EV0058.txt

`New eVuln Advisory:  
phphg Guestbook Multiple Vulnerabilities  
http://evuln.com/vulns/58/summary.html  
  
--------------------Summary----------------  
eVuln ID: EV0058  
CVE: CVE-2006-0602 CVE-2006-0603 CVE-2006-0604  
Vendor: Hinton Design  
Vendor's Web Site: http://www.hintondesign.org  
Software: phphg Guestbook  
Sowtware's Web Site: http://www.hintondesign.org/downloads/view_cat.php?cat_id=45  
Versions: 1.2  
Critical Level: Moderate  
Type: Multiple Vulnerabilities  
Class: Remote  
Status: Unpatched. No reply from developer(s)  
Exploit: Available  
Solution: Not Available  
Discovered by: Aliaksandr Hartsuyeu (eVuln.com)  
  
-----------------Description---------------  
1. Authentication Bypass  
Vulnerable script: check.php  
  
There are two ways to bypass authentication:  
  
a) SQL Injection  
Variable $HTTP_POST_VARS[username] isn't properly sanitized before being used in a SQL query. This can be used to make any SQL query by injecting arbitrary SQL code.  
Condition: magic_quotes_gpc - off  
  
b) Cookie based authentication  
check.php script dont make password comparisson when identifying user by cookies  
  
  
2. Multiple Cross-Site Scripting  
Vulnerable script: signed.php  
Variables $HTTP_POST_VARS[location] $HTTP_POST_VARS[website] $HTTP_POST_VARS[message] are not properly sanitized. This can be used to post arbitrary html or script code.  
  
  
3. SQL Injections in administrator control panel  
Vulnerable scripts:  
admin/edit_smilie.php  
admin/add_theme.php  
admin/ban_ip.php  
admin/add_lang  
admin/edit_filter  
  
Variable $HTTP_GET_VARS[id] variable isn't properly sanitized. This can be used to make any SQL query by injecting arbitrary SQL code.  
Condition: magic_quotes_gpc - off  
  
--------------Exploit----------------------  
Available at: http://evuln.com/vulns/58/exploit.html  
  
1. Authentication Bypass  
  
a) SQL Injection  
url: http://host/hg/admin.php  
Username: ' or 1/*  
Password: any  
  
b) Cookie based authentication  
Cookie: loged=yes  
Cookie: username=admin  
Cookie: user_level=1  
  
  
2. Cross-Site Scripting Example.  
Url: http://host/hg/sign.php  
Location: <XSS>  
Website: javascript:alert(123)  
Message: <XSS>  
  
  
3. SQL Injection Example:  
http://host/hg/admin/edit_smilie.php? id=333'% 20union%20select% 201,2,3,4/*  
  
  
--------------Solution---------------------  
No Patch available.  
  
--------------Credit-----------------------  
Discovered by: Aliaksandr Hartsuyeu (eVuln.com)  
`