Jump to content

Hacker Technology

A group blog by Leader in Hacker Website - Providing Professional Ethical Hacking Services

  • Entries

    16114

  • Comments

    7952

  • Views

    863573012

Contributors to this blog

  • HireHackking 16114

About this blog

Hacking techniques include penetration testing, network security, reverse cracking, malware analysis, vulnerability exploitation, encryption cracking, social engineering, etc., used to identify and fix security flaws in systems.

HireHackking 
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