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CommPort 1.01 SQL Injection

CommPort 1.01 SQL Injection
Posted Aug 28, 2012
Authored by Jean Pascal Pereira

CommPort version 1.01 suffers from a remote SQL injection vulnerability.

tags | exploit, remote, sql injection
MD5 | af1ed977298a27b618113fe30dc88a72

CommPort 1.01 SQL Injection

Change Mirror Download
--------------------------------------------
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.

----------------------------------------------------
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