CVE-2019-11761

By using a form with a data URI it was possible to gain access to the privileged JSONView object that had been cloned into content. Impact from exposing this object appears to be minimal, however it was a bypass of existing defense in depth mechanisms. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.

CVSS v3.0 5.4 MEDIUM
CVSS v2.0 5.8 MEDIUM

5.4^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

5.8^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.6 / Impact : 4.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://www.mozilla.org/security/advisories/mfsa2019-35/	Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1561502	Permissions Required
https://www.mozilla.org/security/advisories/mfsa2019-34/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-33/	Vendor Advisory
https://security.gentoo.org/glsa/202003-10
https://usn.ubuntu.com/4335-1/

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mozilla:firefox::::::::
	cpe:2.3:a:mozilla:firefox_esr::::::::
	cpe:2.3:a:mozilla:thunderbird::::::::

Information

Published : 2020-01-08 20:15

Updated : 2020-08-24 17:37

NVD link : CVE-2019-11761

Mitre link : CVE-2019-11761

JSON object : View

Products Affected

mozilla

firefox_esr
thunderbird
firefox

CWE

CWE-862

Missing Authorization

CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

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