Mozilla Fixes Tracking Protection Bypass Vulnerability in Firefox

CVE-2024-7524
6.1MEDIUM

Key Information

Vendor
Mozilla
Status
Firefox
Firefox Esr
Vendor
CVE Published:
6 August 2024

Summary

Firefox adds web-compatibility shims in place of some tracking scripts blocked by Enhanced Tracking Protection. On a site protected by Content Security Policy in "strict-dynamic" mode, an attacker able to inject an HTML element could have used a DOM Clobbering attack on some of the shims and achieved XSS, bypassing the CSP strict-dynamic protection. This vulnerability affects Firefox < 129, Firefox ESR < 115.14, and Firefox ESR < 128.1.

Affected Version(s)

Firefox < 129

Firefox ESR < 115.14

Firefox ESR < 128.1

CVSS V3.1

Score:
6.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published.

  • Vulnerability Reserved.

Collectors

NVD DatabaseMitre Database

Credit

Masato Kinugawa
.