CVE-2021-29971

If a user had granted a permission to a webpage and saved that grant, any webpage running on the same host - irrespective of scheme or port - would be granted that permission. *This bug only affects Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 90.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

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

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1713638	Issue Tracking Permissions Required
https://www.mozilla.org/security/advisories/mfsa2021-28/	Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

12 Aug 2021, 16:53

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : 7.5 v3 : 9.8
References	~~(MISC) https://bugzilla.mozilla.org/show_bug.cgi?id=1713638 -~~	(MISC) https://bugzilla.mozilla.org/show_bug.cgi?id=1713638 - Issue Tracking, Permissions Required
References	~~(MISC) https://www.mozilla.org/security/advisories/mfsa2021-28/ -~~	(MISC) https://www.mozilla.org/security/advisories/mfsa2021-28/ - Vendor Advisory
CPE		cpe:2.3:a:mozilla:firefox::::::android::*
CWE		CWE-281

05 Aug 2021, 20:39

Type	Values Removed	Values Added
New CVE

Information

Published : 2021-08-05 20:15

Updated : 2023-12-10 13:55

NVD link : CVE-2021-29971

Mitre link : CVE-2021-29971

CVE.ORG link : CVE-2021-29971

JSON object : View

Products Affected

mozilla

firefox

CWE

CWE-281

Improper Preservation of Permissions

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