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NetCat CMS 5.01 Header Injection

NetCat CMS 5.01 Header Injection
Posted Mar 8, 2015
Authored by Jing Wang

NetCat CMS versions 1.1, 2.0, 2.1, 2.2, 2.3, 2.4, 3.0, 3.12, and 5.01 suffer from a header injection vulnerability.

tags | exploit
SHA-256 | 85d1756070db02e7be6371529c33f98d6bdd50a0d7b061d081042fe6c122412c

NetCat CMS 5.01 Header Injection

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*NetCat CMS Multiple HTTP Response Splitting (CRLF) Security
Vulnerabilities*


Exploit Title: NetCat CMS Multiple CRLF Security Vulnerabilities
Product: NetCat CMS (Content Management System)
Vendor: NetCat
Vulnerable Versions: 5.01 3.12 3.0 2.4 2.3 2.2 2.1 2.0 1.1
Tested Version: 3.12
Advisory Publication: Mar 07, 2015
Latest Update: Mar 07, 2015
Vulnerability Type: Improper Neutralization of CRLF Sequences ('CRLF
Injection') [CWE-93]
CVE Reference: *
Credit: Wang Jing [Mathematics, Nanyang Technological University (NTU),
Singapore]







*Advisory Details:*


*(1) Vendor & Product Description:*


*Vendor:*
NetCat


*Product & Version:*
NetCat
5.01 3.12 3.0 2.4 2.3 2.2 2.1 2.0 1.1


*Vendor URL & Download:*
NetCat can be got from here,
http://netcat.ru/


*Product Introduction:*
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
HTTP Response Splitting (CRLF) attacks. This could allow a remote attacker
to insert arbitrary HTTP headers, which are included in a response sent to
the server. If an application does not properly filter such a request, it
could be used to inject additional headers that manipulate cookies,
authentication status, or more.

*(2.1)* The first code flaw occurs at "/post.php" page with "redirect_url"
parameter by adding "%0d%0a%20".

*(2.2)* The second code flaw occurs at "redirect.php?" page with "url"
parameter by adding "%0d%0a%20".








*References:*
http://securityrelated.blogspot.com/2015/03/netcat-cms-multiple-http-response.html
http://tetraph.com/security/http-response-splitting-vulnerability/netcat-cms-multiple-http-response-splitting-crlf-security-vulnerabilities/
http://www.inzeed.com/kaleidoscope/computer-web-security/netcat-cms-multiple-http-response-splitting-crlf-security-vulnerabilities/
http://diebiyi.com/articles/%E5%AE%89%E5%85%A8/netcat-cms-multiple-http-response-splitting-crlf-security-vulnerabilities/
https://itswift.wordpress.com/2015/03/07/netcat-cms-multiple-http-response-splitting-crlf-security-vulnerabilities/
http://seclists.org/fulldisclosure/2015/Mar/8
http://packetstormsecurity.com/files/130584/NetCat-CMS-5.01-Open-Redirect.html








--
Wang Jing,
Division of Mathematical Sciences (MAS),
School of Physical and Mathematical Sciences (SPMS),
Nanyang Technological University (NTU),
Singapore.
http://www.tetraph.com/wangjing/
https://plus.google.com/u/0/+JingWang-tetraph-justqdjing/posts


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