ezContents CMS Multiple Vulnerabilities

[admin () bugreport ir]

##########################www.BugReport.ir########################################
#
#        AmnPardaz Security Research Team
#
# Title:                ezContents CMS Multiple Vulnerabilities
# Vendor:               http://ezcontents.org/
# Vulnerable Version:   2.0.3 (and prior versions)
# Exploitation:         Remote with browser
# Fix:                  N/A
###################################################################################

####################
- Description:
####################

ezContents is a nice PHP CMS which allow management of dynamic  
contents and web publishing.

####################
- Vulnerability:
####################

+--> SQL Injection
Most of GET and POST parameters are not sanitized before being used in  
SQL query.

Vulnerable Pages/Affected Parameters:
 - 'admin/adminlogin.php'/'login'
 - 'bannerclick.php'/'id'
 - 'comments.php'/'article'
 - 'control.php'/'topgroupname' and 'groupname'
 - 'headeruserdata.php'/'topgroupname' and 'groupname'
 - 'login.php'/'subgroupname' and 'groupname' and 'topgroupname' and 'login'
 - 'menu.php'/'groupname' and 'topgroupname'
 - 'module.php'/'topgroupname' and 'groupname'
 - 'modules/diary/m_diaryform.php'/'DiaryID'
 - 'modules/diary/showdiary.php'/'month' and 'year'
 - 'modules/diary/showdiarydetail.php'/'diaryid'
 - 'modules/gallery/m_galleryform.php'/'galleryID'
 - 'modules/gallery/showgallerydetails.php'/'galleryid'
 - 'modules/links/m_linksform.php'/'GuestbookID'
 - 'modules/guestbook/m_guestbookform.php'/'LinkID'
 - 'modules/modfunctions.php'/'topgroupname'
 - 'modules/news/m_news.php'/'NewsID'
 - 'modules/news/shownewsdetails.php'/'newsid'
 - 'modules/poll/m_pollform.php'/'PollID'
 - 'modules/poll/m_polloptiondel.php'/'PollOptionID'
 - 'modules/poll/m_polloptions.php'/'PollID'
 - 'modules/poll/m_polloptionsform.php'/'PollOptionID'
 - 'modules/reviews/m_reviewsform.php'/'reviewsID'
 - 'modules/reviews/showreviewdetails.php'/'reviewsid'
 - 'printer.php'/'article'
 - 'rateit.php'/'article'
 - 'selectsite.php'/'Site'
 - 'selecttheme.php'/'Theme'
 - 'showcontents.php'/'groupname' and 'subgroupname' and 'topgroupname'
 - 'showdetails.php'/'contentname'
 - 'userinfo.php'/'topgroupname'

+--> Authentication Bypass
Authentication Bypass in 'comments.php'. No check for login performed.


####################
- Exploits/PoCs:
####################

        The admin password can be extracted using timing attack.
        The general SQL Injection vector for exploiting login page
        is:
            admin' AND IF(@Condition,BENCHMARK(1000000, md5(10)),2) OR '1'='1
        In the above vector @Condition can be replaced with any boolean
        experation and in case of true value page will have a sensible wait
        before starting transfer phase.
        For extracting password, we first find the length of password
        using 'length(userpassword)>**' as @Condition and binary search on
        ** pass length.
        Then we can find i-th character of the password using
        "substring(userpassword,i,1) > '*'" as @Condition and binary search
        on the * as characters.

####################
- Solution:
####################

Edit the source code to ensure that inputs are properly sanitized.

####################
- Original Advisory:
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http://www.bugreport.ir/index_65.htm

####################
- Credit:
####################
AmnPardaz Security Research Team
Contact: admin[4t}bugreport{d0t]ir
www.BugReport.ir
www.AmnPardaz.com