CVE-2018-6389

In WordPress through 4.9.2, unauthenticated attackers can cause a denial of service (resource consumption) by using the large list of registered .js files (from wp-includes/script-loader.php) to construct a series of requests to load every file many times.

Weakness

The product does not properly control the allocation and maintenance of a limited resource.

Affected Software

Potential Mitigations

• Mitigation of resource exhaustion attacks requires that the target system either:

• The first of these solutions is an issue in itself though, since it may allow attackers to prevent the use of the system by a particular valid user. If the attacker impersonates the valid user, they may be able to prevent the user from accessing the server in question.

• The second solution is simply difficult to effectively institute – and even when properly done, it does not provide a full solution. It simply makes the attack require more resources on the part of the attacker.

Related Attack Patterns

• https://cwe.mitre.org/data/definitions/147.html
• https://cwe.mitre.org/data/definitions/227.html
• https://cwe.mitre.org/data/definitions/492.html

References

• http://www.securityfocus.com/bid/103060
• http://www.securitytracker.com/id/1040347
• https://baraktawily.blogspot.fr/2018/02/how-to-dos-29-of-world-wide-websites.html
• https://github.com/UltimateHackers/Shiva
• https://github.com/WazeHell/CVE-2018-6389
• https://thehackernews.com/2018/02/wordpress-dos-exploit.html
• https://wpvulndb.com/vulnerabilities/9021
• https://www.exploit-db.com/exploits/43968/
• http://www.securityfocus.com/bid/103060
• http://www.securitytracker.com/id/1040347
• https://baraktawily.blogspot.fr/2018/02/how-to-dos-29-of-world-wide-websites.html
• https://github.com/UltimateHackers/Shiva
• https://github.com/WazeHell/CVE-2018-6389
• https://thehackernews.com/2018/02/wordpress-dos-exploit.html
• https://wpvulndb.com/vulnerabilities/9021
• https://www.exploit-db.com/exploits/43968/