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Bugtraq - Submission by Dr-Hack "Reverse Character"
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Dr-Hack Offline
#1 Posted : Thursday, September 15, 2005 6:37:40 PM(UTC)
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Submission on Securityfocus.com on this Subject @ http://securityfocus.com/archive/1/410727/30/0/threaded



Name : Dr-Hack

Email : hackology@gmail.com

Subject : Character Manipulation in Online Systems.

Message :

Applicable to Almost all the discussion forums or places which require you an Email System...

Risk : Medium
(being just 18 years old, i can not write a very attractive article, but i will try my best)

I discovered this Trick after playing with Orkut, then tried it on some other Portals For INstance it has been checked with

Dotnetnuke
Rainbow Portal
VBBulletin
Invision Power Board
Orkut
Invision Power Board v2.0.4

Reaction :

THere is a "Reverse Character" which works on windows XP/200/2003 and NT Operating systems (not verfied on other OS's)
this "reverse Character is UNI-Code used to change the character line from left to the right
but if used in the forums and other places which require a "Username" it simply Vanishes as a Blank Character and the FORUM/PORTAL never generates an error of Illegal Character rather it simply accepts it ... but the actual Problem comes after this ...
few cases :
° Blank UserNames (neglecting the check of minnimum 3 visible characters)
° This is the most effected scenario ... any where your "reverse character" will come it will simply reverse the order of text on its front or back ... so if there is Module showing online users from last 60 Hours and your name comes on the first line then it will simply Reverse the Text of the First Line, Not only for YOu but also for everyuser visiting the forum.
° It messes up with Forum/Portal Newsletters and Notifications via Email's as you username gets used in many places ...
° SIte Admin dont like such effects but rather then deleting the account its wise to substitute the name with there email ID (before the "@" part )
Example text below.
‮Example Text Below.

The 2nd line used the Reverse Character and the reverse Character is placed in the next line copy from there.
‮
Or Download the Text File containing reverse Character for Convenience
File Attachment(s):
reverse-cha.txt (1kb) downloaded 229 time(s).

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Dr-Hack Offline
#2 Posted : Thursday, September 15, 2005 7:51:23 PM(UTC)
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Well I have found the ASCII representation of the Reverse Character...


May be someone can pop few lines i am bored here all alone


This has the same affect as the Reverse Character but Visible Smile to enter not after wards ‮





Thanks
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abidkhan Offline
#3 Posted : Friday, February 18, 2011 3:24:33 AM(UTC)
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‮wow man amazing as well as intersting

What a nyc sharing

thnkx alot!
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Naveed AHmed Offline
#4 Posted : Friday, February 18, 2011 3:29:51 AM(UTC)
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Naveed AHmed


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wow man amazing as well as intersting

What a cyn sharing

thankxx alot!
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Dr-Hack Offline
#5 Posted : Friday, February 18, 2011 7:54:34 AM(UTC)
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Angel
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abidkhan Offline
#6 Posted : Monday, February 21, 2011 1:47:01 AM(UTC)
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Hey Drhack Help
what is it for &#8238 and can we that how u got this?
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Dr-Hack Offline
#7 Posted : Monday, February 21, 2011 1:45:23 PM(UTC)
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Dr-Hack


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Originally Posted by: abidkhan Go to Quoted Post
Hey Drhack Help
what is it for &#8238 and can we that how u got this?



sorry i didnt understand you . ..can you explain what you trying to say ?
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abidkhan Offline
#8 Posted : Monday, February 21, 2011 3:06:05 PM(UTC)
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abidkhan


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Medals: Medal of Appreciation: The owner of this Medal has shown great participation in learning, helping and contributing ...

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Originally Posted by: Dr-Hack Go to Quoted Post
Well I have found the ASCII representation of the Reverse Character...


May be someone can pop few lines i am bored here all alone


This has the same affect as the Reverse Character but Visible Smile to enter not after wards ‮





Thanks

actually dont get this wht it is?.../ Wink

oh my bad!Blackened eye can we know that how u got this reverse character?.../
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Dr-Hack Offline
#9 Posted : Monday, February 20, 2012 5:11:35 PM(UTC)
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Dr-Hack


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Medals: .::Hackology::. Founders: This medal is earned by the Founders of .::Hackology::. . Those who have a great part in setting up

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Thanks: 19 times
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lol.. just saw this post of yours Big Grin ..
ahh its soo cold, lol . well As i wrote above its used in OS to make the text appear from right to left , so i just got hold of some Arabic application source so with in the source i found this Uni character Wink
fun part is that this thing still works tongue :p
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abidkhan Offline
#10 Posted : Tuesday, February 21, 2012 7:46:03 PM(UTC)
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abidkhan


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Medals: Medal of Appreciation: The owner of this Medal has shown great participation in learning, helping and contributing ...

Joined: 1/26/2011(UTC)
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Was thanked: 9 time(s) in 8 post(s)
Got it now.. Wink
Well thanks for sharing this Uni character with us.
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Dr-Hack Offline
#11 Posted : Wednesday, February 22, 2012 1:06:24 AM(UTC)
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Dr-Hack


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Medals: .::Hackology::. Founders: This medal is earned by the Founders of .::Hackology::. . Those who have a great part in setting up

Joined: 1/16/2005(UTC)
Posts: 1,105

Thanks: 19 times
Was thanked: 46 time(s) in 41 post(s)
Yeah, it still holds valid so why dont you try using it as a username somewhere to see Wink
Wondering if such more characters can be discovered because things are getting to limited with soo many checks.
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