Security restrictions bypass in Mozilla Firefox

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU29631

Risk: Medium

CVSSv4.0: 1.2 [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 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

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.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Mozilla Firefox: 70.0 - 78.0.1

CPE2.3

• cpe:2.3:a:mozilla:mozilla_firefox:70.0:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:mozilla_firefox:70.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:mozilla_firefox:71.0:*:*:*:*:*:*:*

External links

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

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.