[Security Advisory] Multiple Vulnerabilities in EASY Enterprise DMS

Multiple Vulnerabilities in EASY Enterprise DMS

– Stored XSS
– Content Injection / Phishing through Frames
– Unauthorized access to files
– Unauthorized manipulation of data

Date: 25.03.2010


EASY Enterprise is a widespread and popular document management system.

Release version 6.0f (Nov 24 2009 #1752) has been found vulnerable to multiple attacks, which affect the integrity and confidentiality of stored content, as well as a compromise of multitenancy.

– XSS, CI / Phishing

File: epctrl.jsp

Parameter: login
Parameter: lng
Parameter: dsn

File: dlc_printLB.jsp

Parameter: dlcFileId

– Stored XSS

In file upload function, parameter filename. No further example will be provided.

– Unauthorized access to files

By changing a URL Parameter (dlcFolderId) to a proper value, it is possible to get access to files the user has no rigths on.

in Addition by guessing values for parameters dlcDocumentId and dlcFileId an unprivileged user is able to download any file stored in the application.

– Unauthorized manipulation of data

By simply enabling deactivated buttons in the server response, an unprivileged user is able to manipulate stored data (document owner, upload user, document state, approval flag)

– Solution

Contact the vendor for a patch or upgrade to version 1754 or higher.

– Credits

The vulnerabilities were discovered by Michael Mueller from Integralis


– Timeline

04.01.2010 – Vulnerabilities discovered

04.01.2010 – Vendor contacted with details

05.01.2010 – Initial vendor response with ACK and fix solution

21.01.2010 – Additional vulnerabilities discovered

22.01.2010 – Vendor contacted with details

Up to date: No vendor response

25.03.2010 – Public release

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