477bcbdcc0
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91 lines
3.8 KiB
Text
Executable file
91 lines
3.8 KiB
Text
Executable file
-[*]+================================================================================+[*]-
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-[*]+ CCLeague Pro <= 1.2 Insecure Cookie Authentication Vulnerability +[*]-
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-[*]+================================================================================+[*]-
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[*] Discovered By: t0pP8uZz
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[*] Discovered On: 19 JUNE 2008
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[*] Script Download: http://castillocentral.com/
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[*] DORK: "Powered by CCLeague Pro" (alot of sites removed dork, so find another)
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[*] Vendor Has Not Been Notified!
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[*] DESCRIPTION:
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CCLeage Pro 1.2 and all prior versions suffer from multiple insecure cookie validation vulnerabilitys.
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Lets take a look at a line from the "admin.php" file from "CCLeage Pro 1.2"
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CODE LINE 52 (admin.php):
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if($_COOKIE['PHPSESSID'] == session_id( ) && $_COOKIE['type'] == "admin") { .. }
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As we can see above, the script checks to see if a cookie is set and matches a value, as we know this is very easy to bypass by creating a cookie,
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but now what above the "$_COOKIE['PHPSESSID'] == session_id( )" how do we bypass this you ask?
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well in some versions this part doesnt even exist, but most hosts are running the upto date versions so we still need a way to bypass.
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anyway, the php function session_id checks/returns the PHPSESSID if any, and here it is returning the sessionid, since we havent created any session
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the function will return "" (not null), so all we need to do is make our PHPSESSID match this, and since its grabbing it from a cookie thats simple.
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at the minute our PHPSESSID will be some random hash, so we can simply change this by overwriting the cookie.
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See the javascript code below in a second to successfully exploit this.
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Once you have run the javascript code in your browser, you will be able to visit the "admin.php" area without having to login, but now
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you probarly see alot of errors, this is because the script attempts to load the admin preferences based on a cookie, since we dont have this cookie set
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its pulling non-existent data from the mysql database.
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so once again we need to set another cookie which needs to contain a existing admins email address, this should be too hard to obtain from sniffing around
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the site.
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here is the line of code from the admin.php which attempts to select the admin config from the db.
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CODE LINE 67 (admin.php): $admininfo = mysql_query("SELECT * FROM ".$_CONF['tprefix']."administrators WHERE contact_email = '$_COOKIE[u]' LIMIT 0,1");
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there is also a sql injection in the above line, if magic quotes are off, so you rippers dont bother reposting that has a seperate vulnerability.
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Thats about it, Check below for the javascript code which will craft the cookies for you.
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Goodluck!
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[*] Vulnerability/Javascript:
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javascript:document.cookie = "type=admin; path=/"; document.cookie = "PHPSESSID=; path=/"; // this will create one cookie and null the other
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javascript:document.cookie = "u=admin@domain.com; path=/"; // replace the email with a existent admin email from the site, if this isnt correct your not gona get very far.
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[*] NOTE/TIP:
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Use the dork and find a site, navigate to the site, once at the site run the above javascript code (paste into your address bar), dont forget
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to replace the email in the second javascript line.
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after you have done the above steps visit the admin area at "admin.php"
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[*] GREETZ:
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milw0rm.com, h4ck-y0u.org, Offensive-Security.com, CipherCrew !
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[-] peace,
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t0pP8uZz
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-[*]+================================================================================+[*]-
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-[*]+ CCLeague Pro <= 1.2 Insecure Cookie Authentication Vulnerability +[*]-
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-[*]+================================================================================+[*]-
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# milw0rm.com [2008-06-21]
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