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TITLE:
DotNetNuke Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA31893

VERIFY ADVISORY:
https://secunia.com/advisories/31893/

CRITICAL:
Moderately critical

IMPACT:
Security Bypass, Privilege escalation, System access

WHERE:
>From remote

SOFTWARE:
DotNetNuke 3.x
https://secunia.com/advisories/product/5103/
DotNetNuke 4.x
https://secunia.com/advisories/product/12059/

DESCRIPTION:
Some vulnerabilities have been reported in DotNetNuke, which can be
exploited by malicious users to gain escalated privileges and by
malicious people to bypass certain security restrictions and
potentially compromise a vulnerable system.

1) An error in the validation of user identities can be exploited to
impersonate another user and perform certain actions with that user's
privileges.

Successful exploitation requires valid user credentials.

This vulnerability is reported in versions 4.4.1 - 4.8.4.

2) Input passed via unspecified parameters is not properly verified
before being used to load skin files. This can be exploited to load
an existing ascx file and bypass certain security restrictions.

Successful exploitation potentially allows to gain administrative
privileges or compromise an affected system.

This vulnerability is reported versions 2.0 - 4.8.4.

NOTE: A disclosure of version information via the install wizard has
also been reported.

SOLUTION:
Update to version 4.9.0.

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Brandon Haynes

ORIGINAL ADVISORY:
https://www.dotnetnuke.com/News/SecurityPolicy/Securitybulletinno21/tabid/1174/Default.aspx
https://www.dotnetnuke.com/News/SecurityPolicy/Securitybulletinno22/tabid/1175/Default.aspx
https://www.dotnetnuke.com/News/SecurityPolicy/Securitybulletinno23/tabid/1176/Default.aspx

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