*NetCat CMS 3.12 Multiple Directory Traversal Security Vulnerabilities*

Exploit Title: NetCat CMS 3.12 Multiple Directory Traversal Security
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.


Wang Jing,
Division of Mathematical Sciences (MAS),
School of Physical and Mathematical Sciences (SPMS),
Nanyang Technological University (NTU),

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