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NetCat CMS 3.12 Multiple Directory Traversal Security Vulnerabilities


Exploit Title: NetCat CMS 3.12 Multiple Directory Traversal Security Vulnerabilities

Product: NetCat CMS (Content Management System)

Vendor: NetCat

Vulnerable Versions: 3.12 3.0 2.4 2.3 2.2 2.1 2.0 1.1

Tested Version: 3.12

Advisory Publication: April 14, 2015

Latest Update: April 14, 2015

Vulnerability Type: Improper Limitation of a Pathname to a Restricted Directory (‘Path Traversal’) [CWE-22]

CVE Reference: *

Impact CVSS Severity (version 2.0):

CVSS v2 Base Score: 7.5 (HIGH) (AV:N/AC:L/Au:N/C:P/I:P/A:P) (legend)

Impact Subscore: 6.4

Exploitability Subscore: 10.0

Discovert and Reporter: Wang Jing [CCRG, Nanyang Technological University (NTU), Singapore]




Advisory Details:


(1) Vendor & Product Description:




Product & Vulnerable Version:


3.12 3.0 2.4 2.3 2.2 2.1 2.0 1.1


Vendor URL & Download:

NetCat can be obtained from here,



Product Introduction Overview:

NetCat.ru is russian local company. “NetCat designed to create an absolute majority of the types of sites: from simple “business card” with a minimum content to complex web-based systems, from corporate offices to online stores, libraries or media data – in other words, projects completely different directions and at any level of complexity. View examples of sites running on NetCat CMS can be in a special section.”

“Manage the site on the basis of NetCat can even inexperienced user, because it does not require knowledge of Internet technologies, programming and markup languages. NetCat constantly improving, adds new features. In the process of finalizing necessarily take into account the wishes of our partners and clients, as well as trends in Internet development. More than 2,000 studios and private web developers have chosen for their projects is NetCat, and in 2013 sites, successfully working on our CMS, created more than 18,000.”




(2) Vulnerability Details:

NetCat web application has a security bug problem. It can be exploited by Directory Traversal – Local File Include (LFI) attacks. A local file inclusion (LFI) flaw is due to the script not properly sanitizing user input, specifically path traversal style attacks (e.g. ‘../../’) supplied to the parameters. With a specially crafted request, a remote attacker can include arbitrary files from the targeted host or from a remote host . This may allow disclosing file contents or executing files like PHP scripts. Such attacks are limited due to the script only calling files already on the target host.

Several other NetCat products 0-day vulnerabilities have been found by some other bug hunter researchers before. NetCat has patched some of them. Gmane (pronounced “mane”) is an e-mail to news gateway. It allows users to access electronic mailing lists as if they were Usenet newsgroups, and also through a variety of web interfaces. Gmane is an archive; it never expires messages (unless explicitly requested by users). Gmane also supports importing list postings made prior to a list’s inclusion on the service. It has published suggestions, advisories, solutions related to Directory Traversal vulnerabilities.


(2.1) The first programming code flaw occurs at “/netcat/index.php?” page with “&INCLUDE_FOLDER” parameter.

(2.2) The second programming code flaw occurs at “/eshop/index.php?” page with “&INCLUDE_FOLDER” parameter.

(2.3) The third programming code flaw occurs at “/add.php?” page with “&INCLUDE_FOLDER” parameter.