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2.5 KiB
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69 lines
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2.5 KiB
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Sense of Security - Security Advisory - SOS-12-009
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Release Date. 05-Sep-2012
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Last Update. -
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Vendor Notification Date. 07-May-2012
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Product. Ektron CMS
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Platform. ASP.NET
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Affected versions. Ektron CMS version 8.5.0 and possibly others
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Severity Rating. High
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Impact. Exposure of sensitive information
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Exposure of system information
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System Access
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Attack Vector. Remote without authentication
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Solution Status. Fixed in version 8.6
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(not verified by SOS)
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CVE reference. CVE - not yet assigned
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Details.
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The web application is vulnerable to multiple security
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vulnerabilities, such as Unauthenticated File Upload and
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XML eXternal Entities (XXE) injection.
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1.Unauthenticated File Upload:
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The form /WorkArea/Upload.aspx does not require authentication
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to upload a file. By issuing a POST request with a webshell
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embedded in a JPEG image and specifying the ASPX extension it is
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possible to upload ASPX code to /uploadedimages/. The ASPX code
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is placed in the comment section of the JPEG so that it survives
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image resizing.
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2.XXE Injection:
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The XML parser at /WorkArea/Blogs/xmlrpc.aspx is vulnerable to
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XML external entity attacks which can be used to Scan behind
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perimeter firewalls or possibly include files from the local file
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system e.g.
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<!DOCTYPE scan [<!ENTITY test SYSTEM "http://localhost:22">]>
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<scan>&test;</scan>
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Solution.
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Upgrade to version 8.6 and remove the /WorkArea/Blogs/xmlrpc.aspx file.
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Discovered by.
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Phil Taylor and Nadeem Salim from Sense of Security Labs.
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About us.
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Sense of Security is a leading provider of information security and
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risk management solutions. Our team has expert skills in assessment
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and assurance, strategy and architecture, and deployment through to
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ongoing management. We are Australia's premier application penetration
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testing firm and trusted IT security advisor to many of the country's
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largest organisations.
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Sense of Security Pty Ltd
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Level 8, 66 King St
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Sydney NSW 2000
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AUSTRALIA
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T: +61 (0)2 9290 4444
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F: +61 (0)2 9290 4455
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W: http://www.senseofsecurity.com.au/consulting/penetration-testing
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E: info@senseofsecurity.com.au
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Twitter: @ITsecurityAU
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The latest version of this advisory can be found at:
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http://www.senseofsecurity.com.au/advisories/SOS-12-009.pdf
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Other Sense of Security advisories can be found at:
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http://www.senseofsecurity.com.au/research/it-security-advisories.php |