Waraxe IT Security Portal
Login or Register
November 18, 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: 66
Members: 0
Total: 66
Full disclosure
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
4 vulnerabilities in ibmsecurity
32 vulnerabilities in IBM Security Verify Access
xlibre Xnest security advisory & bugfix releases
APPLE-SA-10-29-2024-1 Safari 18.1
SEC Consult SA-20241030-0 :: Query Filter Injection in Ping Identity PingIDM (formerly known as ForgeRock Identity Management) (CVE-2024-23600)
SEC Consult SA-20241023-0 :: Authenticated Remote Code Execution in Multiple Xerox printers (CVE-2024-6333)
APPLE-SA-10-28-2024-8 visionOS 2.1
APPLE-SA-10-28-2024-7 tvOS 18.1
APPLE-SA-10-28-2024-6 watchOS 11.1
APPLE-SA-10-28-2024-5 macOS Ventura 13.7.1
APPLE-SA-10-28-2024-4 macOS Sonoma 14.7.1
Log in Register Forum FAQ Memberlist Search
IT Security and Insecurity Portal

www.waraxe.us Forum Index -> Php -> defeating crypt() funtions
Post new topicReply to topic View previous topic :: View next topic
defeating crypt() funtions
PostPosted: Mon Apr 11, 2005 8:48 am Reply with quote
y3dips
Valuable expert
Valuable expert
Joined: Feb 25, 2005
Posts: 281
Location: Indonesia




waraxe : is there a way to defeating crypt function ?

for you all who dont know about crypt() , please read this http://docs.php.net/en/function.crypt.html

_________________
IO::y3dips->new(http://clog.ammar.web.id);
View user's profile Send private message Visit poster's website Yahoo Messenger
PostPosted: Tue Apr 12, 2005 8:46 am Reply with quote
shai-tan
Valuable expert
Valuable expert
Joined: Feb 22, 2005
Posts: 477




How about we all start trying to Brute force Blow Fish salts lol or better yet WPA or maybe we could just try SSL Certs wouldnt it be fun!!!! We could waste our whole life and about 5 generations after and still not crack them till they find out how to truly break them lol.

_________________
Shai-tan

?In short: just say NO TO DRUGS, and maybe you won?t end up like the Hurd people.? -- Linus Torvalds
View user's profile Send private message
Re: defeating crypt() funtions
PostPosted: Tue Apr 12, 2005 12:17 pm Reply with quote
waraxe
Site admin
Site admin
Joined: May 11, 2004
Posts: 2407
Location: Estonia, Tartu




y3dips wrote:
waraxe : is there a way to defeating crypt function ?

for you all who dont know about crypt() , please read this http://docs.php.net/en/function.crypt.html


What do you mean by "defeat"? If Crypy() function will make oneway hashes, then as always there are possibilities to attack by wordlist and just bruteforce. And because Crypt() function by default uses 56bit DES, then i dont think, that it's very secure hashing Cool
View user's profile Send private message Send e-mail Visit poster's website
PostPosted: Tue Apr 12, 2005 3:08 pm Reply with quote
y3dips
Valuable expert
Valuable expert
Joined: Feb 25, 2005
Posts: 281
Location: Indonesia




Smile thats why i use "defeating" not "breaking"
coz i dont want to use some brute forcing Sad( .. it spend more time, even using some word list,


i know its hard to reverse it back.

here the story ,
i found some CMS using this to encrypt the password ,n i found the hole n could get the crypted password, now i just try to known the plain password. i try to use reverse technique , but it useless coz the function get to variable and output one variable (in hash)

for example
Code:

$passwd = $user.$pass;
$hashed = crypt($passwd);


but what i get was the "hashed"

Very Happy

btw thanks all ; maybe i should release it (advisories) without the way breaking the password Laughing

_________________
IO::y3dips->new(http://clog.ammar.web.id);
View user's profile Send private message Visit poster's website Yahoo Messenger
PostPosted: Tue Apr 12, 2005 3:46 pm Reply with quote
erg0t
Valuable expert
Valuable expert
Joined: Apr 08, 2005
Posts: 55
Location: Uruguay




The metods to encrypt passwords aren?t the same as used to encrypt data. As waraxe says, the encryption is one way, is more like a cheksum. You can?t go back.
The only solution is brute force.
I think the best solution to "defeat" this kind of encription algoritms is to try to create the most optimized version of the algoritm to win procesing time when bruteforcing. In some cases you can use something like rainbow tables but, in others (when the hash depends of the user name and other parameters too) you need bruteforce.
View user's profile Send private message Send e-mail Visit poster's website
PostPosted: Tue Apr 12, 2005 3:59 pm Reply with quote
y3dips
Valuable expert
Valuable expert
Joined: Feb 25, 2005
Posts: 281
Location: Indonesia




im agree with you (erg0t) also with waraxe, im just curios about it.
i know it was one way hash n no way to roll it back , so we could do some brute forcing also im agree with finding best algorithm to speed up the brute time .

but i just want to know if there is one of u find the same problem, n ive just wondering if the vendor has use the wrong method in authenticate Smile (for example : send the crypted password as a variable to be matched with passwd in database/file Laughing)

btw , thanks for all the responses

_________________
IO::y3dips->new(http://clog.ammar.web.id);
View user's profile Send private message Visit poster's website Yahoo Messenger
PostPosted: Wed Apr 13, 2005 3:45 am Reply with quote
shai-tan
Valuable expert
Valuable expert
Joined: Feb 22, 2005
Posts: 477




wow so my post was quite relevant..... Wink Still up for some salted SSL certs? Razz

_________________
Shai-tan

?In short: just say NO TO DRUGS, and maybe you won?t end up like the Hurd people.? -- Linus Torvalds
View user's profile Send private message
defeating crypt() funtions
www.waraxe.us Forum Index -> Php
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: 0.047 Seconds