The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers). An example of a network attack is an attacker causing a denial of service by sending a specially crafted TCP packet across a wide area network (e.g., CVE-2004-0230).
Attack Complexity
Low
AC
The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Privileges Required
None
PR
The attacker is unauthenticated prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.
User Interaction
None
UI
The vulnerable system can be exploited without interaction from any human user, other than the attacker. Examples include: a remote attacker is able to send packets to a target system a locally authenticated attacker executes code to elevate privileges
Scope
Unchanged
S
An exploited vulnerability can only affect resources managed by the same security authority. In the case of a vulnerability in a virtualized environment, an exploited vulnerability in one guest instance would not affect neighboring guest instances.
Confidentiality
None
C
There is no impact on the confidentiality of the system; the attacker does not gain the ability to read any data.
Integrity
Low
I
Modification of data is possible, but the attacker does not have control over what can be modified, or the extent of what the attacker can affect is limited. The data modified does not have a direct, serious impact on the system.
Availability
None
A
There is no impact on the availability of the system; the attacker does not have the ability to disrupt access to or use of the system.
Products: Chipmunk >> ( Forum , Topsites , Directory )
, [ Guestbook ]
Versions: Tested: Last released of products
Vendor: http://chipmunk-scripts.com
Bug: ( XSS ) , [ Path Disclosure ]
Exploitation: Remote
---------------------------
Introduction:
Chipmunk Forum is a small yet flexible and fully
featured forum system.
Chipmunk Topsites is a flexible topsite system
utilizing PHP4/mysql.
Chipmunk Directory is a powerful link indexing script.
Chipmunk Guestbook is an easy to use yet powerful
guestbook with a customizable layout
---------------------------
vulnerability:XSS ( Forum , Topsites , Directory )
XSS Vulnerability in multiple PHP pages that may allow
a remote user to launch cross-site scripting attacks.
A remote user can create a specially crafted URL that,
when loaded by a target user, will cause arbitrary
scripting code to be executed by the target user's
browser. The code will originate from the site running
the software and will run in the security context of
that site. As a result, the code will be able to
access the target user's cookies (including
authentication cookies), if any, associated with the
site, access data recently submitted by the target
user via web form to the site, or take actions on the
site acting as the target user.
vulnerability:Path Disclosure [ Guestbook ]
A remote user can supply a specially crafted URL to
cause the system to display an error message that
discloses the installation path and other data.
----------------------------
Demonstration XSS URL :
http://example.com/board/newtopic.php?forumID='%3C/a>%3CIFRAME%20SRC=jav
ascript:alert(%2527xss%2527)%3E%3C/IFRAME%3E
http://example.com/board/quote.php?forumID='%3C/a>%3CIFRAME%20SRC=javasc
ript:alert(%2527xss%2527)%3E%3C/IFRAME%3E
& [ board/index.php , board/reply.php ]
http://example.com/topsites/recommend.php?ID='%3C/a>%3CIFRAME%20SRC=java
script:alert(%2527xss%2527)%3E%3C/IFRAME%3E
http://example.com/directory/recommend.php?entryID='%3C/a>%3CIFRAME%20SR
C=javascript:alert(%2527xss%2527)%3E%3C/IFRAME%3E
Demonstration Path Disclosure URL :
http://example.com/guestbook/index.php?start='
-----------------------------
Solution:
There is no vendor-supplied patch for this issue at
this time.
-------------------------------
Credits:
Discovered & released by trueend5
Security Science Researchers Institute Of Iran
[KAPDA.ir]
Original Advisory:
http://irannetjob.com/content/view/148/28/
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