Permissions, Privileges, and Access Controls in Mozilla Firefox - CVE-2020-15648

Vulnerability identifier: #VU29631

CSH Severity: Medium

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

CVE-ID: CVE-2020-15648

CWE-ID: CWE-264

Exploitation vector: Remote access

Exploit availability: No public exploit available

Affected software:
Mozilla Firefox
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Enterprise Linux Server - TUS
Opensuse
Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
firefox (Red Hat package)
Mozilla Thunderbird

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to Firefox does not correctly enforce he X-Frame-Options header. A remote attacker can create a specially crafted web page and frame other websites using object or embed tags.

Install updates from vendor's website.

• https://www.mozilla.org/en-US/security/advisories/mfsa2020-28/