Advanced Guestbook Password Parameter SQL Injection Vulnerability

Bugtraq ID:	10209
Class:	Input Validation Error
CVE:
Remote:	Yes
Local:	No
Published:	Apr 23 2004 12:00AM
Updated:	Apr 23 2004 12:00AM
Credit:	Discovery is credited to JQ <[email protected]>.
Vulnerable:	Advanced Guestbook Advanced Guestbook 2.2
Not Vulnerable:	Advanced Guestbook Advanced Guestbook 2.3.1

Advanced Guestbook Password Parameter SQL Injection Vulnerability

It has been reported that Advanced Guestbook is prone to a SQL injection vulnerability that could allow an attacker to gain administrative access to the application.

This issue is reported to exist in Advanced Guestbook 2.2, however, it is possible that other versions are affected as well.

Advanced Guestbook Password Parameter SQL Injection Vulnerability

No exploit is required. The following proof of concept exploits have been provided:

JQ <[email protected]> explains that it is possible to trigger this issue by leaving the username entry blank and entering the following string in the password field:

') OR ('a' = 'a

Spy Hat <[email protected]> comments that it is also possible to leverage this issue by leaving the password field blank and entering the following string into the username field:

? or 1=1 --

Advanced Guestbook Password Parameter SQL Injection Vulnerability

Solution:
This vulnerability is reportedly fixed in version 2.3.1. This has not been confirmed by Symantec.


Advanced Guestbook Advanced Guestbook 2.2

• Advanced Guestbook Advanced Guestbook 2.3.1
  

Advanced Guestbook Password Parameter SQL Injection Vulnerability

References:

• Advanced Guestbook Homepage (Advanced Guestbook)
  
• Advanced Guestbook Input Validation Hole in Password String Permits SQL Injectio (SecurityTracker)
  
• Advanced Guestbook 2.2 -- SQL Injection Exploit (JQ )
  
• Re: Advanced Guestbook 2.2 -- SQL Injection Exploit ()