Wildfly – ‘WEB-INF’ / ‘META-INF’ Information Disclosure via Filter Restriction Bypass
Exploit Title: Wildfly: WEB-INF and META-INF Information Disclosure via Filter Restriction Bypass Date: 09.02.16 Exploit Author: Tal Solomon of Palantir Security Vendor Homepage: https://bugzilla.redhat.com/show_bug.cgi?id=1305937 Software Link: http://wildfly.org/downloads/ Version: This issue effects versions of Wildfly prior to 10.0.0.Final, including 9.0.2.Final, and 8.2.1.Final. Tested on: Windows CVE : CVE-2016-0793 An information disclosure of the content of restricted files WEB-INF and META-INF via filter mechanism was reported. Servlet filter restriction mechanism is enforced by two code checks: if (path.startsWith("/META-INF") || path.startsWith("META-INF") || path.startsWith("/WEB-INF") || path.startsWith("WEB-INF")) { return false; } private boolean isForbiddenPath(String path) { return path.equalsIgnoreCase("/meta-inf/") || path.regionMatches(true, 0, "/web-inf/", 0, "/web-inf/".length()); } which can be bypassed using lower case and adding meaningless character to path. Proof of Concept Video: https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/39573.zip |