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Arrow  Topic :

MULTI SECURITY VULNERABILITIES IN MVNFORUM


Arrow  SecurityAlert : 4699
Arrow  CVE : CVE-2008-5399
Arrow  CVE : CVE-2008-5400
Arrow  CWE : CWE-79
Arrow  SecurityRisk : Low  Security Risk Low  (About)
Arrow  Remote Exploit : Yes
Arrow  Local Exploit : No
Arrow  Victim interaction required : No
Arrow  Exploit Available : No
Arrow  Credit : SVRT-Bkis
Arrow  Published : 11.12.2008

Arrow  Affected Software : mvnforum:mvnforum:1.1.:ga
mvnforum:mvnforum:1.0.2.:ga
mvnforum:mvnforum:1.0.0:rc4
mvnforum:mvnforum:1.0.0:rc3_01
mvnforum:mvnforum:1.0.0:rc2
mvnforum:mvnforum:1.0.0:rc1
mvnforum:mvnforum:1.0.0:beta3
mvnforum:mvnforum:1.0.0:beta2
mvnforum:mvnforum:1.0.0:beta1
mvnforum:mvnforum:1.2.:ga and previous versions



Arrow  Advisory Content :  

MULTI SECURITY VULNERABILITIES IN MVNFORUM

1. General Information
mvnForum is software used for creating forums on the Internet
(http://www.mvnforum.com). This is an open source software making use of
Java J2EE (ISP/Servlet) technology.

On September 6 2008, SVRT-Bkis found several CSRF and XSS vulnerabilities
in
some functions of mvnForum 1.2 GA. These are highly serious vulnerabilities

allowing hackers to perform privilege escalation attack on the Forum.

We have contacted the development team and they have patched all those
vulnerabilities in the latest version of mvnForum 1.2.1 GA.

Details : http://security.bkis.vn/?p=286
SVRT Advisory : SVRT-06-08
Initial vendor notification : 30-10-2008
Release Date : 03-12-2008
Update Date : 03-12-2008
Discovered by : SVRT-Bkis
Attack Type : CSRF, XSS
Security Rating : Critical
Impact : Privilege escalation
Affected Software : mvnForum (version <= 1.2 GA)

2. Technical Description
We have detected five vulnerabilities in different functions of mvnForum,
four of which are CSRF (Cross-site request forgery) flaw and the other is
an
XSS (Cross-site scripting) flaw.

More precisely, four CSRF vulnerabilities make way for hackers to escalate

their privilege on such forum by tricking the administrator to perform some

task without asking him/her for confirmation. Tasks relating to these four

vulnerabilities are:
- Creating a new forum where the hacker is the administrator.
- Raise the privilege of an arbitrary account.
- Give an arbitrary account the sub-forum administrator privilege.
- Enable or disable an arbitrary account.

The XSS vulnerability is in the "Who's online" function of the forum. If
hackers successfully exploit this flaw, malicious code (JavaScript) will be

executed whenever the administrator view information with this function.

3. Solution
Rating these highly critical vulnerabilities, Bkis Center recommends that
all units, organizations and individuals using mvnForum should immediately

update their forums with the latest version of the application here:
http://sourceforge.net/project/showfiles.php?group_id=65527&package_id=6
3007

4. Credit
Thanks Dau Huy Ngoc for working with SVRT-Bkis

----------------------------------------------------------------
SVRT, which is short for Security Vulnerability Research Team, is one of
Bkis researching groups. SVRT specializes in the detection, alert and
announcement of security vulnerabilities in software, operating systems,
network protocols and embedded systems.

Bach Khoa Internetwork Security Center (BKIS)
Hanoi University of Technology (Vietnam)

Email : svrt (at) bkav.com (dot) vn [email concealed]
Website : www.bkav.com.vn
WebBlog : http://security.bkis.vn
Our PGP : http://security.bkis.vn/policy/pgp/SVRT-Bkis.gpg
----------------------------------------------------------------

.
SVRT-Bkis



Arrow  References :

http://www.securityfocus.com/bid/32605
http://www.securityfocus.com/archive/1/archive/1/498872/100/0/threaded
http://www.mvnforum.com/mvnforum/viewthread_thread,4361
http://security.bkis.vn/?p=286
http://secunia.com/advisories/32931
http://osvdb.org/50403




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