Vulnerability CVE-2009-4449
Published: 2009-12-29   Modified: 2012-02-13

Description:
Directory traversal vulnerability in MyBB (aka MyBulletinBoard) 1.4.10, and possibly earlier versions, when changing the user avatar from the gallery, allows remote authenticated users to determine the existence of files via directory traversal sequences in the avatar and possibly the gallery parameters, related to (1) admin/modules/user/users.php and (2) usercp.php.

Type:

CWE-22

 (Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'))

CVSS2 => (AV:N/AC:M/Au:S/C:C/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.3/10
6.9/10
6.8/10
Exploit range
Attack complexity
Authentication
Remote
Medium
Single time
Confidentiality impact
Integrity impact
Availability impact
Complete
None
None
Affected software
Mybboard -> MYBB 

 References:
http://blog.mybboard.net/2009/12/29/mybb-1-4-11-released-minor-patch-security-update/
http://www.vupen.com/english/advisories/2009/3651
http://www.securityfocus.com/bid/37489
http://secunia.com/advisories/37906
http://osvdb.org/61359
http://openwall.com/lists/oss-security/2010/12/06/2
http://openwall.com/lists/oss-security/2010/10/11/8
http://openwall.com/lists/oss-security/2010/10/08/7
http://dev.mybboard.net/projects/mybb/repository/revisions/4663/diff/branches/1.4-stable/usercp.php
http://dev.mybboard.net/projects/mybb/repository/revisions/4663/diff/branches/1.4-stable/admin/modules/user/users.php
http://dev.mybboard.net/issues/617
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