SB2018020505 - Denial of service in WordPress
Published: February 5, 2018 Updated: February 9, 2018
Security Bulletin ID
SB2018020505
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Resource exhaustion (CVE-ID: CVE-2018-6389)
CWE-ID: CWE-400 - Resource exhaustion
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists in the server-side static file loading mechanism due to the way a built-in script in WordPress CMS "load-scripts.php" processes user-defined requests. A remote attacker can send force load-scripts.php to call all possible JavaScript files, consume high CPU and server memory and cause the service to crash.
Remediation
Install update from vendor's website.