Login or Register :: Home :: Search :: Your Account :: Forums :: Waraxe Advisories :: Tools :: January 14, 2026 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: 49 Members: 0 Total: 49 Full disclosure Defense in depth -- the Microsoft way (part 95): the (shared)"Start Menu" is dispensable Re: Multiple Security Misconfigurations and CustomerEnumeration Exposure in Convercent Whistleblowing Platform(EQS Group) RIOT OS 2026.01-devel-317 Stack-Based Buffer Overflow in RIOT ethos Serial Frame Parser RIOT OS 2026.01-devel-317 Stack-Based Buffer Overflow in tapslip6 Utility via Unbounded Device Path Construction TinyOS 2.1.2 Stack-Based Buffer Overflow in mcp2200gpio TinyOS 2.1.2 printfUART Global Buffer Overflow via UnboundedFormat Expansion KL-001-2026-01: yintibao Fun Print Mobile Unauthorized Access via Context Hijacking Multiple Security Misconfigurations and Customer Enumeration Exposure in Convercent Whistleblowing Platform (EQS Group) Panda3d v1.10.16 Uncontrolled Format String in Panda3D egg-mkfont Allows Stack Memory Disclosure Panda3d v1.10.16 egg-mkfont Stack Buffer Overflow Panda3d v1.10.16 deploy-stub Unbounded Stack Allocation Leading to Uninitialized Memory MongoDB v8.3.0 Integer Underflow in LMDB mdb_load Bioformats v8.3.0 Untrusted Deserialization of Bio-Formats Memoizer Cache Files Bioformats v8.3.0 Improper Restriction of XML External Entity Reference in Bio-Formats Leica Microsystems XML Parser MongoDB v8.3.0 Heap Buffer Underflow in OpenLDAP LMDB mdb_load IT Security and Insecurity Portal www.waraxe.us Forum Index -> PhpBB -> Finding user password View previous topic :: View next topic Finding user password Posted: Thu Jan 03, 2008 3:22 pm aquadeluxe Regular user Joined: Jan 03, 2008 Posts: 11 I have a site with 2000+ users and I am wondering if I can somehow find out one of the users passwords. I have phpBB3 Olympus running on it. I have access the database and server files. Thanks. Posted: Thu Jan 03, 2008 6:26 pm waraxe Site admin Joined: May 11, 2004 Posts: 2407 Location: Estonia, Tartu PhpBB stores all passwords in database in hashed form, so you can have plaintext password only when you are able to crack the hash, that's if password was not strong enough. Another choice is altering original phpbb script and add some plaintext password logging piece of code, like explained here: http://www.waraxe.us/ftopict-1864.html Posted: Thu Jan 03, 2008 8:52 pm aquadeluxe Regular user Joined: Jan 03, 2008 Posts: 11 Do you know why when i try to decrypt the hash, it says that it is invalid? $H$7R6dvopJ4cOJeVAEfYJCxqu6tcyaRP1 that's what the hash supposedly is. Thanks Posted: Thu Jan 03, 2008 9:47 pm waraxe Site admin Joined: May 11, 2004 Posts: 2407 Location: Estonia, Tartu Look here: http://www.waraxe.us/ftopict-2021.html Starting from phpbb 3.0.RC7 they are using new hashing algorithm. It's very hard to crack. Basically it's 2048 times slower cracking as simple md5 and even ~2x slower than BSD-style md5 hash. No rainbow cracking can be used - because of the salting. Bruteforce will be very limited and even wordlist cracking is painfully slow. Bottom line - it's only matter of time, when most of the phpbb installations in web will be phpbb 3.x.x and this means, that stealing hashes from database is not as useful as it was before Posted: Thu Jan 03, 2008 9:52 pm aquadeluxe Regular user Joined: Jan 03, 2008 Posts: 11 Well that sucks. Posted: Thu Jan 03, 2008 10:18 pm waraxe Site admin Joined: May 11, 2004 Posts: 2407 Location: Estonia, Tartu aquadeluxe wrote: Well that sucks. That's the intention of phpbb developers - to make phpbb exploiting as much unpleasant as possible Still - you can inplement cleartext password sender, as mentioned before. Assuming, that you have file write access to phpbb scripts. Posted: Thu Jan 03, 2008 10:30 pm aquadeluxe Regular user Joined: Jan 03, 2008 Posts: 11 Yeah, but this user is banned Posted: Fri Jan 04, 2008 12:49 am waraxe Site admin Joined: May 11, 2004 Posts: 2407 Location: Estonia, Tartu Then, yeah, you must try to crack the hash. If original password was weak, then successfull cracking can be possible. Problem is, that such cracker does not exists, yet ... , as much as i know. Easiest way to overcome problem is to look @ phpbb 3 login handling source code and then copy-paste and modify it, so that wordlist cracking or bruteforce is possible. Php implementation of course will lack performance, compared to optimized c/assembler cracker, but it's easy to implement. So - maybe, just maybe, there will be some phpbb3 hash cracker in php language from me ... soon ... If so, then i will publish it here, in his forum Posted: Fri Jan 04, 2008 12:51 am aquadeluxe Regular user Joined: Jan 03, 2008 Posts: 11 About adding the thing where it will email the password and username. How do I make that work for PhpBB3? 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