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www.waraxe.us Forum Index -> PhpBB -> phpBB atleast 2.0.20 (help getting the Hash or using XSS)
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phpBB atleast 2.0.20 (help getting the Hash or using XSS)
PostPosted: Tue Nov 25, 2008 11:55 pm Reply with quote
SCr0ss
Beginner
Beginner
Joined: Nov 26, 2008
Posts: 3




Hello there.
I need help with getting into a forum (either giving admin permissions or getting the hash from the admin) for testing purposes.
I tried out some XSS and exploits but noone of them worked.
I think most of the exploits are fixed, making me think that the version is atleast 2.0.20. The hash is not saved into the Cookies, so Cookies are kinda useless here.
I know about basic programming languages and some XSS.
Can someone help me out a bit? Atleast a hint?
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PostPosted: Wed Nov 26, 2008 3:23 pm Reply with quote
waraxe
Site admin
Site admin
Joined: May 11, 2004
Posts: 2407
Location: Estonia, Tartu




Phpbb >=2.0.20 is not easy to hack. And XSS is not helping you much, maybe only with XSRF. Your best option is to look at possible neighbour websites on same shared webserver. If target is located at dedicated server, then you are out of luck Smile
And of course look for other attack vectors. Run port scan. Look for other service besides http.
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PostPosted: Wed Nov 26, 2008 4:03 pm Reply with quote
SCr0ss
Beginner
Beginner
Joined: Nov 26, 2008
Posts: 3




Thank you very much for your reply.
If you use automatic login though it would be possible to get the hash with a cookie stealer right?
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PostPosted: Wed Nov 26, 2008 4:50 pm Reply with quote
waraxe
Site admin
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Joined: May 11, 2004
Posts: 2407
Location: Estonia, Tartu




From phpbb 2.0.20 source code:

Code:

if ( !empty($key_sql) )
{
$auto_login_key = dss_rand() . dss_rand();

$current_time = time();

$sql = 'UPDATE ' . SESSIONS_KEYS_TABLE . "
SET last_ip = '$user_ip', key_id = '" . md5($auto_login_key) . "', last_login = $current_time
WHERE key_id = '" . md5($userdata['session_key']) . "'";


So it's obvious, that autologin feature is using random tokens.
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PostPosted: Wed Nov 26, 2008 5:10 pm Reply with quote
SCr0ss
Beginner
Beginner
Joined: Nov 26, 2008
Posts: 3




waraxe wrote:
From phpbb 2.0.20 source code:

Code:

if ( !empty($key_sql) )
{
$auto_login_key = dss_rand() . dss_rand();

$current_time = time();

$sql = 'UPDATE ' . SESSIONS_KEYS_TABLE . "
SET last_ip = '$user_ip', key_id = '" . md5($auto_login_key) . "', last_login = $current_time
WHERE key_id = '" . md5($userdata['session_key']) . "'";


So it's obvious, that autologin feature is using random tokens.


Yes I see, thank you.
No secruity holes then Razz
The only one left seems to be "forget password" (it uses the server time as far as I know to generate a random key).
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phpBB atleast 2.0.20 (help getting the Hash or using XSS)
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