CVE-2019-9812

Given a compromised sandboxed content process due to a separate vulnerability, it is possible to escape that sandbox by loading accounts.firefox.com in that process and forcing a log-in to a malicious Firefox Sync account. Preference settings that disable the sandbox are then synchronized to the local machine and the compromised browser would restart without the sandbox if a crash is triggered. This vulnerability affects Firefox ESR < 60.9, Firefox ESR < 68.1, and Firefox < 69.

CVSS v3.0 9.3 CRITICAL
CVSS v2.0 5.8 MEDIUM

9.3^/10

CVSS v3.0 : CRITICAL

Vector :

Exploitability : 2.8 / Impact : 5.8

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

5.8^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.6 / Impact : 4.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1538008	Permissions Required
https://www.mozilla.org/security/advisories/mfsa2019-27/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-25/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-26/	Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1538015	Permissions Required

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Configurations

Configuration 1 (hide)

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

Information

Published : 2020-01-08 14:15

Updated : 2021-07-21 04:39

NVD link : CVE-2019-9812

Mitre link : CVE-2019-9812

JSON object : View

CWE

NVD-CWE-noinfo

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Products Affected

mozilla

firefox
firefox_esr

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