Description
An issue was discovered in Squid before 4.9. When handling a URN request, a corresponding HTTP request is made. This HTTP request doesn't go through the access checks that incoming HTTP requests go through. This causes all access checks to be bypassed and allows access to restricted HTTP servers, e.g., an attacker can connect to HTTP servers that only listen on localhost.
Remediation
References
Related Vulnerabilities
Oracle JRE CVE-2013-2437 Vulnerability (CVE-2013-2437)
WordPress Plugin Font Uploader 'font-upload.php' Arbitrary File Upload (1.2.4)
WordPress 4.3.x Multiple Vulnerabilities (4.3 - 4.3.24)
WordPress Plugin WP-Lister Lite for eBay Directory Traversal (2.0.20)
WordPress Plugin Newsletter by Supsystic Cross-Site Scripting (1.1.7)