WordPress Pingback File Information Disclosure

medium Nessus Plugin ID 24237

Synopsis

The remote web server contains a PHP application that is affected by an information disclosure vulnerability.

Description

The version of WordPress installed on the remote host fails to sanitize the 'sourceURI' before passing it to the 'wp_remote_fopen()' function when processing pingbacks. An unauthenticated, remote attacker can leverage this issue to determine the existence of local files and possibly to view portions of those files, subject to the permissions of the web server user id.

In addition, this version is also reportedly affected by a denial of service attack because it allows an anonymous attacker to cause the server to fetch arbitrary URLs without limits.

Solution

Upgrade to WordPress version 2.1 or later.

See Also

https://www.securityfocus.com/archive/1/458003/30/0/threaded

https://seclists.org/bugtraq/2007/Jan/561

Plugin Details

Severity: Medium

ID: 24237

File Name: wordpress_pingback_dos.nasl

Version: 1.21

Type: remote

Family: CGI abuses

Published: 1/25/2007

Updated: 1/19/2021

Risk Information

VPR

Risk Factor: Low

Score: 2.5

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N

Temporal Vector: E:U/RL:OF/RC:C

Vulnerability Information

CPE: cpe:/a:wordpress:wordpress

Required KB Items: installed_sw/WordPress, www/PHP

Exploit Ease: No exploit is required

Patch Publication Date: 1/22/2007

Vulnerability Publication Date: 1/24/2007

Reference Information

CVE: CVE-2007-0541

BID: 22220

CWE: 264