Waraxe IT Security Portal
Login or Register
November 24, 2024
Menu
Home
Logout
Discussions
Forums
Members List
IRC chat
Tools
Base64 coder
MD5 hash
CRC32 checksum
ROT13 coder
SHA-1 hash
URL-decoder
Sql Char Encoder
Affiliates
y3dips ITsec
Md5 Cracker
User Manuals
AlbumNow
Content
Content
Sections
FAQ
Top
Info
Feedback
Recommend Us
Search
Journal
Your Account
User Info
Welcome, Anonymous
Nickname
Password
(Register)

Membership:
Latest: MichaelSnaRe
New Today: 0
New Yesterday: 0
Overall: 9144

People Online:
Visitors: 65
Members: 0
Total: 65
Full disclosure
APPLE-SA-11-19-2024-5 macOS Sequoia 15.1.1
Local Privilege Escalations in needrestart
APPLE-SA-11-19-2024-4 iOS 17.7.2 and iPadOS 17.7.2
APPLE-SA-11-19-2024-3 iOS 18.1.1 and iPadOS 18.1.1
APPLE-SA-11-19-2024-2 visionOS 2.1.1
APPLE-SA-11-19-2024-1 Safari 18.1.1
Reflected XSS - fronsetiav1.1
XXE OOB - fronsetiav1.1
St. Poelten UAS | Path Traversal in Korenix JetPort 5601
St. Poelten UAS | Multiple Stored Cross-Site Scripting in SEH utnserver Pro
Apple web content filter bypass allows unrestricted access to blocked content (macOS/iOS/iPadOS/visionO S/watchOS)
SEC Consult SA-20241112-0 :: Multiple vulnerabilities in Siemens Energy Omnivise T3000 (CVE-2024-38876, CVE-2024-38877, CVE-2024-38878, CVE-2024-38879)
Security issue in the TX Text Control .NET Server for ASP.NET.
SEC Consult SA-20241107-0 :: Multiple Vulnerabilities in HASOMED Elefant and Elefant Software Updater
Unsafe eval() in TestRail CLI
Log in Register Forum FAQ Memberlist Search
IT Security and Insecurity Portal

www.waraxe.us Forum Index -> Sql injection -> SQL Injection.
Post new topicReply to topic View previous topic :: View next topic
SQL Injection.
PostPosted: Thu Jan 28, 2010 11:45 am Reply with quote
RachelNJ
Beginner
Beginner
Joined: Jan 28, 2010
Posts: 3




Hi,

I'm trying some SQL injection for the first time and it is confusing the hell out of me.

How on earth do you find if something is vulnerable?

I have some software locally and on a website, I tried ' in login field and the result is:

Code:
Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in /home/xxxxx/public_html/xxx/xxx_login.php on line 85


What sort of thing should I be looking for and is there anyone who can take a look at this PHP software and tell me what to try to see if it is vulnerable to anything?

Been reading some guides and tutorials but have come out more confused than before.
View user's profile Send private message
PostPosted: Thu Jan 28, 2010 11:58 am Reply with quote
waraxe
Site admin
Site admin
Joined: May 11, 2004
Posts: 2407
Location: Estonia, Tartu




That error message indicates possible sql injection. But you don't have sql error feedback, so exploitation will be harder than in book examples.
Anyway, what's your goal? Are you intended to learn as much as possible about sql injections? Or you wanna just work with specific target?
View user's profile Send private message Send e-mail Visit poster's website
PostPosted: Thu Jan 28, 2010 12:03 pm Reply with quote
RachelNJ
Beginner
Beginner
Joined: Jan 28, 2010
Posts: 3




waraxe wrote:
That error message indicates possible sql injection. But you don't have sql error feedback, so exploitation will be harder than in book examples.
Anyway, what's your goal? Are you intended to learn as much as possible about sql injections? Or you wanna just work with specific target?


Bit of both, the goal is to exploit both of these (the site + software) and learn some in the process.

Where to from here?
View user's profile Send private message
PostPosted: Thu Jan 28, 2010 12:26 pm Reply with quote
waraxe
Site admin
Site admin
Joined: May 11, 2004
Posts: 2407
Location: Estonia, Tartu




Do you have source code for that vulnerable software? With source and local test installation it is easy to make exploits work, because you can always implement debug methods - mysql_error, var_dump, ...
If you have remote target without knowing the source code ("black box"),
then start with getting sql injection syntax right.
By the way, have you read sql injection whitepapers and/or tutorials publicly available?
Anyway, if you have sql injection in login script, then there is mainly two different ways to exploit:
1. authentication bypass
2. traditional sql injection for data fetch (UNION, subselects, ...), file manipulation, etc

Authentication bypass may work on some targets, but not for all. And it may bring up anomalies in software behavior.
Traditional UNION tricks and things like that are better choice, but first I suggest you to try to find other sql injection points, for example in search script. It is alot better, if you have sql error feedback.

Now, you can try some tests:

Code:

' OR 'c'='c
' OR 3=3/*
') OR 3=3/*
')) OR 3=3/*


Look for response in each case - does it show errors or other anomalies in software behavior?
View user's profile Send private message Send e-mail Visit poster's website
PostPosted: Thu Jan 28, 2010 12:31 pm Reply with quote
RachelNJ
Beginner
Beginner
Joined: Jan 28, 2010
Posts: 3




waraxe wrote:
Do you have source code for that vulnerable software? With source and local test installation it is easy to make exploits work, because you can always implement debug methods - mysql_error, var_dump, ...
If you have remote target without knowing the source code ("black box"),
then start with getting sql injection syntax right.
By the way, have you read sql injection whitepapers and/or tutorials publicly available?
Anyway, if you have sql injection in login script, then there is mainly two different ways to exploit:
1. authentication bypass
2. traditional sql injection for data fetch (UNION, subselects, ...), file manipulation, etc

Authentication bypass may work on some targets, but not for all. And it may bring up anomalies in software behavior.
Traditional UNION tricks and things like that are better choice, but first I suggest you to try to find other sql injection points, for example in search script. It is alot better, if you have sql error feedback.

Now, you can try some tests:

Code:

' OR 'c'='c
' OR 3=3/*
') OR 3=3/*
')) OR 3=3/*


Look for response in each case - does it show errors or other anomalies in software behavior?


' OR 3=3/* produced no error messages, the other 3 produced same as in OP.

No source code on this one.
View user's profile Send private message
PostPosted: Thu Jan 28, 2010 2:13 pm Reply with quote
waraxe
Site admin
Site admin
Joined: May 11, 2004
Posts: 2407
Location: Estonia, Tartu




Seems to be sql injection without useful feedback - you must use blind injection methods and fetch data bit by bit. That's not for beginners, but I can show you some further tests, if you want to.
View user's profile Send private message Send e-mail Visit poster's website
SQL Injection.
www.waraxe.us Forum Index -> Sql injection
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
All times are GMT
Page 1 of 1

Post new topicReply to topic


Powered by phpBB © 2001-2008 phpBB Group



Space Raider game for Android, free download - Space Raider gameplay video - Zone Raider mobile games
All logos and trademarks in this site are property of their respective owner. The comments and posts are property of their posters, all the rest (c) 2004-2024 Janek Vind "waraxe"
Page Generation: 0.044 Seconds