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Home arrow SecurityAlert Database

Arrow  Topic :

UBBThreads 5.x,6.x md5 hash disclosure


Arrow  SecurityAlert : 1007
Arrow  CVE : CVE-2006-2755
Arrow  SecurityRisk : Medium  Security Risk Medium  (About)
Arrow  Remote Exploit : Yes
Arrow  Local Exploit : No
Arrow  Exploit Available : Yes
Arrow  Credit : chris splices org
Arrow  Published : 03.06.2006

Arrow  Affected Software : UBBThreads 5.x,6.x



Arrow  Advisory Content :  

UBBThreads 5.x,6.x md5 hash disclosure

-------------------------------------------

Using XSS such as the one reported earlier:

http://[site]/[ubbpath]/index.php?debug=[xss]

will allow you to inject javascript and steal MD5 Hashes from:

http://[site]/[ubbpath]/editbasic.php

The MD5 is automatically included in the source of the html for a logged on
user, the field type is password so it appears as "******" - although the
source contains the MD5. Below is an example snippet of the html source:

<input type="password" name="ChosenPassword"
value="81dc9bdb52d04dc20036dbd8313ed055" class="formboxes" />

<br />

<br />

Verify Password

<br />

<input type = "password" name = "Verify" value =
"81dc9bdb52d04dc20036dbd8313ed055" class="formboxes" />

A malicious attacker could force a user to perform a GET request to the xss
containing js to steal their hash.

The below javascript would grab the MD5 using the XMLHttpRequest object.
str is defined as the ResponseText from XMLHttpRequest()

function findmd5(str){

var s = str.indexOf('name="ChosenPassword" value="');

var e = str.indexOf('" class=f', s);

return str.substring(s+29, e);

}

-------------------------------------------------

Discovered By:

splices

www.securident.com




Arrow  Feedback :

If you have additional information or notice any errors regarding this security advisory, please use contact form or email us at info()securityreason()com.
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