CVE-2023-34414

Severity CVSS v4.0:
Pending analysis
Type:
CWE-295 Improper Certificate Validation
Publication date:
19/06/2023
Last modified:
07/01/2024

Description

The error page for sites with invalid TLS certificates was missing the<br /> activation-delay Firefox uses to protect prompts and permission dialogs<br /> from attacks that exploit human response time delays. If a malicious<br /> page elicited user clicks in precise locations immediately before<br /> navigating to a site with a certificate error and made the renderer<br /> extremely busy at the same time, it could create a gap between when<br /> the error page was loaded and when the display actually refreshed.<br /> With the right timing the elicited clicks could land in that gap and <br /> activate the button that overrides the certificate error for that site. This vulnerability affects Firefox ESR

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* 114.0 (excluding)
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* 102.12 (excluding)
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* 102.12 (excluding)