6.1
MEDIUM
CVE-2024-7524
"Firefox - DOM Clobbering XSS in CSP Strict-Dynamic Mode"
Description

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.

INFO

Published Date :

Aug. 6, 2024, 1:15 p.m.

Last Modified :

Aug. 29, 2024, 5:35 p.m.

Remotely Exploitable :

Yes !

Impact Score :

2.7

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2024-7524 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Mozilla firefox
2 Mozilla firefox_esr
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2024-7524.

URL Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1909241 Issue Tracking Permissions Required
https://www.mozilla.org/security/advisories/mfsa2024-33/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-34/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-35/ Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2024-7524 vulnerability anywhere in the article.

  • Cyber Security News
Firefox Patches Multiple High Severity Vulnerabilities

Mozilla has released Firefox 129, addressing multiple high-severity vulnerabilities. These patches are critical for enhancing the browser’s security and protecting users from potential exploits. Detai ... Read more

Published Date: Aug 07, 2024 (3 months, 2 weeks ago)

The following table lists the changes that have been made to the CVE-2024-7524 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Aug. 29, 2024

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    Changed Reference Type https://bugzilla.mozilla.org/show_bug.cgi?id=1909241 No Types Assigned https://bugzilla.mozilla.org/show_bug.cgi?id=1909241 Issue Tracking, Permissions Required
    Changed Reference Type https://www.mozilla.org/security/advisories/mfsa2024-33/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2024-33/ Vendor Advisory
    Changed Reference Type https://www.mozilla.org/security/advisories/mfsa2024-34/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2024-34/ Vendor Advisory
    Changed Reference Type https://www.mozilla.org/security/advisories/mfsa2024-35/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2024-35/ Vendor Advisory
    Added CWE NIST CWE-79
    Added CPE Configuration OR *cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* versions up to (excluding) 129.0 *cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* versions up to (excluding) 115.14 *cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* versions from (including) 116.0 up to (excluding) 128.1
  • CVE Received by [email protected]

    Aug. 06, 2024

    Action Type Old Value New Value
    Added Description 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.
    Added Reference Mozilla Corporation https://bugzilla.mozilla.org/show_bug.cgi?id=1909241 [No types assigned]
    Added Reference Mozilla Corporation https://www.mozilla.org/security/advisories/mfsa2024-33/ [No types assigned]
    Added Reference Mozilla Corporation https://www.mozilla.org/security/advisories/mfsa2024-34/ [No types assigned]
    Added Reference Mozilla Corporation https://www.mozilla.org/security/advisories/mfsa2024-35/ [No types assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2024-7524 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2024-7524 weaknesses.

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability