msg00002.html	Mailing List Third Party Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:9.0:::::::*
	cpe:2.3:o:debian:debian_linux:10.0:::::::*

Information

Published : 2021-01-07 06:15

Updated : 2021-02-14 17:11

NVD link : CVE-2020-26976

Mitre link : CVE-2020-26976

JSON object : View

CWE

NVD-CWE-noinfo

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Products Affected

mozilla

firefox

debian

debian_linux

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