Permissions, Privileges, and Access Controls in Mozilla Firefox - CVE-2020-6823
Published: April 7, 2020
Vulnerability identifier: #VU26651
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-6823
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Mozilla
Affected software:
Mozilla Firefox
Mozilla Firefox
Detailed vulnerability description
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to incorrect processing of extension permissions. A malicious extension could have called browser.identity.launchWebAuthFlow,
controlling the redirect_uri, and through the Promise returned, obtain
the Auth code and gain access to the user's account at the service
provider.
How to mitigate CVE-2020-6823
Install updates from vendor's website.